# Geochronology and geochemistry of Meso- to Neoarchean magmatic epidote-bearing potassic granites, western Dharwar Craton (Bellur–Nagamangala–Pandavpura corridor), southern India: implications for the successive stages of crustal reworking and cratonization

M. Jayananda, Martin Guitreau, T. Tarun Thomas, Hervé Martin, K.

Aadhiseshan, R. Gireesh, Jean-Jacques Peucat, M. Satyanarayanan

► To cite this version:

M. Jayananda, Martin Guitreau, T. Tarun Thomas, Hervé Martin, K. Aadhiseshan, et al., Geochronology and geochemistry of Meso- to Neoarchean magmatic epidote-bearing potassic granites, western Dharwar Craton (Bellur–Nagamangala–Pandavpura corridor), southern India: implications for the successive stages of crustal reworking and cratonization. Geological Society of London. Archean Granitoids of India: Windows into Early Earth Tectonics, 489 (1), Geological Society of London, pp.79-114, 2020, Geological society special publication, 9781786204462. 10.1144/sp489-2018-125. hal-04432407

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Geochronology and geochemistry of Meso- to Neoarchean magmatic epidote-bearing
potassic granites, Western Dharwar Craton (Bellur-Nagamangala-Pandavpura
corridor), Southern India: Implications for the successive stages of crustal reworking
and cratonization

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M.Jayananda¹*, Martin Guitreau², T. Tarun Thomas¹, Hervé Martin², K.R. Aadhiseshan³,

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R.V.Gireesh³., Jean-Jacques Peucat⁴ and M. Satyanarayanan⁵

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¹ Centre for Earth, Ocean and Atmospheric Sciences, University of Hyderabad, Gachibowli,
Hyderabad – 500 046, India

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² Université Clermont Auvergne, Laboratoire Magmas et Volcans, IRD, CNRS, UMR 6524, 6
Avenue Blaise Pascal, 63178 Aubière, France.

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³Department of Geology, University of Delhi, Delhi-110 007, India

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⁴Geosciences Rennes, Université Rennes I, Rennes, 35042 France.

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⁵CSIR-National Geophysical Research Institute, Uppal Road, Hyderabad – 500 007, India

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*Corresponding author (e-mail : mjayan.geol@gmail.com)

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Keywords: Zircon U-Pb geochronology, Dharwar craton, Archean, potassic granite, magmatic epidote, cratonization.

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**Abstract:**

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The present study addresses successive stages of Meso-to Neoarchean crustal reworking, potassic granite magmatism, and craton forming processes in a crustal corridor between the Western and Central Dharwar craton (Southern India). We present field, petrographic characteristics, zircon U-Pb ages, Nd isotopes, major and trace element data for the granitic plutons from this corridor. Field relationships reveal three stages of plutonism including: (1) sparse plutons intruding the TTG basement away from the western boundary of the
27 Nagamangala greenstone belt (2) plutons adjoining the Nagamangala greenstone belt and (3) plutons to the south of Nagamangala greenstone belt in the Pandavpura region. Petrographic characteristics of plutons within TTG basement reveal dominantly granodioritic composition whilst plutons found at the contact with Nagamangala greenstone belt are dominantly monzogranitic, quartz-monzoniti and granodioritic in composition. On the other hand, plutons in Pandavpura region have monzogranite to quartz-monzonite composition. Zircon U-Pb ages show that the plutons emplaced in three distinct periods, wherein plutons in TTG basement emplaced at ca. 3.2 Ga, whilst plutons adjoining greenstone belt show ages of ca. 3.0 Ga, and plutons in the Pandavpura region yield ages ca. 2.6 Ga. Major and trace element data of the 3.2 Ga granodiorite indicate their origin through melting of mafic protoliths without any significant residual garnet. REE have poorly fractionated patterns with negative Eu anomalies together with Nd model ages of ca. 3.0 Ga. These plutons show that crust played a prominent role in their genesis while mantle component remained subordinated. Melts derived from those two components interacted through mixing and mingling as evidenced by field relationships, Harker binary diagrams and Nd isotope data. REE have poorly fractionated patterns with negative Eu anomalies. All these evidences indicate that these ca. 2.6 Ga plutons resulted of crustal melting leaving aplagioclase-bearing residue. The presence of magmatic epidote in all the studied granites points to their crystallization at pressure of at least 5 kbars (~15km depth). The 3.2 Ga intrusions could correspond to the reworking associated with the terminal event of a major juvenile crust forming episode whilst 3.0 Ga potassic granites corresponds to cratonization of the WDC throughout which melting of the deep crust resulted in depletion of heat producing elements, eventually, leading to an efficient cooling of the deep continental crust. The ca. 2.6 Ga Pandavpura granite could represent final stabilization of the WDC as the 2.5 Ga granite magmatism is absent.

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## 1. Introduction

Study of continental evolution and craton forming processes have been major themes of research in Earth Sciences over the last three decades (e.g., Cawood et al., 2013).

Understanding the origin of protocontinents is important as it is linked with chemical and thermal evolution of the Earth mantle as well as emergence of life. The major uncertainty regarding Archean protocontinent formation is that most models propose extensive juvenile crust accretion (e.g., Taylor and McLennan, 1985; Roberts and Spencer, 2014). However, present-day crust distribution is apparently inconsistent with such hypothesis (Goodwin, 1996) and would indicate important crust recycling into the mantle and/or crustal reworking leading to generation of potassic granitoids. Most models proposed for the Archean crustal evolution are based on the balance between new juvenile crust additions and reworking of pre-existing continental crust (e.g., Allègre and Rousseau, 1984; Iizuka et al., 2005; Kamber, 2015). Major and trace elements, as well as radiogenic and stable isotope data, show that juvenile accretion was the dominant process during the Eoarchean to the Paleoarchean that contributed to Archean continental growth whilst reworking processes became progressively more important from Neoarchean onwards (e.g., Valley et al., 2005; Kamber, 2015; Jayananda et al., 2006, 2018).

This pattern is also visible within the evolution of Archean cratons which show juvenile addition of material (TTG suites; e.g., Moyen and Martin, 2012) until it undergoes reworking that leads to the formation of potassic granites (e.g., Martin et al., 1997; Laurent et al., 2014; Moyen et al., 2003). These reworking events are spatially linked to major thermal event and stabilization of Archean continental crust (e.g. Jayananda et al., 2006; Laurent et al., 2013, 2014). However, the details of the petrogenetic reworking mechanisms, their link to juvenile accretion, thermal events and cratonization of Archean crust are still under debate.

The Archean Dharwar craton (e.g., Jayananda et al., 2018) is an ideal target (Fig.1) to address the issue of relative inputs of juvenile additions and crustal reworking in Archean
crustal evolution as well as spatial link between juvenile accretion, tectonothermal events,
crustal reworking and cratonization. Several potassic granite plutons are exposed close to the
eastern margin of the Western Dharwar Craton (WDC) in an area located around Bellur-
Nagamangala and Pandavpura cities (Fig.2) may be reliable markers of the reworking and
stabilization of this block. Until now, no field, petrological, geochronological and geochemical
study have addressed their petrogenesis as well as their significance in the crustal evolution of
the WDC. Consequently, the main purpose of this contribution is to 1) constrain the timing of
potassic plutonism in Bellur-Nagamangala and Pandavpura regions, 2) decipher their
petrogenesis, 3) characterize their relationships with the surrounding basement and, finally, 4)
integrate all the results to discuss the whole crustal evolution of the WDC. In order to address
all these issues, this study presents field, petrography, zircon U-Pb ages, major and trace
element as well as Sm-Nd isotope data for the plutons in Bellur-Nagamangala-Pandavpura
corridor (Fig.1 and 2).

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## 2. Regional geology of the Dharwar craton

The Dharwar craton preserves a large tilted panel of Archean continental crust with a
progressive transition from greenschist in the north to granulite facies in the south
corresponding to upper to lower crustal levels, respectively (Fig.1). The craton consists in three
main lithological units: 1) TTG-type Peninsular gneisses; 2) volcano- sedimentary
greenstone belts formed in two stages (>3.2 Ga old Sargur Group and 3.0-2.6 Ga younger
Dharwar Supergroup), and 3) younger calc-alkaline to potassic granites (Jayananda et al.,
2018). Earlier studies divided the Dharwar craton into two sub-blocks (western and eastern)
separated by the Chitradurga shear zone (Swami Nath et al., 1976; Jayananda et al., 2006;
Chardon et al., 2008). More recently, based on the nature and abundance of greenstone-granite
patterns, age of the basement rocks, crustal thickness, and distinct thermal records the craton

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102 has been sub-divided into three cratonic micro-blocks (western, central and eastern) (Jayananda
103 et al., 2013a; Peucat et al., 2013; Dey., 2013). In this scheme, the Chitradurga boundary shear
104 zone separates the western and central blocks, and the Kolar-Kadiri-Hungund belts forms the
105 boundary between central and eastern blocks.

106 The western block consists of a thick (~45 km) crust mainly made up of ca. 3.45-3.23 Ga-old
107 TTG-type Peninsular gneisses (Guitreau et al., 2017; Jayananda et al., 2015) that are
108 tectonically inter-layered with the komatiite-rich Sargur Group greenstone sequences emplaced
109 between 3.38 and 3.15 Ga (Jayananda et al., 2008; Maya et al., 2017). Both lithological units
110 are overlaid by 3.0-2.67 Ga Dharwar Supergroup greenstone sequences that are
111 stratigraphically sub-divided into the Bababudan Group (at the basis) overlain by the
112 Chitradurga Group (Swami Nath and Ramakrishnan 1981). The basis of the Bababudan Group
113 consists in conglomerates, thick basaltic flows (dated at 3.0-2.85 Ga; Kumar et al., 1996) with
114 interlayered quartzite, phyllite and Banded Iron Formations(BIF), at the summit whilst the
115 Chitradurga Group is made up of quartzitic conglomerate, basaltic flows, carbonate,
116 greywacke-argillite, felsic volcanics (dated at 2.67 Ga, Nutman et al., 1996; Jayananda et al.,
117 2013b) and BIFs. All these lithologies were subsequently intruded by 2.62 Ga potassic plutons
118 (Jayananda et al., 2006; Chadwick et al., 2007).

119 The central block is made of two generations of TTG emplaced at 3.36-3.0 Ga and 2.7-2.56
120 Ga. The older TTGs contain small interlayered discontinuous bands of high-grade supracrustal
121 rocks whilst the younger transitional TTGs are associated with thin elongated volcanic-
122 dominated greenstone sequences showing bimodal age distribution (2.7-2.67 Ga and 2.58-2.54
123 Ga (Balakrishnan et al., 1999; Jayananda et al., 2013b). These older TTG greenstone
124 associations intruded by north-south trending calc-alkaline magmatic intrusions. These
125 intrusions are composite magmatic bodies containing voluminous mantle derived juvenile
126 component with minor crustal anatectic melts (Moyen et al. 1997, Moyen et al, 2000,
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(Jayananda et al., 2000, 2014; Moyen et al., 2001, 2003a). The most spectacular of those intrusions is the 2.54-2.52 Ga Closepet granite which runs about 500 km from south to the north comprises most abundant juvenile facies of sanukitoid (Martin et al, 2010) affinity and minor anatectic granite (Jayananda et al., 1995; Moyen et al., 2001, 2003).

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The eastern block exclusively contains younger transitional TTG, emplaced between 2.7 and 2.55 Ga that are contemporaneous with greenstone sequences (Khanna et al., 2017; Dey et al., 2018; Jayananda et al., 2013a, 2018). Abundant 2.53 Ga-old diatexites together with minor discontinuous calc-alkaline juvenile plutonic bodies emplaced 2.54 Ga ago (Dey et al., 2014; Moyen et al., 2003a). On cratonic scale, strain fabrics mapping and kinematic analysis reveal dome and basin patterns, north trending steep foliations, flat foliations and regional strike-slip shear zones (Bouhallier et al., 1993; Chadwick et al., 2000; Chardon et al., 1996, 1998, 2008, 2011). The whole craton is affected by late-Archean shear deformation which is sub-contemporaneous with emplacement of juvenile plutons and granulite metamorphism that marks the terminal tectonic and thermal event in the central and eastern Dharwar craton (Jayananda et al., 1995, 2000; Moyen et al., 1997, Moyen et al., 2003b; Chardon and Jayananda, 2008; Chardon et al., 2002, 2008, 2011; Harish Kumar et al., 2003). The three micro-blocks show contrasted thermal histories; medium- to high-pressure assemblages (kyanite-garnet) in the western block; low-pressure and high to ultra-high temperature assemblages (sillimanite-orthopyroxene-spinel-quartz) in the central block, and low pressure and high-temperature (cordierite-sillimanite-andalusite-gedrite and cordierite-spinel) assemblages in the eastern block (Jayananda et al., 2013a). Texturally controlled *in-situ* monazite dating, Sm-Nd garnet-whole rock isochrons as well as SHRIMP U-Pb zircon ages reveal that the western block underwent an early thermal episode at ca. 3.1-3.0 Ga and a major thermal event close to 2.52 Ga, followed by slow cooling to ca. 2.4 Ga (Jayananda et al., 2013a, 2015). The central Dharwar was affected by thermal events at 3.20 Ga and ca. 2.62 Ga, followed by a major high-

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grade thermal imprint at ca. 2.54-2.51Ga with cooling up to 2.45 Ga (Jayananda et al., 2011; Peucat et al., 2013). The eastern Dharwar was involved in a widespread thermal event ca 2.52 and 2.51 Ga (Peucat et al., 2013). The distinct thermal records of these three blocks reflect their contrasting accretion histories and their response to late-Archean hot orogen (Chardon et al., 2011).

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### 3. Geology of the studied crustal corridor

The studied area consists of a ~40 km-long north-south crustal corridor adjoining to Sargur Group Nagamangala greenstone belt extending from Mayasandra in the north, through Bellur-Nagamangala to Pandavpura in the south (Fig.2). The dominant lithologies include TTG gneisses, Nagamangala greenstone belt, and potassic plutons. The TTGs mainly consist of medium to coarse grained dark grey tonalite, grey granodiorite, and whitish grey trondhjemite which were affected by strong deformation resulting in a fine banding.

The Nagamangala greenstone belt mainly consists of komatiites to komatiitic basalts, together with minor mafic volcanics and interlayered sediments such as quartzite, pelite, minor carbonate and BIFs (Devapriyan et al., 1994; Tushipokla and Jayananda, 2013). The preserved mineral assemblages correspond to greenschist to lower amphibolite facies conditions (Raase et al., 1986). The granite plutons are mainly found as intrusions either within TTG or along the contact zone between TTG and Nagamangala greenstone belt. Three plutonic bodies have been recognized based on their location and relationship with TTG basement and Nagamangala greenstone belt which include 1) plutons within the TTG basement to the west of greenstone belt 2) plutons in the western and eastern contact zone of the Nagamangala belt and 3) plutons to the south in Pandavpura region (Fig.2).

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#### Pluton within the TTG basement
West of Nagamangala greenstone belt, small discrete elliptical granite intrusions are sporadically distributed within the TTG basement. They consist of medium- to coarse-grained dark grey granodiorite and minor whitish grey leucocratic granite; both being cut by coarse-grained pegmatite dykes. The granodiorite occasionally appears as large rounded to pillowed enclave into the leucocratic granite (Fig. 3a); which points towards their contemporaneity.

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183 Plutons along the greenstone -TTG contact zone (Bellur-Nagamangala granites)

Bellur-Nagamangala plutons outcrop as elongated massifs or ground-level bouldery exposures which are affected by shear deformation. The deformation of the pluton is more intense along the shear zones or close to the contact with the Nagamangala greenstone belt.

Plutons in the western margin contain several facies (Fig. 3b), their field chronology reveals a multi-pulse emplacement, beginning by the intrusion of coarse-grained pinkish to grey porphyritic monzogranite together with highly coarse grained whitish grey monzogranite. This episode has been followed by the emplacement of dark grey quartz-monzonite, grey granodiorite and light grey granite. The coarse-grained whitish grey monzogranite and porphyritic pinkish grey facies are often found as rounded to angular enclaves into both quartz monzonite and granodiorite (Figs. 3c). Dykes of quartz-monzonite with biotite-rich rims are injected into coarse-grained the whitish monzogranite. Such biotite-rim indicates that monzogranite had already started crystallizing at the time of emplacement of quartz-monzonite and granodiorite dykes. Quartz-monzonite, granodiorite and granite often display magmatic flow fabrics (Fig.3d). Occasionally syn-plutonic mafic to intermediate dykes injected into the light pinkish monzogranite to whitish grey granite facies where they show mingling features (Fig.3e). Both dextral and sinistral shear bands traverse all the facies on the outcrop scale where magmatic fabrics are transposed into shear zones (Fig. 3f). In summary, plutons in the western margin, contains several facies which appear to be emplaced in successive pulses

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although their time interval may be small as they often show diffusive contacts and magmatic flow structures. Plutons in the eastern margin of the Nagamangala greenstone belt are more homogeneous and contain two main facies including coarse-grained pink and light grey granites. These two facies are often weakly porphyritic, and phenocrysts are stretched. In rare instances, very small biotite rich tiny enclaves (-15 cm) can be found in the granite. They show constrictional fabrics defining L-tectonics with strong horizontal stretching lineation in north-south direction (Fig. 3g).

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210 *Plutons in the south (Pandavpura region)*

The plutons in the south are found as sporadic intrusions into TTG gneisses along the western boundary of the Chitradurga greenstone belt (see fig.1). These intrusions contain three major facies including coarse-grained whitish grey porphyritic monzogranite, coarse-grained grey granodiorite and light grey granite. Fine-grained dismembered syn-plutonic mafic dykes are found in all the three facies where they frequently contain small rounded enclaves of whitish grey monzogranite (Fig.3h). These plutons are also affected by shear deformation as north-trending dextral and sinistral shear bands traverse different facies on the outcrop scale.

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219 **4. Sample description and petrography**

This paper is mainly focused on the plutons of both the western and the eastern margin of Nagamangala greenstone belt, which are widespread in the studied corridor (see fig.2).

Granodiorite plutons within the TTG gneisses are fine to medium grained and contain quartz, plagioclase (An₁₅-₂₂), microcline, biotite and, hornblende with rare primary magmatic epidote (Fig. 4a) and accessory zircon, apatite, allanite and opaque minerals.

Among the Bellur-Nagamangala plutons the monzogranites display coarse grained porphyritic to hypidiomorphic granular texture. They contain subhedral to euhedral quartz,

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microcline, plagioclase (An$_{13-18}$), biotite, together with minor bluish-green hornblende containing euhedral primary epidote inclusions (Fig.4b). The epidote is appearing to be an early crystallizing phase as it occurs as euhedral inclusions in hornblende. The common accessory phases are zircon, apatite, allanite, titanite and opaque minerals.

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Quartz-monzonite has a medium to coarse grained hypidiomorphic granular texture; it consists of subhedral to euhedral quartz, plagioclase (An$_{18-29}$), microcline, euhedral primary epidote crystals, bluish-green hornblende and biotite. Accessory phases are zircon, apatite, allanite and opaque minerals. Euhedral epidote crystals are locked as inclusions in biotite with frequent resorbing features that attests of its unstability (Fig.4c). Rarely large broken crystals of magmatic epidote appear as a rim all around allanite crystals.

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Granodiorites display medium grained hypidiomorphic granular texture with mineral assemblage including subhedral quartz, plagioclase (An$_{18-25}$), biotite as well as minor hornblende. Rare euhedral primary magmatic epidote can be found as inclusions in hornblende or biotite (Fig. 4d) whilst secondary anhedral epidote shows symplectic relationships with biotite. Hornblende is bluish-green which is unstable being rarely replaced by biotite. Further, it appears that late stage fluids reacted with hornblende and feldspars, which resulted in the development of secondary epidote.

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Granites in the eastern margin of Nagamangala greenstone belt show medium to coarse grained with hypidiomorphic granular to weakly porphyritic texture. They contain quartz, abundant microcline, minor plagioclase (An$_{10-14}$), biotite and occasional primary muscovite. Euhedral primary magmatic epidote often show resorbing features whilst anhedral secondary epidote show symplectic relationship with biotite. Primary epidote rarely forms a rim to allanite.

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The general texture of the studied plutons is often anisotropic due to shear deformation.

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Close to the shear zones, the grain size progressively decreases, which militates in favor of a
ductile deformation. Medium to fine grained quartz-monzonite and granodiorite often display bimodal grain size with large subhedral to euhedral quartz and feldspar crystals and small subhedral to euhedral quartz and K-feldspar crystals. Such features could be interpreted in terms of quench texture resulting of the rapid ascent and fast cooling of the pluton. Larger subhedral to euhedral quartz crystals also contradict slow cooling and substantiate rapid ascent of the magma, possibly as dykes into higher levels in the crust which could avoid complete resorption of epidote.

In summary these plutons contain primary magmatic epidote and show evidence for a rapid cooling.

The Pandavpura plutons are medium to coarse grained and show equigranular to porphyritic texture. They contain quartz, microcline, plagioclase (An12-17), biotite, rare hornblende with accessory zircon, titanite and opaque minerals.

Among the studied plutons nine samples were selected for zircon U-Pb geochronology whose petrographic characteristics are presented below.

## Sample MS05: Granodiorite

Sample MS05 collected from a small plutonic body intrusive into the TTG basement west of Nagamangala greenstone belt about 6 km west of Mayasandra village. The rock shows medium grained hypidiomorphic granular texture and contain quartz, plagioclase (An18-20), microcline (subordinate), biotite and minor hornblende with accessory zircon, apatite, titanite and opaques.

It contains euhedral primary magmatic epidote inclusions in hornblende. The magmatic epidote in turn contains inclusions of zircon (see fig.4a).

## Sample NM 04 - Granodiorite
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This sample is a granodiorite collected from a small intrusion in TTG basement about 4 km
southwest of Nagamangala town. It displays medium to fine grained hypidiomorphic texture,
where, due to deformation minerals are aligned into the foliation plane. It contains quartz,
plagioclase (An₁₈-₂₃), subordinate microcline, hornblende and biotite with accessory zircon,
apatite, titanite and Fe-Ti oxides.

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Sample AC01: Quartz monzonite

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Sample AC01 collected from an abandoned quarry close to Adichunchanagiri temple entrance gate in Bellur-Mayasandra road. The sample exhibits medium to coarse hypidiomorphic granular texture. It contains quartz, plagioclase (An₁₇-₂₃), microcline, primary epidote, bluish-green hornblende, biotite with accessory zircon, apatite, titanite and opaque minerals. Primary epidote found as euhedral crystals within hornblende. Primary epidote is often unstable and resorbed during emplacement.

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Sample BH 50c - Porphyritic monzogranite

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It is a coarse grained porphyritic monzogranite sampled from the western boundary of the Nagamangala greenstone belt that outcrops in the western outskirts of Nelligere village. The mineralogy includes quartz, plagioclase (An₁₅-₂₀), microcline, magmatic epidote (some grains could be secondary), hornblende, biotite with accessory zircon, allanite, titanite and Fe-Ti oxides. Magmatic epidote found as euhedral inclusions in hornblende and biotite. Constituent minerals show strong orientation but no evidence for grain size reduction as corroded boundaries not observed.

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Sample CHT2 – Pink granite
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Sample CHT 2 is a medium to coarse grained granite that shows bimodal grain size and
contains quartz, microcline, plagioclase (An10-12), biotite and traces of primary epidote.

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Quartz occur as large elongated grains (phenocrysts?) as well as fine grained aggregates.

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This could be either quench texture resulting by rapid emplacement and cooling of magmas
or resulted through progressive grain size reduction during deformation. Microcline is

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dominant over plagioclase. Biotite is the major ferromagnesian phase, which together with
few grains of primary epidote and accessory phases forms cluster. Zircon, apatite, allanite

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titanite and magnetite are common accessory minerals found as inclusions or interstitial
phases.

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Sample 5-J-5 – Light grey granodiorite

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The sample collected from a quarry along the western boundary of the Nagamangala
greenstone belt about 5 km north of Bellur in Mayasandra road. The sample show medium
grained hypidiomorphic granular texture; it consists in an assemblage of quartz, plagioclase
(An16-20), microcline, biotite with zircon, apatite, titanite and opaques as accessory phases.

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Sample 5-T48b – Pinkish monzogranite

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The sample collected in Yediyur-Mayasandra road close to the northern terminus of the pluton
in the eastern side of Nagamangala greenstone belt (about 6 km SE of Mayasandra). It is coarse
grained showing hypidiomorphic granular texture. The mineral assemblage include quartz,
plagioclase (An 14-18), microcline, small magmatic epidote crystal inclusions in biotite and
accessory phases like zircon, apatite, allanite, titanite and Fe-Ti oxides.

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324 *Sample PAN 01- Porphyritic monzogranite*

325 The sample is collected from an active quarry about 2 km southeast of Pandavpura town. It
326 shows coarse grained porphyritic texture with bimodal grain size. The mineral assemblage
327 include quartz, plagioclase (An15-18), biotite with accessory zircon, apatite, titanite and opaque
328 phases.

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330 *Sample PAN 02 – Quartz monzonite*

331 The sample collected in a large quarry about 3 km NE of Pandavpura town. It shows coarse
332 grained hypidiomorphic granular texture and contains quartz, plagioclase (An18-25),
333 hornblende, biotite with accessory zircon, apatite, titanite and opaque phases.

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335 **5. Analytical methods**

336 **5.1. Zircon U-Pb geochronology**

337 Zircon U-Pb isotope analyses were performed by secondary-ionization mass-spectrometry (SIMS) and by laser-ablation inductively-coupled-plasma mass-spectrometry (LA-ICP-MS).
338 SIMS analyses were carried out using the CAMECA 1270 ion microprobe at the CRPG,
339 CNRS-Nancy (http://www.crpg.cnrsnancy.fr/1270). Procedures are described in Deloule et al. (2002). Uncertainties for individual analyses (ratios and ages) are given at 1σ level, but the
340 uncertainties in calculated weighted mean ages are reported at 2σ. All ages were calculated
341 using the decay constants and isotopes abundance listed by Steiger and Jager (1977). Errors on
342 ages are quoted at 2σ and were calculated using the Isoplot program of Ludwig (2001).
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345 Zircon U-Pb geochronology by LA-ICP-MS was done at Laboratoire Magmas et
346 Volcans (LMV), Université de Clermont Auvergne, Clermont-Ferrand (France). Prior to
347 dating, zircon crystals were handpicked and mounted in epoxy. We selected the most euhedral,
348 pale pink and clear crystals with no or the least inclusions possible. Zircon crystals were further
polished to their approximate center and imaged by cathodoluminescence at Laboratoire Magmas et Volcans (LMV) using a Jeol JSM-5910LV scanning electron microscope. Images were acquired using an acceleration voltage of 15kV. The zircon internal textures were used to select the least radiation-damaged crystals and to determine the locus for U-Pb dating. We prioritized bright zones that show fine-oscillatory zoning as they correspond to pristine magmatic domain that are likely to reveal accurate crystallization ages (Corfu et al., 2003)

Operating conditions during the LA-ICP-MS analyses are given in **Table 1**. LA-ICP-MS analyses were conducted by standard-bracketing using the zircon standard 91500 (1065 Ma; Wiedenbeck et al., 1995) for external normalization. The zircon standards AS3 (1099 Ma; Paces and Miller, 1993) and Plesovice (337 Ma; Sláma et al., 2008) were further used for data quality control. Data were processed using GLITTER software package (Van Achtenberg et al., 2001) and further plotted using ISOPLOT version 3.75 (Ludwig, 2008). Semi-quantitative concentrations were also calculated from the measured signals by external normalization to 91500. U-Pb analyses gave a concordant age of 1092 ± 6 Ma (2σ; MSWD = 0.43; n = 13) and a weighted average ²⁰⁷Pb/²⁰⁶Pb age of 1092 ± 7 Ma (2σ; MSWD = 0.17; n = 15) for AS3, as well as a concordant age of 328 ± 6 Ma (2σ; MSWD = 1.8; n = 13) and a weighted average ²⁰⁷Pb/²⁰⁶Pb age of 335 ± 7 Ma (2σ; MSWD = 0.83; n = 13) for Plesovice. The obtained ages for zircon standards are, thus, in good agreement with consensus ages uncertainty-considered.

The average U, Th, and Pb concentrations obtained for AS3 were 256, 164 and 63 ppm, which are consistent with those measured in Paces and Miller (1993). The average U, Th, and Pb concentrations obtained for Plesovice were 585, 52 and 34 ppm, which are consistent with those measured in Wiedenbeck et al. (1995). Results for zircon standards are presented in **Table 3**.

## 5.2 Whole-rock major and trace element analyses
373

CHT and BH series samples were crushed using agate mill at Geosciences Rennes, Université de Rennes 1 (France) and analysed using Philips XRF, whereas all other samples were crushed in Japan using Agate mill and analysed for major and trace elements by using fully automated XRF (Rigaku RIX 3000) at centre of instrumental Analysis, Yamaguchi University by glass beads method (Li₂B₄O₇ as *spectromelt*). Details of analytical methods for major and trace elements using XRF at Rennes and Yamaguchi is already reported in Jayananda et al. (2006, 2008)

374

375

376

377

378

379

380

The full range of trace elements for CHT and BH samples were analysed by ICP-AES and ICP-MS, respectively at CRPG, Nancy with analytical procedures described at http://www.crpg.cnrs-nancy.fr/SARM. For trace elements, precision is better than 5%; for contents less than 30 ppm the uncertainties are within 10% and for elements with concentration less than 5 ppm uncertainty is in the range of 10–50%. Other samples were analysed by using Quadrupole ICP-MS at CSIR-National Geophysical Research Institute, Hyderabad. Analytical procedures for trace element analysis using ICP-MS are presented elsewhere (Satyanarayanan, et al., 2018).

381

382

383

384

385

386

387

388

389

## 5.2. Nd isotopes

390

391

392

393

394

395

396

Nd isotope compositions for whole-rocks were determined using a Finnigan Mat 262 mass spectrometer at Geosciences Rennes. Total blanks for Sm and Nd contents were lower than 0.05 ng. Uncertainties on ¹⁴⁷Sm/¹⁴⁴Nd ratios were estimated at 0.2%. Replicate analyses of La Jolla standard yielded a mean ¹⁴³Nd/¹⁴⁴Nd ratio of 0.511857 ± 3 in agreement with the consensus value. Details of analytical protocols for Sm-Nd separation, standards used, and instrumentation conditions are already presented in Jayananda et al. (2015). Epsilon Nd values were calculated using the CHUR values provided in Bouvier et al. (2008).
397 **6. Results:**

398 6.1. Zircon U-Pb geochronology

399 6.1.1. Sample MS-05

400 Zircon crystals from this sample show simple oscillatory zoning among studied samples.

401 However, many zircon grains are subhedral to round. Dark outer-rims are also present around
402 some crystals. A few zircon grains, show a core surrounded by an oscillatory-zoned outer part.

403 Most of the analysed crystals had modest U and Th contents below 200 and 100 ppm,
404 respectively. Th/U range from ~0.1 to 0.6, much like zircons from NM-04. Fig. 5a illustrates
405 the more complex nature of U-Pb data acquired on MS-05 zircon crystals than on other samples
406 studied herein (Table 3). Graphically, two discordia lines are defined by the data point which
407 is mirrored in the dichotomous distribution of ²⁰⁷Pb/²⁰⁶Pb ages. When most concordant zircons
408 are considered, two Concordia ages (Fig. 5a) are obtained: 3310 ± 10 Ma (2σ; MSWD = 0.039)
409 and 3210 ± 10 Ma (2σ; MSWD = 0.35). These ages both correspond to zones that exhibit fine
410 oscillatory zoning, and, in the light of internal textures, we interpret the former to correspond
411 to inherited cores and the latter as the age of crystallization of the rock.

412 6.1.2. Sample NM-04

413 Zircon crystals from NM-4 show simple oscillatory zoning that is not concentric in CL images.

414 Studied crystals were subhedral and slightly elongated (Fig. 5b). Most crystals have moderate
415 U and Th contents of 100-200 and 50-100 ppm, respectively. Th/U are lower than those seen
416 in zircons from other samples as they range from 0.1-0.7. Determined ²⁰⁷Pb/²⁰⁶Pb ages are
417 consistent between all crystals in spite of variable degrees of discordance (Table 3). When most
418 concordant analyses are considered, a concordia age of 3205 ± 8 Ma (2σ; MSWD = 0.69) is
419 obtained (n=3) (Fig. 5b) that dates this sample.

420

421 6.1.3. Sample AC01:
422

Zircon crystals have variable habits from roughly euhedral to xenomorphic (Fig. 5c). Internal textures are commonly complex with patches of bright domains within which partly distorted oscillatory zoning can be seen. Other domains appear either dark and homogeneous, or dark with broad zoning. The distribution of bright and dark domains gives the impression that original fine oscillatory zoning had been disturbed and that zircon partly recrystallized in places. Most zircon grains exhibit moderate to slightly elevated U and Th contents of 100-400 and 40-200 ppm, respectively (Table 3). These crystals show a large range of Th/U from 0.09 to 1.08 that correlate with the degree of discordance of U-Pb ages. U-Pb data are concordant to limitedly discordant and align along a single *discordia* line. The most concordant U-Pb data give a *discordia* age of 2981± 8 Ma (2σ; MSWD = 0.45; n = 4) that is interpreted as magmatic crystallization (Fig.5c).

423

424

425

426

427

428

429

430

431

432

433

### 6.1.4. Sample BH-50

434

435

436

437

438

439

440

441

442

443

444

445

446

Most zircon grains exhibit fine oscillatory zoning in BSE images (Fig. 5d). Some crystals have rounded cores surrounded by overgrowths. U and Th concentrations vary from low (e.g., <100 ppm for U) to moderate (e.g. ~300 ppm for U). U-Pb data define two major groups as illustrated by the data distribution in a concordia diagram (Fig. 5d). An older group with a weighted average $^{207}$Pb/$^{206}$Pb age of 3220 ± 10 Ma (2σ; MSWD = 4.5; n= 3; Fig. 5d) and a younger group that define a *discordia* line identical to that formed by CHT-2 zircons (Fig.6e) and that overall give an upper-intercept age of 2982 ± 11 Ma (2σ; MSWD = 5.; n = 9; see Fig. 5d). The older group corresponds to the cores identified whereas the younger group is found both in some oscillatory domains and in overgrowth around rounded cores. Th/U ratios vary from 0.2 to 1.8 and are broadly inversely correlated with determined $^{207}$Pb/$^{206}$Pb ages so that the lower and higher Th/U correspond to respectively the oldest and the youngest group. As a consequence, we interpret the youngest age (2982 ± 11 Ma) as that of crystallization of BH-50 given that oldest age corresponds to inherited cores.
447 6.1.5. Sample CHT-2

448 Zircon crystals are euhedral to subhedral and exhibit oscillatory zoning (Fig. 6e). They have
449 moderate to relatively high U and Th content (Table 2) as well as Th/U between 0.5 to 1.3. U-
450 Pb data are concordant to significantly discordant and essentially align along a single *discordia*
451 line (Fig. 5e). The most concordant data give a *discordia* age of 2989 ± 84 Ma (n = 2; MSWD
452 = 1.5), which is consistent with all ²⁰⁷Pb/²⁰⁶Pb ages but that of a discordant data point. We
453 interpret the *discordia* age to date the magmatic crystallization of CHT-2 sample.

454 6.1.6. Sample 5-J-5

455 Only few zircons were recovered from this sample and most of them showed advanced
456 radiation damage. Consequently, we analysed 5 zircon crystals but only present 4 analyses for
457 this sample, as one zircon contained measurable amounts of common Pb. Zircon crystals are
458 stubby to slightly elongated, generally euhedral and with simple oscillatory-zoning from core
459 to rim as revealed by CL images (Fig. 5f). Most zircon cores appear brighter than their
460 surrounding outer growths, though without visible truncation of the zoning. Darker growth
461 bands in CL images reveal that these crystals underwent advanced amorphization in places.
462 This is consistent with the fact that most crystals have U and Th concentrations slightly beyond
463 400 and 200 ppm, respectively, and the degree of discordance of the U-Pb ages increases with
464 increasing U and Th concentrations. In spite of these issues, all measured ²⁰⁷Pb/²⁰⁶Pb ages are
465 essentially consistent (Table 3), within error, with the least discordant data, which is explained
466 by the fact that all data points define a broadly simple *discordia* line that passes through the
467 origin (i.e., 0 Ma). If we use the least discordant U-Pb data, an age of 2974 ± 13 Ma (2σ; Fig.
468 5f) is obtained, which is identical to that of the least discordant zircon (Table 3; Fig.5f). We
469 purposely excluded the most discordant data in age calculation as they are known to reduce the
470 accuracy of age establishment in addition to possibly introduce noise in age calculation
471 (Guitreau and Blichert-Toft, 2014). Th/U range from 0.6 to 1.
472 6.1.7. Sample 5-T48b

473 Zircon crystals from this sample generally display fine oscillatory-zoning. They are stubby to
474 slightly elongated and have euhedral to subhedral shapes (Fig.5g). A very thin and bright rim
475 can be seen around most crystals and appear to be coating partly resorbed margins. Some
476 crystals have euhedral cores surrounded by a thin and uneven outer part it self-surrounded by
477 an outer growth that exhibit oscillatory zoning. U and Th concentrations in these zircon crystals
478 are almost all below 200 and 100 ppm, respectively, and Th/U ratios range from 0.5 to 1. All
479 determined 207Pb/206Pb ages are essentially consistent despite various degrees of discordance
480 (Table 3). This is accounted for by the fact that data points define a simple discordia line in a
481 plot that passes through 0 (Fig. 5g). The four most concordant data give a concordia age of
482 2984 ± 8 Ma (2σ; MSWD = 0.2; Fig. 5g) which we interpret as the crystallization age of this
483 sample.

484

485 6.1.8. <u>Sample PAN-01</u>

486 Zircon crystals are limitedly elongated, euhedral to slightly subhedral, and exhibit simple and
487 fine-oscillatory zoning. Some resorbed cores can be visible in some crystals as well as distorted
488 oscillatory zoning (Fig. 5h). Most zircon crystals have U concentrations below 200 ppm and
489 Th concentrations below 100 ppm thereby indicating that they likely underwent limited alpha-
500 decay damaging of their lattice which can significantly affect U-Pb isotope systematics (e.g.,
491 Guitreau et al., 2018). Th/U ratios displayed by PAN-01 zircons range from 0.5 to 1.
492 Determined U-Pb ages are fully concordant to limitedly discordant and very consistent between
493 all analysed crystals (Table 3). Data form a simple population in a Concordia plot (Fig. 5h)
494 with a calculated concordia age of 2598 ± 6 Ma (2σ; MSWD = 1.07; n = 13) that dates the rock
495 formation.

496
497 6.1.9. Sample PAN-02

498 Zircon crystals from PAN-02 are very similar to those from PAN-01 as they are limitedly
503 elongated, euhedral to subhedral, and exhibit simple and fine-oscillatory zoning. Core
500 resorption can be seen in some crystals, as well as distortion of fine oscillatory-zoning in
501 rounded cores (Fig. 5i). A few crystals also contain inclusions of small zircon (≤10 µm). Most
502 zircon crystals have U concentrations below 100 ppm and Th concentrations below 70 ppm.
503 Th/U ratios displayed by PAN-02 zircons range from 0.3 to 1.1. Determined U-Pb ages are
504 almost all fully concordant and very consistent with each other (Table 3). This simple
505 population gave a concordia age of 2608 ± 7 Ma (2σ; MSWD = 1.5; n = 11; Fig. 5i) indicative
506 of PAN-2 crystallization.
507

508

6.2. Whole rock geochemistry

509 Major and trace element data are presented in Table 4. All major element analyses were
510 recalculated on an anhydrous basis, with iron expressed as Fe₂O₃* = Fe₂O₃ + 1.111 FeO.

511

512 6.2.1. Major elements

513 The studied plutons display a wide range in SiO₂ contents (63.89 to 76.47 wt. %), with high
514 Na₂O+K₂O (average = x̄ = 8.12 wt. %), and high K₂O/Na₂O (typically>1 with x̄ = 1.08). Their
515 relative K-enrichment make them drastically different of the Archean TTGs into which they
516 intruded in the western Dharwar craton (Fig.6a). Another chemical characteristic of these rocks
517 is their moderately low (Fe₂O₃*+MnO+MgO+TiO₂; x̄ = 4.04 wt. %), which associated with
518 a very low Mg# ( x̄ = 0.28; Mg# = molecular Mg/(Mg+Fe)), points to their high degree of
519 differentiation. The magmatic suite is mainly made of monzogranite and followed by
520 granodiorite and minor syenogranite (Fig. 6b).
521

In the A/NK versus A/CNK diagram (Fig. 7; Shand, 1943), the studied granites fall into both the metaluminous and peraluminous fields.

522

523

In the normative Q-Ab-Or triangle, after Blundy (2001) and adapted from Tuttle and Bowen, (1958), the studied granites have compositions that plot close to the minima on the quartz-feldspar cotectic in an 'hydrous granitic system' for pressures ranging between 2 and 10 kb (Fig. 8).

524

525

526

527

On Harker binary diagram (Fig 9), all the major elements, except K₂O, are negatively correlated with SiO₂. As the content of SiO₂ can be higher than 76 wt.%, the negative correlation could be attributed to a sum effect. However, such an effect would affect all elements at the same degree, which is obviously not the case especially for K₂O that is positively correlated with SiO₂.

528

529

530

531

532

533

### 6.2.2. Trace elements

534

Most trace elements correlate with SiO₂ content, used here, as differentiation index (Fig. 10). On binary diagrams Rb and Ba (despite relative scattering of data) are positively correlated with SiO₂, whilst other elements such as Sr, Ni, Cr, V, Zr, Nb and Y display moderate to weak negative correlation. In all trace element versus SiO₂ plots, data always fall on a single straight trend and do not show any inflexed or broken line.

535

536

537

538

539

The ca. 3.2 Ga granodiorite samples contain moderate total REE (117-119 ppm), display moderately to strongly fractionated patterns (Fig. 11a) [(La/Yb)N = 13.75 -21.74] without any Eu anomalies (Eu/Eu* = 0.89-0.97). These patterns are similar to those of the associated TTGs except that they are HREE-richer (see fig. 11a) which could be attributed to absence of significant amounts of residual garnet during melting. The ca.3.0 Ga Bellur-Nagamangala granites exhibit large variations in REE abundances (total REE ranging from 101 to 826 ppm). No one REE shows strong correlation with SiO₂ but total REE roughly decrease

540

541

542

543

544

545
546

with increasing SiO$_2$. Based on the total REE contents the granites are divided into three groups: EE.

547

548

The group 1 corresponds to leucocratic pink to whitish grey granite facies which generally contain low to moderate ΣREE (101-179 ppm) contents and show moderate to strongly fractionated REE patterns [(La/Yb)$_N$ = 10.14-50.39)] with negative Eu (Eu/Eu*=0.28-0.65) anomalies (Fig. 11b).

549

550

551

552

The group 2 consists of coarse-grained to weakly porphyritic light pink monzonite. It has high ΣREE (205-392 ppm) contents and moderate to strongly fractionated REE patterns [(La/Yb$_N$) = 6.86 – 34.02] together with negative Eu (Eu/Eu*=0.35-0.61) anomalies (Fig. 11c).

553

554

555

The group 3 corresponds to medium- to coarse-grained quartz-monzonite with few samples of porphyritic grey monzonites. They have very high ΣREE contents (429-826 ppm). They show moderate to strongly fractionated REE patterns [((La/Yb)$_N$= 8.63 – 29.53] with strong negative Eu (Eu/Eu*=0.30-0.54) anomalies (Fig. 11d).

556

557

558

559

The ca. 2.6 Ga Pandavpura granites display high to very high total REE contents (479-689 ppm) with moderately fractionated REE patterns [(La/Yb)$_N$ = 5.88-9.89)] and strong negative Eu (Eu/Eu*= 0.10-0.11) anomalies (Fig. 11e).

560

561

562

When plotted in a (La/Yb)$_N$ versus Yb$_N$ diagram, the studied granites does not show any affinity with typical Archean TTG and plot in the field defined Phanerozoic calc-alkaline granitoids (Fig. 11f Martin, 1986). In summary, the granite REE patterns militate in favour of plagioclase fractionation during magmatic differentiation or as residual phase during the melting event. They also preclude any role played by, garnet in the source residue.

563

564

565

566

567

On primitive mantle (Sun and McDonough, 1989) normalized multi-element diagrams all the three groups of plutons (Fig. 11g-k) uniformly show negative anomalies of Ba, Sr, Nb, Ta, which appear consistent with the fractionation of plagioclase, ilmenite and/or rutile. Flat HREE

568

569
570

pattern together with slight positive Y anomalies preclude role of residual garnet during partial
melting of the source.

571

572

573

**6.3. Sm-Nd isotope geochemistry**

574

The analyzed granitoids display a relatively large range in ¹⁴⁷Sm/¹⁴⁴Nd (0.083-0.1413) and present-day ¹⁴³Nd/¹⁴⁴Nd (0.510354-0.511510; Table 5) and these two parameters are positively correlated. The slope of this correlation in a ¹⁴⁷Sm/¹⁴⁴Nd versus ¹⁴³Nd/¹⁴⁴Nd plot is 0.0195 ± 0.0015 (2σ) which corresponds to an age of 2953 ± 225 Ma (2σ). The large uncertainty on this slope is due to excess scatter around the correlation. If the two most dispersed data points are removed, the slope becomes 0.0196 ± 0.0008 which translates into an age of 2977 ± 115 Ma (2σ; Fig. 12a). Both ages mentioned above, though imprecise, are consistent with those determined by zircon U-Pb geochronology for samples CHT-2 and BH-50 that are part of the Sm-Nd correlation in Figure 12a. We have, therefore, calculated initial Nd isotope compositions at 3000 Ma and they show a range from 0.508659 ± 0.000005 (2σ) to 0.508774 ± 0.000004 (2σ), which correspond to respective εNd values of +0.5 ± 0.1 and -1.7 ± 0.1 (2σ).

575

576

577

578

579

580

581

582

583

584

585

586

587

It is interesting to note that initial Nd isotope compositions correlate with major and minor oxide concentrations such that ¹⁴³Nd/¹⁴⁴Nd(t) is negatively correlated with SiO₂ (Fig. 12b) and K₂O, for instance, and positively correlated with MgO, CaO, ZrO₂ and TiO₂.

588

589

590

591

592

593

594

In this study we have analyzed only 3.0 Ga plutons for Nd isotopic compositions and Sm-Nd isotope data presented in the **Table 5**. The analyzed samples show Nd model ages ranging 3379 Ma to 3183 Ma and εNd (T=3.0 Ga) ranging -2.0 to -0.7 except one sample showing +0.2 suggesting dominant crustal source with possible minor juvenile input in their genesis. These values are close to the values obtained for the TTG gneisses further west, in the eastern part of the Holenarsipur greenstone belt and immediately north in Tiptur-J.C.Pura region (Chardon, 1997).
595

596

**7. Discussion**

597

**7.1. Timing of potassic magmatism with respect to TTG accretion in Western Dharwar Craton (WDC)**

598

599

600

601

602

603

604

605

606

607

608

609

610

In the Western Dharwar craton, the TTG protoliths emplaced during three major episodes: ca. 3600 Ma, 3450-3300 Ma and 3200 Ma (Meen et al., 1992; Peucat et al., 1993; Iswar Kumar et al., 2013; Jayananda et al., 2015; Guitreau et al., 2017). Sporadic plutons with compositions transitional between TTG and potassic granites (e.g Chikmagalur granodiorite and other small intrusions west of Holenarsipur) dated ca. 3150 Ma correspond to the last juvenile magmatic event in this area, thus underlying the transition towards potassic magmatism started at ca. 3000 Ma. Samples NM04 and MS05 as well as the zircon cores of BH50 belong to this early magmatic history of the WDC ca. 3200 Ma which coincides with the emplacement of diapiric trondhjemites further west in Holenarsipur region (Jayananda et al., 2015). Samples PAN-1 and PAN-2 have younger crystallization ages of ca. 2.6 Ga, similar to other known potassic granites such as Arsikere-Banavara and Chitradurga granites located further to the north of the corridor (Jayananda et al., 2006).

611

612

613

614

615

616

617

618

619

The Bellur- Nagamangala granites yield zircon U-Pb ages of ca. 3000 Ma. These ages are similar to those of granite plutons outcropping immediately north in Tiptur region (Chardon, 1997) and Bukkapatna granite further north east (Chardon et al., 2011), Karwar granite (Iswar Kumar et al., 2013) and few discrete plutons in the north-western part of the Dharwar craton. Consequently, the ages presented in this paper, together with published data show that juvenile TTG accretion contributing to major crustal growth occurred in successive stages ca. 3.6 Ga, 3.45-3.3 Ga and 3.2 Ga (Jayananda et al., 2015; Guitreau et al., 2017) whilst potassic granite emplacement corresponding to episodes of crustal reworking took place at ca. 3.2-3.15 Ga, 3.0 Ga and 2.6 Ga. This contrasts with the central to eastern blocks of the Dharwar
craton where major outbursts of juvenile crust accretion and crustal reworking led to the
620
621
622
623
624

emplacement of sanukitoids as well as anatectic potassic granites during 2.56-2.52 Ga followed
625
626
627
628
629
630

by cratonization ca. 2.5 Ga (Moyen et al, 1997, 2001, 2003; Peucat et al., 1993; Chardon et al.,
2011; Jayananda et al., 1995, 2000; Dey et al., 2016).

7.2. Petrogenesis and sources
635
636
637
638
639
640

The major focus of this section is to address the petrogenetic history of 3.0 Ga Bellur-
641
642
643
644

Nagamangala plutons as most of the data presented in this paper refer to those plutons. On the
other hand, some observations on petrogenesis are also made on the 3.2 Ga and 2.6 Ga
intrusions.

7.2.1. 3.2 Ga Granodiorite
645
646
647
648
649
650

These granodiorites form sporadic intrusions within TTG basement to the west of
Nagamangala greenstone belt. They are metaluminous and plot within the main trend of 3.0
Ga plutons on Harker's binary plots, Ab-An-Or triangular plots (see Figs. 6 and 9). Their
moderately fractionated REE patterns are similar to TTG except that they with slightly higher
HREE together with low Cr/V ratios, preclude garnet in the melt residue. The REE patterns
without any Eu anomalies could be attributed to simultaneous crystallization of hornblende and
plagioclase. These granodiorites show a transitional character from TTG to high potassic
granites as reflected on (La/Yb)N vs. (Yb). In view of above arguments, it can be concluded
that the ca. 3.2 Ga granodiorite probably originated by melting of mafic crust under water
saturated conditions.
651
652
653
654
655
656
657
658
659
660
661
662
663
664

7.2.2. 3.0 Ga Bellur-Nagamangala plutons
665
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667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684

Field evidence for emplacement of granites as dykes/sheets together with rounded enclaves of
more felsic facies into intermediate to mafic facies with sharp to diffusive contacts and
mingling features show that felsic and intermediate facies interacted during crystallization and
645

emplacement. This is supplemented by the fact that all the facies have the same ca. 3.0 Ga age.

646

The whole rock geochemistry particularly correlations observed on Harker's binary plots
647 indicate that the plutons result of interaction (mixing and/or mingling) between two
648 components; one being SiO₂-rich whilst the other has intermediate composition. This behavior,
649 over a wide range of SiO₂ cannot be accounted for only by pure fractional crystallization
650 because changes in crystallizing phases usually lead to broken or curved trends. By contrast, a
651 process involving interaction, mixing and mingling of two end-member magmas undergoing
652 fractional crystallization is more likely responsible for such straight lines (Janousěk et al.,
653 2015). This is also evidenced by the fact that Nd isotope signatures calculated at 3.0 Ga
654 negatively correlate with SiO₂ content (Fig. 12b).

655

656

7.2.3 Felsic end-member

657

Field chronology indicate that felsic end member like whitish to light pink granite and
658 monzogranite emplaced during early in the magmatic history of 3.0 Ga plutons and possibly
659 generated by crustal melting in lower part of the middle crust under water saturated conditions
660 as revealed by Q-Ab-Or granite system (see Fig.8). Major and trace elements (Fig. 9 & 10)
661 clearly show that the felsic end-member has no TTG affinity but is rather granitic (felsic) in
662 composition. Similarly, the contacts between felsic and intermediate granitoids are often
663 rounded or lobated, demonstrating that they interacted while they were still liquid or better as
664 a magmatic mush (Barbarin and Didier, 1992; Hallot et al., 1996; Jayananda et al., 2009,2014).

658

659

660

661

662

663

664

665

On the other hand, many samples of the felsic end-member have A/CNK >1 but
666 normative corundum always lower than 1% (x̄ = 0.35%); they are metaluminous to
667 peraluminous. This characteristic precludes a possible origin entirely by melting of aluminium-
668 rich sediments, such as the kyanite-rich pelitic sediments exposed in the surrounding
669 Nagamangala greenstone belt. Consequently, a more realistic alternative scenario would be

668

667

668

669
670

direct partial melting of the TTG basement without or with small amounts of Al-rich sediments.

671

This would be consistent with Nd isotope signature of Peninsular gneisses further west and north as they would exhibit εNd between -0.6 and -3.7 at 3.0 Ga (Chardon, 1997; Jayananda et al., 2015).

672

673

674

Figure 11 shows that HREE patterns for all the three groups of the Bellur- Nagamangala granites are limitedly fractionated with an average (Gd/Yb)N = 0.62 – 2.62 (except one sample 3.38 and high YbN = 14.6. Contrastingly, TTGs have fractionated HREE: (Gd/Yb)N = >3.1 with low YbN = 3.0. Assuming that the felsic end-member is generated by partial melting of TTGs would preclude garnet as a residual phase as indicated by HREE and Y on multi-element diagrams. Indeed, the TTG source has low Yb content while the Bellur-Nagamangala granites have higher Yb contents, in other words, Yb should have behave as a strongly incompatible element. In felsic liquids, Kdgarnet/liquid Yb varies between 35 and 40, which results in a compatible behaviour of Yb. Therefore, a magmatic liquid in equilibrium with residual garnet will be depleted in Yb, whereas exactly the opposite is observed in the studied granites. Consequently, the felsic end-member could have been formed by partial melting of the TTG basement in the absence of garnet which, hence, indicate pressures lower than 12 kb which is the pressure of apparition of garnet in the TTG mafic source (Schmidt and Poli, 2004).

675

676

677

678

679

680

681

682

683

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In the Bellur- Nagamangala granites the average K2O content is 4.17 wt%, while it is only of 1.93 wt% in average TTG (Martin et al., 2005). So, potassium must have had an incompatible behaviour during TTG melting. Experimental melting of felsic rocks shows that biotite is one of the most frequent residual phase. Assuming a K2O content of 9.5 wt% in magmatic biotite, allows to fix a maximum degree for partial melting: it ranges from 46% for a biotite free residue down to 0% for a residue containing 20.3% biotite. Indeed, it is possible to overtake this limitation, by considering biotite incongruent melting, which result in the formation of a K2O-free new residual phase such as orthopyroxene.

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In summary, the SiO₂-rich component of the Bellur-Nagamangala granites is consistent with partial melting of the TTG basement at pressure lower than 12 kbars.

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7.2.4 Mafic to intermediate end-member for mixing/mingling

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The silica poorer quartz-monzonite to monzodiorite-dioritic samples of the Bellur-Nagamangala plutons contain abundant hornblende, which together with high REE and Nd isotopes (εNdτ = 0.2 to -0.4) point towards juvenile input from possibly enriched mantle. However, the lowest silica content (63.89 wt.%) of studied rocks together with their lower Mg# < 0.45 is not consistent with direct melting of the mantle. One way to reconcile these contradiction is to consider that the intermediate component corresponds to a mantle-derived melt that evolved through fractional crystallization and/or contamination within the continental crust. Consequently, we can reasonably assume a mantle origin for the SiO₂-poor component.

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Similar situation was proposed for the Closepet granite wherein the mantle derived magma have evolved through fractional crystallization (Moyen, 1997; Moyen et al., 2001). An alternative assumption would be that the intermediate compositions result from mixing with the felsic end-member. This latter hypothesis would be consistent with the near-CHUR Nd isotope signature of the intermediate end-member given that more depleted sources are known in the WDC (e.g., Dey, 2013).

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An important issue is that, except for K₂O, Rb and Ba, all elements negatively correlate with SiO₂. Consequently, the mafic end-member was already enriched in incompatible elements, which implies that its mantle source was also enriched. Alternatively, fractional crystallization of a mantle-derived melts, with possible crustal contamination, would also account for the enrichment of the mafic-intermediate end-member.

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7.2.5 Model for the origin of 3.0 Ga Bellur-Nagamangala plutons
Field evidence, petrographic characteristics together with elemental data reveal that the Bellur-Nagamangala plutons were generated 3.0 Ga ago by interaction between two contrasted end members: one being the mantle and the other the TTG basement. We propose that a mantle-derived magma emplaced into a hot TTG crust, with which it mixed and/or mingled. The heating of the crust could possibly result of the emplacement of the hotter mafic magmas. induced the melting of TTGs at lower crustal levels. Rough pressure estimates indicate that melting of the TTG crust likely occurred below pressures of 12 kb to account for the absence of garnet in the residue, but in the range of ~2 to 10 kb as shown by cotectic melts in a hydrous granite system (Fig. 8). This is further substantiated by the high-HREE and moderately to poorly fractionated REE patterns and 1/Er – (Ba+Sr)/1000-Er (Heilimo et al., 2010) triangular plot (Fig.13).

The presence of magmatic epidote in the studied granites allow us to constrain further the depth of melting and crystallization of these magmas. Indeed, the experimental work of Naney (1983) on crystallization sequence ingranodioritic magmas shows that at 2 kbar epidote did not crystallize whilst at 8 kbar under low water activity orthopyroxene formed. The, magmatic epidote and hornblende crystallized at 700-600°C with increasing H₂O activity Subsequent experimental work on melting and crystallization of epidote by Schmidt and Thompson (1996) indicates that epidote can be stable up to790°C and 10 kbar pressure but 50°C lower at higher pressures. Those authors also observed that minimum 5 kbar pressures required for magmatic epidote to crystallize. Primary magmatic epidote found as euhedral crystals within hornblende or poikilitically enclosed in hornblende indicates early crystallization epidote. Presence of epidote stable in a granitic magma points to a minimum pressure of 5 kbar corresponding to ~ 15 km depth. This conclusion is supported by the frequent presence of resorbed epidote, which indicates its crystallization at the limit of its stability field. We can therefore conclude that 3.0 Ga Bellur-Nagamangala granite magmas crystallized at pressure close to 5 kbars(i.e., 15 km)
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within the crust. However, magmatic epidote stability largely depends on temperature, pressure and water activity.

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In order to account for the above scenario, we consider the possibility of either spatial link between the eruption of voluminous komatiite and komatiitic basalts in Nagamangala greenstone belt (Tushipokla and Jayananda, 2013) or a link with an enriched mantle plume emplaced beneath the crust. In the first scenario voluminous ~3.15 Ga komatiite to komatiite basalt magmas might have caused heat advection and crust thickening through underplating as well as thermal blanketing of the uppermost crust through eruption. The high thermal flux initiated the melting of TTG basement, thus giving rise to the felsic end-member of the Bellur-Nagamangala granites. As the generated melts began to crystallize, shrinkage cracks developed to the mantle depth, causing low degree melting of the sub-continental mantle, which generated the enriched mafic magmas that penetrated the crystallizing granite melts, thereby, causing mixing and mingling. It is difficult to provide a satisfactory explanation for the large time gap (ca. 150 Ma) between the 3.15 Ga greenstone volcanism and emplacement of ca. 3.0 Ga granites. However, it should be noted that the uncertainty on the age for Banasandra komatiites is also 150 My. Consequently, the time gap may well be shorter than currently assumed. Alternatively, a 3.0 Ga mantle hotspot beneath the present exposure level of Bellur-Nagamangala can be considered. Such mantle hotspot probably stalled at greater depth as matured 3.3-3.15 Ga crust acted as thermal barrier. Continuous heating can cause low degree melting of sub-continental mantle which generates enriched mafic to intermediate magmas. These magmas upon their ascent into the lower crust can have induce partial melting of the surrounding crust. Both magmas interact, mix and mingle during their emplacement at higher levels as indicated by euhedral quartz/feldspars and magmatic epidote.

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## 7.3 Origin of 2.6 Ga Pandavpura granite
We have petrographic, U-Pb and elemental data for only two samples. These rocks show similar elemental compositions to that of 2.61 Ga Arsikere-Banavara granites found further north which have been attributed to lower crustal melting (Jayananda et al., 2006). The high-REE concentrations together with moderate to poorly fractionated REE patterns with strong negative Eu anomalies indicate crustal source. Their high HREE contents coupled with poorly fractionated REE patterns preclude any role of garnet in the melt residue. The above arguments suggest an origin for the Pandavpura granites by reworking of lower crust.

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### 7.4 Potassic granites as markers of crust-mantle interactions and cratonization in the WDC

As in almost all cratons (see, Laurent et al., 2014; Moyen et al., 2003) the potassic granites in the WDC correspond to the terminal event of crust genesis and craton building processes. They were partly generated by reworking of an older continental crust with minor mantle input. The TTGs in the western Dharwar craton formed 3600-3320 Ma ago, the last phase of TTGs emplaced at 3200 Ma. Immediately after, at 3150 Ma, sporadic transitional plutonic bodies were intruded, immediately followed at ca. 3080 Ma, by a high grade metamorphic event that is documented by texturally controlled in situ-monazite dating, discordant zircons with Pb-loss and metamorphic titanites (Banerjee et al., 2011; Jayananda et al., 2013, 2015).

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The 3.2 Ga granodiorite intrusion is spatially associated with terminal event of crust formation in the WDC. It possibly marks a first stage of reworking as they contain inherited zircon dated at 3.3 Ga. The 3.0 Ga plutons emplacement was preceded by the eruption of komatiites and komatiitic-basalts in the adjoining Nagamangala belt and further north in the Banasandra belt at 3.15 Ga (Jayananda et al., 2008; Tushipokla and Jayananda, 2013; Maya et al., 2017). This suggests that ca. 3.0Ga potassic granite magmatism corresponds to a major tectonothermal event at the end of TTG accretion and greenstone volcanism. The ca. 3.0 Ga potassic magmatism marks the end of the juvenile crust accretion cycle and marks the first
stage of cratonization of Archean crust in the WDCn. The second stage of reworking consisted
in the emplacement of ca. 2.62 Ga potassic granites in Arsikere-Banavara and further north in
Hosdurga and Chitradurga region. The ca. 2.6 Ga Pandavpura potassic plutons forms the
southern extension of Chitradurga and Hosdurga granites and corresponds to very end of
cratonization. The ca. 2.56-2.52 Ga widespread juvenile magmatism of sanukitoid affinity
(Martin et al., 2010) documented in the central and eastern cratonic blocks (Moyen et al.,
1997; Jayananda et al., 1995, 2000, 2018; Moyen et al., 2001, 2003) is totally absent in the
WDC marking the distinct crustal evolution patterns in the cratonic blocks.

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8. Conclusions

The conclusions of the present study can be summarized as follows:

1. The Bellur-Nagamangala-Pandavpura crustal corridor witness three main magmatic
events ca. 3.2 Ga, 3.0 Ga and 2.6 Ga.

2. The emplacement of 3.2 Ga granodiorite can correlated with 3.2 Ga diapiric
trondhjemites further west, which possibly corresponds to the end of juvenile crust
formation and first stage stabilization of the WDC.

3. Elemental and Nd isotope data in 3.0 Ga potassic granites suggest their origin by
melting of composite sources involving dominant TTG and minor enriched mantle.

4. Major and trace element data 2.6 Ga granites formed by crustal reworking of 1 TTG.

5. Magmatic epidote found in these granites points to their crystallization at about 5 kbars
prior to the emplacement at shallower levels.

6. Our new geochronological, elemental and Nd isotope data together with published data
show that the western Dharwar craton formed by successive stages of TTG-greenstone
accretion during 3.6-3.2 Ga and cratonized through reworking and intrusion of potassic
granites at 3.2 Ga, 3.0 Ga and 2.6 Ga.

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821 Acknowledgments:

822 This work initially financed by IFCPAR project 1111-A and continued by UGC funded project
823 (F-42-72/2013(SR) during 2013–2014). M.J acknowledge the support T. Kano (Yamaguchi
824 University) for major and trace element analysis and D. Chardon for discussions on the geology
825 of Dharwar craton over years. T.Tarun Thomas was financially supported by DST-INSPIRE
826 Fellowship for his PhD program. We are grateful for constructive reviews by Roberto
827 Dall’Agnol and Asko Kapyaho that helped to improve the quality of this contribution, together
828 with the good editorial handling by Sukanta Dey.

829 Martin Guitreau acknowledges financial support from ClerVolc, the Université Clermont
830 Auvergne, and the French Agence National de la Recherche through the funded research
831 project *Zircontinents*. This manuscript is ClerVolc contribution 317. Jean-Marc Hénot and
832 Jean-Luc Piro are thanked for technical assistance with CL imaging and LA-ICP-MS analyses
833 at LMV. Jean-Louis Paquette is thanked for kindly providing good quality epoxy.

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1016 Mohan, M.R., Sarma, D.S., Mc Naughton, N.J., Fletcher, I.R., Wilde, S.A., Siddiqui, M.H.,

1017 Rasmussen, B., Krapez, B., Gregory, C.J., Kamo, S.L., 2014. SHRIMP zircon and titanite U-
1018 Pb ages, Lu-Hf isotope signatures and geochemical constraints for 2.56 Gabgranite magmatism
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1020

1021 Moyen, J.-F. and Martin, H., 2012. Forty years of TTG research. Lithos, 148: 312-336.

1022 Moyen, J.-F., Martin, H. and Jayananda, M., 1997. Origine du granite fini-Archéen de Closepet
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1024 traces. Compte Rendus de l'Académie des Sciences de Paris, 325: 659-664.
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1026 crust-mantle interactions during late-Archaean crustal growth : the Closepet granite (South
1027 India). Precambrian Research, 112: 87-105.

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typology based on the Dharwar Craton (India). Precambrian Research, 127(1-3): 103-123.

1030 O'Connor, J.T., 1965. A classification for quartz-rich igneous rocks based on feldspar ratios.
1031 In: U.S. Geological Survey Professional Paper 525 (B)., pp. 79-84.

1032 Nutman, A.P., Chadwick, B., Krishna Rao, B., Vasudev, V.N., 1996. SHRIMP U/Pb zircon
1033 ages of acid volcanic rocks in the Chitradurga and Sandur groups, and granites adjacent
to the Sandur Schist belt, Karnataka. J. Geol. Soc. India 47, 153-164.
1034

1035 Paces, J.B., Miller Jr, J.D., 1993. Precise U-Pb ages of Duluth Complex and related mafic
intrusions, Northeastern Minnesota: geochronological insights to physical, petrogenetic,
1036 paleomagnetic, and tectonomagmatic processes associated with the 1.1 GaMidcontinent Rift
1037 System. J. Geophys. Res. 98, 13997-14013.
1038

1039 Peucat, J.-J., Mahabaleswar, M., Jayananda, M., 1993. Age of younger tonalitic magmatism
1040 and granulite metamorphism in the amphibolite-granulite transition zone of southern India
1041 (Krishnagiri area): comparison with older Peninsular gneisses of Gorur- Hassan area. Journal
1042 of Metamorphic Geology 11, 879-888.
1043

1043 Peucat, J-J., Bouhallier, H., Fanning, C.M., Jayananda, M., 1995. Age of Holenarsipur schist
1044 belt, relationships with the surrounding gneisses (Karnataka, south India). Journal of Geology
1045 103, 701-710.

1046 Peucat, J-J., Jayananda, M., Chardon, D., Capdevila, R., Fanning, Marc. C., Paquette, J-L., 2013.
1047 The lower crust of Dharwar craton, south India: Patchwork of Archean granulitic domains.
1048 Precambrian Research, 227, 4-29 http://dx.doi.org/10.1016/j.precamres.2012.06.009.
1049 Raase, P., Raith, M., Ackerman, D., Lal, R.K. 1986. Progressive metamorphism of mafic rocks from greenschist to granulite facies in the Dharwar craton of South India. Journal of Geology 94, 261-282.

1052 Ramakrishnan, M., Viswanatha, M.N., Swami Nath, J., 1976. Basement-cover relationships of Peninsular Gneisses with high grade schists and greenstone belts of southern Karnataka. J. Geol. Soc. India 17, 97-111.

1055 Roberts, N.M.W., Spencer, C.J. (2014) The zircon archive of continent formation through time. Geological Society of London Special Publications 389, 197-225.

1057 Rogers, J. J. W. and Callahan, E. J., 1989. Diapiric trondhjemites of the Western Dharwar craton, southern India. Canadian Journal of Earth Sciences, 26, 244-256.

1059 Satyanarayanan, M., Balaram, V., Sawant, S. S., Subramanyam, K. S. V., Vamsi Krishna, G., Dasaram, B., & Manikyamba, C. (2018). Rapid determination of REE, PGE, and other trace elements in geological and environmental materials by high resolution inductively coupled plasma mass spectrometry. Atomic Spectroscopy, 39(1), 1-15.

1063 Shand, S.J., 1943. Eruptive rocks. Their genesis, composition, classification and their relations to ore-deposits., New York, 444 pp.

1066 Sláma, J., J. Košler, D.J. Condon, J.L. Crowley, A. Gerdes, J.M. Hanchar, M.S.A. Horstwood, G.A. Morris, L. Nasdala, N. Norberg, U. Schaltegger, B. Schoene, M.N. Tubrett, and M.J. Whitehouse (2008), Plesovice zircon -- A new natural reference material for U-Pb and Hf isotopic microanalysis. Chem. Geol. 249, 1-35.

1070 Streckeisen, A., Le Maitre, R.W., 1979. A chemical approximation to the modal QAPF classification of the igneous rocks. N. Jahrb.Mineral. Abt. 136, 169-206.

1072 Swami Nath, J., Ramakrishnan, M., Viswanatha, M.N., 1976. Dharwar stratigraphic
1073 model and Karnataka craton evolution. Rec. Geol. Surv. India 107, 149-175.

1074

1075 Swami Nath, J., Ramakrishnan, M. (Eds.), 1981. Early Precambrian Supracrustals of Southern

1076 Karnataka. Geological Survey of India, Memoir 112, p. 350.

1077 Taylor, S.R. and McLennan, S.M. (1985). The continental crust: its composition and evolution.

1078 Blackwell Scientific Publications.

1079 Tushipokla., Jayananda, M., 2013. Geochemical constraints on komatiite volcanism from

1080 Sargur Group Nagamangala greenstone belt, western Dharwar craton, southern India:

1081 Implications for Mesoarchean mantle evolution and continental growth. Geoscience Frontiers,

1082 4, 321-340.

1083 Tuttle, O.F. and Bowen, N.L., 1958. Origin of granite in the light of experimental studies in

1084 the system NaAlSi₃O₈-KAlSi₃O₈-SiO₂-H₂O. The Geological Society of America Memoir, 74.

1085 Valley, J.W., Lackey, J.S., Cavose, A.J., Clenchencko, C.C. Spicuzza, M.J., Basei, M.A.S.,

1086 Bindeman, I.N., Ferreira, V.P., Sial, A.N., King, E.M., Peck, W.H., Peck, W.H., Sinha, A.K.,

1087 Wei, C.S.S. 2005. 4.4 billion years of crustal maturation :Oxygen isotope ratios of magmatic

1088 rocks. Contributions to Mineralogy and Petrology, 150, 561-580.

1089 Wiedenbeck, M., Hanchar, J.M., Peck, W.H., Sylvester, P., Valley, J., Whitehouse, M.,

1090 Kronz, A., Morishita, Y., Nasdala, L., Fiebig, J., Franchi, I., Girard, J.P., Greenwood,

1091 R.C., Hinton, R., Kita, N., Mason, P.R.D., Norman, M., Ogasawara, M., Piccoli, R.,

1092 Rhede, D., Satoh, H., Schulz-Dobrick, B., Skår, O., Spicuzza, M.J., Terada, K., Tindle,

1093 A., Togashi, S., Vennemann, T., Xie, Q., Zheng, Y.-F., 2004. Further characterization

1094 of the 91500 zircon crystal. Geostand. Geoanal. Res. 28, 9-39.

1095

1096
1097 Captions to figures and tables

1098

1099 Figure 1. Geological sketch map of the Dharwar craton (modified after Geological Survey of India, project Vasundeara)

1101

1102 Figure 2. Geological sketch map of the Bellur-Nagamangala region (Western Dharwar craton)
1103 modified after Geological Survey of India resource map (Mandya district, 2000).

1104

1105 Figure 3. Field photographs illustrating the outcropping conditions of the studied granites

1106

1107 Figure 4. Optical microscope images of thin section made on granites... showing the presence
1108 of euhedral epidote both as inclusions in biotite and hornblende, and as matrix minerals.

1109

1110 Figure 5. U-Pb concordia plot for the zircon crystals analyzed by SIMS and LA-ICP-MS. BSE
1111 and transmitted light images of some of the analyzed grains are also provided. See text for
1112 details.

1113

1114 Figure 6. (A) Normative An-Ab-Or diagram (Barker, 1979; O'Connor, 1965), showing that
1115 almost all of Bellur samples fall in the granite field. Their composition is very different from
1116 that of Archaean TTG. (B) Streckeisen and Le Maitre (1979) Q'-ANOR diagram showing
1117 the two parallel plutonic trends for the studied plutons. The fields are: To = tonalite; Tdh =
1118 trondhjemite; Gd = granodiorite; Gr = granite and CA = calc-alkaline trend (Barker and Arth,
1119 1976).

1120

1121 Figure 7. (A) A/NK vs. A/CNK molar diagram (Shand, 1943), where A/NK =
1122 Al₂O₃/(Na₂O+K₂O) and A/CNK = Al₂O₃/(CaO+Na₂O+K₂O) showing the metaluminous
1123 character of the Bellur granite;

1124

1125 Figure 8. CIPW normative Q-Ab-Or triangle (Blundy and Cashman, 2001), showing that the
1126 Bellur-Nagamangala granites plot near the minimum melt point of the 'hydrous granitic
1127 system' for pressures ranging between 2 and 10 kbar.

1128

1129 Figure 9. Harker's diagrams for major elements in the Bellur granites.

1130

1131 Figure 10. Harker's diagrams for trace elements in the Bellur granites.
1132

1133 Figure 11. (a-e) Chondrite normalized REE patterns, (f) (La/Yb)<sub>N</sub> vs. Yb<sub>N</sub> diagram showing that the Bellur granites do not have any affinity for Archaean TTG compositions (orange field)
1134 but rather for modern calc-alkaline magmas (green field); (Martin, 1986) and (g-k) primitive
1135 mantle normalized multi-element diagram for the studied plutons. Shaded area in the REE and
1136 Spider diagram represents TTGs of the studied corridor.
1137

1138

1139 Figure 12. (A) <sup>147</sup>Sm/<sup>144</sup>Nd vs. <sup>143</sup>Nd/<sup>144</sup>Nd plot showing a positive correlation which translates into an age of 2953 ± 225 Ma (2σ), or 2977 ± 115 Ma, when black-filled circles are excluded.
1140 (B) <sup>143</sup>Nd/<sup>144</sup>Nd and εNd calculated at 3.0 Ga as a function of SiO<sub>2</sub> concentration showing a
1141 broad negative correlation for the studied granites. See text for details.
1142

1143

1144 Fig. 13. 1/Er – (Ba+Sr)/1000 – Er triangular plot (Heilimo et al., 2010) depicting absence of
garnet in melt residue of the source.
1145

1146

1147 Table 1. LA-ICP-MS operating conditions

1148

1149 Table 2. Results for zircon U-Pb analysis by SIMS

1150

1151 Table 3. Results for zircon U-Pb analysis by LA-ICP-MS

1152

1153 Table 4. Major and trace element results for the studied granites

1154

1155 Table 5. Results for whole-rock Sm-Nd isotope measurements by TIMS
<figure><img src="image_2.png" /><figcaption>Table 1: LA-ICP-MS operating conditions</figcaption></figure>

<table><tr><td>Analysis</td><td>U-Pb geochronology</td></tr><tr><td>Laboratory</td><td>Université Clermont Auvergne</td></tr><tr><td>ICP-MS model</td><td>Thermo Element XR</td></tr><tr><td>Forward Power</td><td>1300 W</td></tr><tr><td>Auxiliary gas (Ar)</td><td>~1.0 l/min</td></tr><tr><td>Ar sample</td><td>~0.7 l/min</td></tr><tr><td>Oxide ThO/Th</td><td>~0.5-1.5%</td></tr><tr><td>Additional gas</td><td>N2</td></tr><tr><td>Additional gas flow</td><td>7.0 ml/min</td></tr><tr><td>SQUID</td><td>On</td></tr><tr><td>Laser model</td><td>Resonetics Resolution M-50</td></tr><tr><td>Wavelength</td><td>193 nm</td></tr><tr><td>Pulse duration</td><td>&lt;4 ns</td></tr><tr><td>Energy</td><td>~2.8 mJ</td></tr><tr><td>Fluence</td><td>2.5-2.6 J/cm2</td></tr><tr><td>Frequency</td><td>4 Hz</td></tr><tr><td>Spot size</td><td>33 µm</td></tr><tr><td>Carrier gas</td><td>He</td></tr><tr><td>Carrier gas flow</td><td>~0.7 l/min</td></tr><tr><td>Data acquisition</td><td></td></tr><tr><td>Protocol</td><td>Time resolved analysis</td></tr><tr><td>Scanning mode</td><td>Peak-jumping</td></tr><tr><td>Dwell time per isotope</td><td>5 ms</td></tr><tr><td>Settling time</td><td>20 µs</td></tr><tr><td>Background counting time</td><td>20 s</td></tr><tr><td>Sample measurement time</td><td>60 s</td></tr><tr><td>Measurement type</td><td>Standard bracketing</td></tr><tr><td>External standard</td><td>91500, AS3, Plešovice</td></tr><tr><td>Masses measured</td><td>204, 206, 207, 208, 232, 238</td></tr></table>
<figure><img src="image_3.png" /><figcaption>Table 2: Results for zircon U-Pb analysis by SIMS</figcaption></figure>

<table><thead><tr><th rowspan="2">Grain. spot</th><th rowspan="2">U (ppm)</th><th rowspan="2">Th (ppm)</th><th rowspan="2">Pb* (ppm)</th><th rowspan="2">Th/U</th><th colspan="5">Isotopic ratios</th></tr><tr><th><sup>204</sup>Pb/<br/><sup>206</sup>Pb</th><th>f<sub>206</sub><br/>%</th><th><sup>206</sup>Pb/<br/><sup>238</sup>U</th><th>±</th><th><sup>207</sup>Pb/<br/><sup>235</sup>U</th><th>±</th><th><sup>207</sup>Pb/<br/><sup>206</sup>Pb</th></tr></thead><tbody><tr><td colspan="11"><strong>Zircon CHT2*:</strong> deformed porphyroide granite in the Chitradurga SZ (Nelligere, W. Kunigal) (L tecto</td></tr><tr><td>1.1</td><td>426</td><td>569</td><td>213</td><td>1.34</td><td>0.000003</td><td>0.000</td><td>0.580</td><td>0.015</td><td>17.74</td><td>0.47</td><td>0.2214</td></tr><tr><td>2.1</td><td>453</td><td>234</td><td>132</td><td>0.52</td><td>0.000011</td><td>0.001</td><td>0.339</td><td>0.010</td><td>10.13</td><td>0.29</td><td>0.2163</td></tr><tr><td>2.2</td><td>270</td><td>161</td><td>93</td><td>0.60</td><td>0.000082</td><td>0.008</td><td>0.399</td><td>0.010</td><td>12.01</td><td>0.29</td><td>0.2189</td></tr><tr><td>3.1</td><td>746</td><td>530</td><td>261</td><td>0.71</td><td>0.000037</td><td>0.004</td><td>0.407</td><td>0.024</td><td>11.62</td><td>0.68</td><td>0.2072</td></tr><tr><td>4.1</td><td>225</td><td>187</td><td>107</td><td>0.83</td><td>0.000006</td><td>0.001</td><td>0.552</td><td>0.008</td><td>16.98</td><td>0.26</td><td>0.2230</td></tr><tr><td>5.1</td><td>114</td><td>98</td><td>59</td><td>0.86</td><td>0.000018</td><td>0.002</td><td>0.595</td><td>0.012</td><td>18.14</td><td>0.36</td><td>0.2209</td></tr><tr><td colspan="11"><strong>Zircon BH50*:</strong> undeformed porphyroide granite, W of the Chitradurga SZ (Nelligere, W. Kunigal)</td></tr><tr><td>1.1</td><td>57</td><td>46</td><td>32</td><td>0.80</td><td>0.000029</td><td>0.003</td><td>0.654</td><td>0.008</td><td>23.16</td><td>0.30</td><td>0.2565</td></tr><tr><td>2.1</td><td>57</td><td>22</td><td>30</td><td>0.38</td><td>0.000022</td><td>0.002</td><td>0.619</td><td>0.010</td><td>20.81</td><td>0.34</td><td>0.2435</td></tr><tr><td>3.1</td><td>118</td><td>101</td><td>57</td><td>0.85</td><td>0.000027</td><td>0.003</td><td>0.559</td><td>0.011</td><td>16.96</td><td>0.34</td><td>0.2198</td></tr><tr><td>4.1</td><td>98</td><td>176</td><td>39</td><td>1.79</td><td>0.000037</td><td>0.004</td><td>0.458</td><td>0.023</td><td>14.07</td><td>0.71</td><td>0.2226</td></tr><tr><td>5.1</td><td>399</td><td>225</td><td>212</td><td>0.56</td><td>0.000006</td><td>0.001</td><td>0.619</td><td>0.008</td><td>21.80</td><td>0.28</td><td>0.2553</td></tr><tr><td>6.1</td><td>139</td><td>68</td><td>54</td><td>0.49</td><td>0.000083</td><td>0.008</td><td>0.451</td><td>0.006</td><td>13.65</td><td>0.18</td><td>0.2200</td></tr><tr><td>7.1</td><td>44</td><td>51</td><td>21</td><td>1.16</td><td>0.000026</td><td>0.003</td><td>0.568</td><td>0.007</td><td>17.23</td><td>0.23</td><td>0.2193</td></tr><tr><td>8.1</td><td>280</td><td>65</td><td>121</td><td>0.23</td><td>0.000124</td><td>0.012</td><td>0.504</td><td>0.011</td><td>16.22</td><td>0.37</td><td>0.2344</td></tr><tr><td>9.1</td><td>322</td><td>198</td><td>173</td><td>0.61</td><td>0.000144</td><td>0.014</td><td>0.625</td><td>0.012</td><td>21.79</td><td>0.44</td><td>0.2541</td></tr><tr><td>10.1</td><td>328</td><td>134</td><td>168</td><td>0.41</td><td>0.000007</td><td>0.001</td><td>0.597</td><td>0.011</td><td>21.01</td><td>0.37</td><td>0.2552</td></tr></tbody></table>
<table><thead><tr><th colspan="2"></th><th colspan="8">Ages (in Ma)</th></tr><tr><th>±</th><th>r</th><th><sup>206</sup>Pb/<br><sup>238</sup>U</th><th>±</th><th><sup>207</sup>Pb/<br><sup>235</sup>U</th><th>±</th><th><sup>207</sup>Pb/<br><sup>206</sup>Pb</th><th>±</th><th>Conc.<br>%</th></tr></thead></table>

nite, horizontal lineation)

<table><tr><td>0.0008</td><td>0.99</td><td>2951</td><td>62</td><td>2975</td><td>25</td><td>2992</td><td>6</td><td>99</td></tr><tr><td>0.0003</td><td>1.00</td><td>1884</td><td>46</td><td>2446</td><td>26</td><td>2954</td><td>2</td><td>64</td></tr><tr><td>0.0003</td><td>1.00</td><td>2166</td><td>45</td><td>2606</td><td>23</td><td>2967</td><td>2</td><td>73</td></tr><tr><td>0.0011</td><td>1.00</td><td>2202</td><td>108</td><td>2574</td><td>53</td><td>2882</td><td>8</td><td>76</td></tr><tr><td>0.0005</td><td>0.99</td><td>2833</td><td>35</td><td>2934</td><td>15</td><td>3004</td><td>4</td><td>94</td></tr><tr><td>0.0006</td><td>0.99</td><td>3012</td><td>47</td><td>2997</td><td>19</td><td>2987</td><td>4</td><td>101</td></tr><tr><td>0.0005</td><td>0.99</td><td>3242</td><td>33</td><td>3234</td><td>13</td><td>3228</td><td>3</td><td>100</td></tr><tr><td>0.0012</td><td>0.95</td><td>3105</td><td>38</td><td>3130</td><td>16</td><td>3146</td><td>8</td><td>99</td></tr><tr><td>0.0007</td><td>0.99</td><td>2862</td><td>45</td><td>2932</td><td>19</td><td>2981</td><td>5</td><td>96</td></tr><tr><td>0.0010</td><td>1.00</td><td>2429</td><td>101</td><td>2754</td><td>47</td><td>3002</td><td>7</td><td>81</td></tr><tr><td>0.0003</td><td>0.99</td><td>3105</td><td>31</td><td>3175</td><td>12</td><td>3220</td><td>2</td><td>96</td></tr><tr><td>0.0004</td><td>0.99</td><td>2398</td><td>26</td><td>2726</td><td>12</td><td>2978</td><td>3</td><td>81</td></tr><tr><td>0.0004</td><td>0.99</td><td>2900</td><td>31</td><td>2948</td><td>13</td><td>2981</td><td>3</td><td>97</td></tr><tr><td>0.0008</td><td>0.98</td><td>2632</td><td>48</td><td>2890</td><td>22</td><td>3075</td><td>6</td><td>86</td></tr><tr><td>0.0006</td><td>0.99</td><td>3130</td><td>49</td><td>3174</td><td>19</td><td>3202</td><td>4</td><td>98</td></tr><tr><td>0.0002</td><td>1.00</td><td>3016</td><td>43</td><td>3139</td><td>17</td><td>3218</td><td>1</td><td>94</td></tr></table>
<table><caption>Table 3: Results for zircon U-Pb analysis by LA-ICP-MS</caption><thead><tr><th rowspan="2">Name</th><th colspan="6">Isotopic ratios</th><th colspan="2">Age (Ma)</th></tr><tr><th>Pb207/U235 2σ</th><th>Pb206/U238 2σ</th><th>Rho</th><th>Pb207/Pb206 2σ</th><th>Pb207/U235 2σ</th><th>Pb206/U238 2σ</th><th></th><th></th></tr></thead><tbody><tr><td colspan="10"><strong>PAN-01</strong></td></tr><tr><td>PAN-01_1b</td><td>12.22</td><td>0.24</td><td>0.505</td><td>0.010</td><td>0.97</td><td>0.1755</td><td>0.0018</td><td>2622</td><td>18</td><td>2635</td><td>41</td></tr><tr><td>PAN-01_2</td><td>10.93</td><td>0.23</td><td>0.452</td><td>0.009</td><td>0.91</td><td>0.1754</td><td>0.0020</td><td>2517</td><td>20</td><td>2403</td><td>39</td></tr><tr><td>PAN-01_8a</td><td>11.97</td><td>0.23</td><td>0.497</td><td>0.009</td><td>0.96</td><td>0.1747</td><td>0.0018</td><td>2602</td><td>18</td><td>2601</td><td>40</td></tr><tr><td>PAN-01_8b</td><td>11.90</td><td>0.23</td><td>0.496</td><td>0.009</td><td>0.96</td><td>0.1740</td><td>0.0018</td><td>2596</td><td>19</td><td>2596</td><td>40</td></tr><tr><td>PAN-01_8c</td><td>11.81</td><td>0.23</td><td>0.494</td><td>0.009</td><td>0.97</td><td>0.1733</td><td>0.0018</td><td>2589</td><td>18</td><td>2589</td><td>40</td></tr><tr><td>PAN-01_8d</td><td>11.86</td><td>0.23</td><td>0.495</td><td>0.009</td><td>0.97</td><td>0.1736</td><td>0.0018</td><td>2593</td><td>18</td><td>2594</td><td>40</td></tr><tr><td>PAN-01_10a</td><td>12.06</td><td>0.24</td><td>0.499</td><td>0.009</td><td>0.96</td><td>0.1753</td><td>0.0018</td><td>2609</td><td>19</td><td>2609</td><td>41</td></tr><tr><td>PAN-01_10b</td><td>10.92</td><td>0.21</td><td>0.466</td><td>0.009</td><td>0.97</td><td>0.1700</td><td>0.0018</td><td>2516</td><td>18</td><td>2466</td><td>39</td></tr><tr><td>PAN-01_11c</td><td>11.33</td><td>0.24</td><td>0.469</td><td>0.009</td><td>0.96</td><td>0.1752</td><td>0.0018</td><td>2551</td><td>18</td><td>2479</td><td>41</td></tr><tr><td>PAN-01_13a</td><td>12.39</td><td>0.25</td><td>0.515</td><td>0.010</td><td>0.94</td><td>0.1744</td><td>0.0019</td><td>2635</td><td>19</td><td>2680</td><td>41</td></tr><tr><td>PAN-01_13b</td><td>11.77</td><td>0.24</td><td>0.487</td><td>0.009</td><td>0.96</td><td>0.1753</td><td>0.0019</td><td>2586</td><td>19</td><td>2557</td><td>41</td></tr><tr><td>PAN-01_14a</td><td>11.75</td><td>0.23</td><td>0.487</td><td>0.009</td><td>0.96</td><td>0.1751</td><td>0.0018</td><td>2585</td><td>18</td><td>2557</td><td>40</td></tr><tr><td>PAN-01_15</td><td>11.31</td><td>0.23</td><td>0.475</td><td>0.009</td><td>0.95</td><td>0.1724</td><td>0.0018</td><td>2549</td><td>19</td><td>2508</td><td>39</td></tr><tr><td>PAN-01_16c</td><td>11.94</td><td>0.24</td><td>0.496</td><td>0.009</td><td>0.94</td><td>0.1744</td><td>0.0019</td><td>2599</td><td>19</td><td>2598</td><td>41</td></tr><tr><td>PAN-01_19</td><td>11.98</td><td>0.24</td><td>0.497</td><td>0.009</td><td>0.94</td><td>0.1747</td><td>0.0019</td><td>2603</td><td>19</td><td>2602</td><td>40</td></tr><tr><td>PAN-01_20</td><td>11.95</td><td>0.24</td><td>0.496</td><td>0.009</td><td>0.94</td><td>0.1746</td><td>0.0019</td><td>2600</td><td>19</td><td>2597</td><td>40</td></tr><tr><td>PAN-01_28a</td><td>11.55</td><td>0.24</td><td>0.475</td><td>0.009</td><td>0.93</td><td>0.1765</td><td>0.0019</td><td>2569</td><td>19</td><td>2505</td><td>39</td></tr><tr><td>PAN-01_28b</td><td>11.78</td><td>0.23</td><td>0.494</td><td>0.009</td><td>0.95</td><td>0.1731</td><td>0.0018</td><td>2587</td><td>19</td><td>2587</td><td>40</td></tr><tr><td>PAN-01_33a</td><td>11.45</td><td>0.23</td><td>0.465</td><td>0.009</td><td>0.93</td><td>0.1788</td><td>0.0019</td><td>2561</td><td>19</td><td>2460</td><td>39</td></tr><tr><td>PAN-01_33b</td><td>11.85</td><td>0.24</td><td>0.495</td><td>0.009</td><td>0.94</td><td>0.1736</td><td>0.0019</td><td>2593</td><td>19</td><td>2593</td><td>40</td></tr><tr><td>PAN-01_35</td><td>12.10</td><td>0.24</td><td>0.508</td><td>0.010</td><td>0.94</td><td>0.1725</td><td>0.0018</td><td>2612</td><td>19</td><td>2650</td><td>41</td></tr><tr><td>PAN-01_36a</td><td>11.75</td><td>0.24</td><td>0.489</td><td>0.009</td><td>0.93</td><td>0.1743</td><td>0.0019</td><td>2584</td><td>19</td><td>2565</td><td>40</td></tr><tr><td>PAN-01_36b</td><td>12.02</td><td>0.24</td><td>0.498</td><td>0.009</td><td>0.93</td><td>0.1750</td><td>0.0019</td><td>2606</td><td>19</td><td>2606</td><td>40</td></tr><tr><td colspan="10"><strong>PAN-02</strong></td></tr><tr><td>PAN-02_1</td><td>12.10</td><td>0.24</td><td>0.501</td><td>0.010</td><td>0.96</td><td>0.1750</td><td>0.0018</td><td>2612</td><td>19</td><td>2620</td><td>41</td></tr><tr><td>PAN-02_2</td><td>12.01</td><td>0.23</td><td>0.500</td><td>0.009</td><td>0.97</td><td>0.1741</td><td>0.0018</td><td>2605</td><td>18</td><td>2614</td><td>41</td></tr><tr><td>PAN-02_7</td><td>11.77</td><td>0.23</td><td>0.490</td><td>0.009</td><td>0.97</td><td>0.1740</td><td>0.0018</td><td>2586</td><td>18</td><td>2573</td><td>40</td></tr><tr><td>PAN-02_8</td><td>12.18</td><td>0.25</td><td>0.504</td><td>0.010</td><td>0.94</td><td>0.1752</td><td>0.0019</td><td>2618</td><td>19</td><td>2632</td><td>42</td></tr><tr><td>PAN-02_14</td><td>11.93</td><td>0.23</td><td>0.496</td><td>0.009</td><td>0.97</td><td>0.1744</td><td>0.0018</td><td>2599</td><td>18</td><td>2597</td><td>41</td></tr><tr><td>PAN-02_17a</td><td>11.62</td><td>0.23</td><td>0.482</td><td>0.009</td><td>0.96</td><td>0.1750</td><td>0.0018</td><td>2575</td><td>19</td><td>2535</td><td>40</td></tr><tr><td>PAN-02_18</td><td>12.16</td><td>0.24</td><td>0.506</td><td>0.010</td><td>0.97</td><td>0.1745</td><td>0.0018</td><td>2617</td><td>18</td><td>2638</td><td>41</td></tr><tr><td>PAN-02_19</td><td>12.42</td><td>0.24</td><td>0.512</td><td>0.010</td><td>0.97</td><td>0.1760</td><td>0.0018</td><td>2637</td><td>18</td><td>2664</td><td>41</td></tr><tr><td>PAN-02_20a</td><td>12.02</td><td>0.24</td><td>0.502</td><td>0.010</td><td>0.96</td><td>0.1737</td><td>0.0018</td><td>2606</td><td>19</td><td>2621</td><td>41</td></tr><tr><td>PAN-02_20b</td><td>12.16</td><td>0.24</td><td>0.509</td><td>0.010</td><td>0.97</td><td>0.1732</td><td>0.0018</td><td>2618</td><td>18</td><td>2653</td><td>41</td></tr><tr><td>PAN-02_21</td><td>12.12</td><td>0.24</td><td>0.500</td><td>0.009</td><td>0.97</td><td>0.1758</td><td>0.0018</td><td>2614</td><td>18</td><td>2613</td><td>41</td></tr><tr><td>PAN-02_23a</td><td>12.04</td><td>0.24</td><td>0.507</td><td>0.010</td><td>0.97</td><td>0.1723</td><td>0.0018</td><td>2607</td><td>18</td><td>2642</td><td>42</td></tr><tr><td>PAN-02_23b</td><td>12.01</td><td>0.24</td><td>0.502</td><td>0.010</td><td>0.97</td><td>0.1735</td><td>0.0018</td><td>2606</td><td>19</td><td>2623</td><td>41</td></tr><tr><td>PAN-02_24</td><td>12.11</td><td>0.24</td><td>0.499</td><td>0.009</td><td>0.96</td><td>0.1758</td><td>0.0018</td><td>2613</td><td>19</td><td>2611</td><td>41</td></tr><tr><td>PAN-02_26a</td><td>12.15</td><td>0.25</td><td>0.504</td><td>0.010</td><td>0.93</td><td>0.1747</td><td>0.0019</td><td>2616</td><td>19</td><td>2633</td><td>41</td></tr><tr><td>PAN-02_26b</td><td>12.17</td><td>0.25</td><td>0.502</td><td>0.010</td><td>0.95</td><td>0.1758</td><td>0.0019</td><td>2617</td><td>19</td><td>2622</td><td>41</td></tr><tr><td>PAN-02_27b</td><td>11.81</td><td>0.24</td><td>0.489</td><td>0.009</td><td>0.94</td><td>0.1752</td><td>0.0019</td><td>2589</td><td>19</td><td>2566</td><td>40</td></tr><tr><td colspan="10"><strong>5-J-5</strong></td></tr><tr><td>5-J-5_3</td><td>8.65</td><td>0.17</td><td>0.298</td><td>0.006</td><td>0.94</td><td>0.2103</td><td>0.0022</td><td>2302</td><td>18</td><td>1683</td><td>28</td></tr><tr><td>5-J-5_7</td><td>9.68</td><td>0.19</td><td>0.310</td><td>0.006</td><td>0.94</td><td>0.2264</td><td>0.0024</td><td>2404</td><td>19</td><td>1740</td><td>29</td></tr><tr><td>5-J-5_15</td><td>17.16</td><td>0.35</td><td>0.568</td><td>0.011</td><td>0.93</td><td>0.2191</td><td>0.0024</td><td>2944</td><td>20</td><td>2899</td><td>44</td></tr><tr><td>5-J-5_19</td><td>14.25</td><td>0.29</td><td>0.473</td><td>0.009</td><td>0.94</td><td>0.2187</td><td>0.0024</td><td>2767</td><td>19</td><td>2495</td><td>39</td></tr><tr><td colspan="10"><strong>5-T48b</strong></td></tr><tr><td>5-T48b_3</td><td>14.44</td><td>0.28</td><td>0.476</td><td>0.009</td><td>0.96</td><td>0.2198</td><td>0.0023</td><td>2779</td><td>19</td><td>2511</td><td>39</td></tr><tr><td>5-T48b_7</td><td>17.98</td><td>0.36</td><td>0.592</td><td>0.011</td><td>0.95</td><td>0.2204</td><td>0.0023</td><td>2989</td><td>19</td><td>2996</td><td>45</td></tr><tr><td>5-T48b_8a</td><td>17.95</td><td>0.36</td><td>0.592</td><td>0.011</td><td>0.95</td><td>0.2199</td><td>0.0023</td><td>2987</td><td>19</td><td>2998</td><td>45</td></tr></tbody></table>
<table><tr><td>5-T48b_8b</td><td>12.33</td><td>0.24</td><td>0.390</td><td>0.007</td><td>0.95</td><td>0.2294</td><td>0.0024</td><td>2630</td><td>19</td><td>2122</td><td>34</td></tr><tr><td>5-T48b_12</td><td>9.31</td><td>0.18</td><td>0.288</td><td>0.005</td><td>0.95</td><td>0.2343</td><td>0.0025</td><td>2369</td><td>18</td><td>1633</td><td>27</td></tr><tr><td>5-T48b_13</td><td>12.61</td><td>0.27</td><td>0.408</td><td>0.008</td><td>0.91</td><td>0.2241</td><td>0.0025</td><td>2651</td><td>20</td><td>2206</td><td>36</td></tr><tr><td>5-T48b_16a</td><td>17.88</td><td>0.35</td><td>0.589</td><td>0.011</td><td>0.94</td><td>0.2203</td><td>0.0024</td><td>2983</td><td>19</td><td>2984</td><td>45</td></tr><tr><td>5-T48b_16b</td><td>17.95</td><td>0.36</td><td>0.590</td><td>0.011</td><td>0.94</td><td>0.2207</td><td>0.0024</td><td>2987</td><td>19</td><td>2988</td><td>46</td></tr><tr><td>5-T48b_28</td><td>7.56</td><td>0.15</td><td>0.237</td><td>0.005</td><td>0.93</td><td>0.2312</td><td>0.0025</td><td>2180</td><td>19</td><td>1371</td><td>23</td></tr></table>

NM-04

<table><tr><td>NM-04_1</td><td>21.72</td><td>0.42</td><td>0.628</td><td>0.012</td><td>0.97</td><td>0.2507</td><td>0.0026</td><td>3171</td><td>19</td><td>3143</td><td>47</td></tr><tr><td>NM-04_4</td><td>22.69</td><td>0.45</td><td>0.647</td><td>0.013</td><td>0.97</td><td>0.2541</td><td>0.0026</td><td>3214</td><td>19</td><td>3218</td><td>49</td></tr><tr><td>NM-04_6</td><td>22.17</td><td>0.43</td><td>0.634</td><td>0.012</td><td>0.97</td><td>0.2534</td><td>0.0026</td><td>3191</td><td>19</td><td>3167</td><td>47</td></tr><tr><td>NM-04_10</td><td>15.45</td><td>0.33</td><td>0.449</td><td>0.009</td><td>0.91</td><td>0.2498</td><td>0.0029</td><td>2844</td><td>21</td><td>2390</td><td>39</td></tr><tr><td>NM-04_11</td><td>22.62</td><td>0.44</td><td>0.647</td><td>0.012</td><td>0.97</td><td>0.2534</td><td>0.0026</td><td>3211</td><td>19</td><td>3218</td><td>48</td></tr><tr><td>NM-04_12</td><td>22.37</td><td>0.43</td><td>0.640</td><td>0.012</td><td>0.97</td><td>0.2535</td><td>0.0026</td><td>3200</td><td>19</td><td>3189</td><td>47</td></tr></table>

MS-05

<table><tr><td>MS-05_1a</td><td>23.09</td><td>0.45</td><td>0.623</td><td>0.012</td><td>0.97</td><td>0.2687</td><td>0.0028</td><td>3231</td><td>19</td><td>3123</td><td>47</td></tr><tr><td>MS-05_1b</td><td>12.18</td><td>0.24</td><td>0.343</td><td>0.006</td><td>0.97</td><td>0.2576</td><td>0.0027</td><td>2618</td><td>18</td><td>1900</td><td>31</td></tr><tr><td>MS-05_3</td><td>22.12</td><td>0.46</td><td>0.574</td><td>0.011</td><td>0.94</td><td>0.2795</td><td>0.0031</td><td>3189</td><td>20</td><td>2924</td><td>46</td></tr><tr><td>MS-05_4a</td><td>17.79</td><td>0.34</td><td>0.520</td><td>0.010</td><td>0.97</td><td>0.2479</td><td>0.0026</td><td>2979</td><td>19</td><td>2701</td><td>42</td></tr><tr><td>MS-05_4b</td><td>21.34</td><td>0.41</td><td>0.622</td><td>0.011</td><td>0.97</td><td>0.2490</td><td>0.0026</td><td>3154</td><td>19</td><td>3116</td><td>46</td></tr><tr><td>MS-05_5a</td><td>22.79</td><td>0.45</td><td>0.651</td><td>0.012</td><td>0.95</td><td>0.2539</td><td>0.0027</td><td>3218</td><td>20</td><td>3231</td><td>48</td></tr><tr><td>MS-05_5b</td><td>22.65</td><td>0.45</td><td>0.647</td><td>0.012</td><td>0.95</td><td>0.2537</td><td>0.0027</td><td>3212</td><td>20</td><td>3218</td><td>48</td></tr><tr><td>MS-05_6</td><td>23.26</td><td>0.45</td><td>0.653</td><td>0.012</td><td>0.96</td><td>0.2582</td><td>0.0027</td><td>3238</td><td>19</td><td>3240</td><td>48</td></tr><tr><td>MS-05_8a</td><td>25.09</td><td>0.49</td><td>0.672</td><td>0.013</td><td>0.96</td><td>0.2706</td><td>0.0028</td><td>3312</td><td>19</td><td>3314</td><td>49</td></tr><tr><td>MS-05_8b</td><td>25.07</td><td>0.49</td><td>0.672</td><td>0.013</td><td>0.96</td><td>0.2704</td><td>0.0028</td><td>3311</td><td>19</td><td>3314</td><td>49</td></tr><tr><td>MS-05_11</td><td>12.27</td><td>0.24</td><td>0.355</td><td>0.007</td><td>0.96</td><td>0.2505</td><td>0.0026</td><td>2625</td><td>18</td><td>1960</td><td>32</td></tr><tr><td>MS-05_12</td><td>18.51</td><td>0.36</td><td>0.501</td><td>0.009</td><td>0.96</td><td>0.2680</td><td>0.0028</td><td>3017</td><td>19</td><td>2618</td><td>41</td></tr></table>

Zircon standards

AS3

<table><tr><td>AS3_1</td><td>1.93</td><td>0.04</td><td>0.184</td><td>0.003</td><td>0.93</td><td>0.0761</td><td>0.0008</td><td>1092</td><td>14</td><td>1090</td><td>19</td></tr><tr><td>AS3_2</td><td>1.91</td><td>0.04</td><td>0.183</td><td>0.003</td><td>0.95</td><td>0.0756</td><td>0.0008</td><td>1084</td><td>13</td><td>1084</td><td>19</td></tr><tr><td>AS3_3</td><td>1.92</td><td>0.04</td><td>0.184</td><td>0.003</td><td>0.95</td><td>0.0758</td><td>0.0008</td><td>1088</td><td>13</td><td>1087</td><td>19</td></tr><tr><td>AS3_4</td><td>1.95</td><td>0.04</td><td>0.186</td><td>0.004</td><td>0.92</td><td>0.0757</td><td>0.0008</td><td>1097</td><td>14</td><td>1101</td><td>19</td></tr><tr><td>AS3_5</td><td>1.93</td><td>0.04</td><td>0.184</td><td>0.003</td><td>0.94</td><td>0.0759</td><td>0.0008</td><td>1091</td><td>13</td><td>1090</td><td>19</td></tr><tr><td>AS3_6</td><td>1.95</td><td>0.04</td><td>0.186</td><td>0.004</td><td>0.88</td><td>0.0758</td><td>0.0009</td><td>1097</td><td>15</td><td>1100</td><td>20</td></tr><tr><td>AS3_7</td><td>1.95</td><td>0.04</td><td>0.186</td><td>0.004</td><td>0.91</td><td>0.0761</td><td>0.0008</td><td>1100</td><td>14</td><td>1101</td><td>19</td></tr><tr><td>AS3_8</td><td>1.93</td><td>0.04</td><td>0.185</td><td>0.004</td><td>0.96</td><td>0.0758</td><td>0.0008</td><td>1092</td><td>13</td><td>1093</td><td>19</td></tr><tr><td>AS3_9</td><td>1.94</td><td>0.04</td><td>0.185</td><td>0.004</td><td>0.94</td><td>0.0759</td><td>0.0008</td><td>1095</td><td>14</td><td>1096</td><td>19</td></tr><tr><td>AS3_10</td><td>1.90</td><td>0.04</td><td>0.182</td><td>0.003</td><td>0.95</td><td>0.0756</td><td>0.0008</td><td>1082</td><td>13</td><td>1080</td><td>19</td></tr><tr><td>AS3_11</td><td>1.94</td><td>0.04</td><td>0.185</td><td>0.004</td><td>0.91</td><td>0.0758</td><td>0.0008</td><td>1094</td><td>14</td><td>1096</td><td>19</td></tr><tr><td>AS3_12</td><td>1.91</td><td>0.04</td><td>0.183</td><td>0.003</td><td>0.92</td><td>0.0759</td><td>0.0008</td><td>1085</td><td>14</td><td>1082</td><td>19</td></tr><tr><td>AS3_13</td><td>1.94</td><td>0.04</td><td>0.185</td><td>0.004</td><td>0.92</td><td>0.0759</td><td>0.0008</td><td>1095</td><td>14</td><td>1096</td><td>19</td></tr><tr><td>AS3_14</td><td>1.94</td><td>0.04</td><td>0.184</td><td>0.003</td><td>0.91</td><td>0.0763</td><td>0.0008</td><td>1094</td><td>14</td><td>1090</td><td>19</td></tr><tr><td>AS3_15</td><td>1.94</td><td>0.04</td><td>0.186</td><td>0.004</td><td>0.93</td><td>0.0758</td><td>0.0008</td><td>1096</td><td>14</td><td>1099</td><td>19</td></tr></table>

Plesovice

<table><tr><td>Plesovice_1</td><td>0.38</td><td>0.01</td><td>0.051</td><td>0.001</td><td>0.91</td><td>0.0533</td><td>0.0006</td><td>324</td><td>7</td><td>322</td><td>8</td></tr><tr><td>Plesovice_2</td><td>0.37</td><td>0.01</td><td>0.051</td><td>0.001</td><td>0.94</td><td>0.0526</td><td>0.0006</td><td>321</td><td>7</td><td>323</td><td>8</td></tr><tr><td>Plesovice_3</td><td>0.38</td><td>0.01</td><td>0.051</td><td>0.001</td><td>0.92</td><td>0.0530</td><td>0.0006</td><td>324</td><td>8</td><td>323</td><td>8</td></tr><tr><td>Plesovice_4</td><td>0.37</td><td>0.01</td><td>0.051</td><td>0.001</td><td>0.92</td><td>0.0532</td><td>0.0006</td><td>322</td><td>7</td><td>320</td><td>8</td></tr><tr><td>Plesovice_5</td><td>0.39</td><td>0.01</td><td>0.054</td><td>0.001</td><td>0.90</td><td>0.0533</td><td>0.0006</td><td>338</td><td>8</td><td>337</td><td>8</td></tr><tr><td>Plesovice_6</td><td>0.40</td><td>0.01</td><td>0.054</td><td>0.001</td><td>0.91</td><td>0.0536</td><td>0.0006</td><td>340</td><td>8</td><td>337</td><td>8</td></tr><tr><td>Plesovice_7</td><td>0.37</td><td>0.01</td><td>0.051</td><td>0.001</td><td>0.90</td><td>0.0529</td><td>0.0006</td><td>323</td><td>7</td><td>323</td><td>8</td></tr><tr><td>Plesovice_8</td><td>0.37</td><td>0.01</td><td>0.051</td><td>0.001</td><td>0.95</td><td>0.0529</td><td>0.0006</td><td>323</td><td>7</td><td>323</td><td>8</td></tr><tr><td>Plesovice_9</td><td>0.39</td><td>0.01</td><td>0.053</td><td>0.001</td><td>0.94</td><td>0.0530</td><td>0.0006</td><td>334</td><td>7</td><td>334</td><td>8</td></tr><tr><td>Plesovice_10</td><td>0.38</td><td>0.01</td><td>0.052</td><td>0.001</td><td>0.93</td><td>0.0532</td><td>0.0006</td><td>328</td><td>7</td><td>326</td><td>8</td></tr></table>
<table><tr><td>Plesovice_11</td><td>0.39</td><td>0.01</td><td>0.053</td><td>0.001</td><td>0.86</td><td>0.0532</td><td>0.0006</td><td>334</td><td>8</td><td>334</td><td>8</td></tr><tr><td>Plesovice_12</td><td>0.39</td><td>0.01</td><td>0.053</td><td>0.001</td><td>0.86</td><td>0.0534</td><td>0.0006</td><td>334</td><td>8</td><td>333</td><td>8</td></tr><tr><td>Plesovice_13</td><td>0.39</td><td>0.01</td><td>0.052</td><td>0.001</td><td>0.90</td><td>0.0534</td><td>0.0006</td><td>332</td><td>8</td><td>330</td><td>8</td></tr></table>
<table><thead><tr><th rowspan="2">Pb207/Pb206</th><th rowspan="2">2σ Disc.</th><th colspan="4">Concentration (ppm)</th><th rowspan="2">Th/U</th></tr><tr><th>206Pb/204Pb</th><th>Pb</th><th>Th</th><th>U</th></tr></thead></table>

<table><tr><td>2611</td><td>17</td><td>-1.2%</td><td>4080</td><td>70</td><td>64</td><td>95</td><td>0.67</td></tr><tr><td>2610</td><td>18</td><td>9.5%</td><td>5490</td><td>64</td><td>69</td><td>97</td><td>0.71</td></tr><tr><td>2603</td><td>17</td><td>0.1%</td><td>3430</td><td>49</td><td>50</td><td>68</td><td>0.74</td></tr><tr><td>2597</td><td>17</td><td>0.0%</td><td>12278</td><td>91</td><td>118</td><td>121</td><td>0.97</td></tr><tr><td>2589</td><td>17</td><td>0.0%</td><td>12998</td><td>106</td><td>113</td><td>147</td><td>0.77</td></tr><tr><td>2592</td><td>17</td><td>-0.1%</td><td>89111</td><td>115</td><td>122</td><td>157</td><td>0.78</td></tr><tr><td>2609</td><td>17</td><td>0.0%</td><td>3118</td><td>48</td><td>42</td><td>66</td><td>0.63</td></tr><tr><td>2558</td><td>17</td><td>4.3%</td><td>24507</td><td>227</td><td>170</td><td>351</td><td>0.48</td></tr><tr><td>2608</td><td>17</td><td>5.9%</td><td>2902</td><td>174</td><td>162</td><td>237</td><td>0.68</td></tr><tr><td>2600</td><td>18</td><td>-3.8%</td><td>836</td><td>29</td><td>35</td><td>37</td><td>0.94</td></tr><tr><td>2609</td><td>17</td><td>2.4%</td><td>1879</td><td>101</td><td>104</td><td>134</td><td>0.78</td></tr><tr><td>2607</td><td>17</td><td>2.3%</td><td>3837</td><td>172</td><td>225</td><td>230</td><td>0.98</td></tr><tr><td>2581</td><td>18</td><td>3.4%</td><td>3460</td><td>89</td><td>97</td><td>126</td><td>0.77</td></tr><tr><td>2600</td><td>18</td><td>0.1%</td><td>5646</td><td>51</td><td>50</td><td>72</td><td>0.70</td></tr><tr><td>2603</td><td>18</td><td>0.0%</td><td>3473</td><td>79</td><td>86</td><td>108</td><td>0.80</td></tr><tr><td>2603</td><td>18</td><td>0.3%</td><td>28532</td><td>58</td><td>57</td><td>80</td><td>0.70</td></tr><tr><td>2620</td><td>18</td><td>5.3%</td><td>7677</td><td>28</td><td>32</td><td>39</td><td>0.83</td></tr><tr><td>2587</td><td>18</td><td>0.0%</td><td>36124</td><td>142</td><td>127</td><td>202</td><td>0.63</td></tr><tr><td>2641</td><td>18</td><td>8.3%</td><td>2602</td><td>41</td><td>45</td><td>56</td><td>0.80</td></tr><tr><td>2593</td><td>18</td><td>0.0%</td><td>8536</td><td>161</td><td>138</td><td>226</td><td>0.61</td></tr><tr><td>2582</td><td>18</td><td>-3.2%</td><td>451450</td><td>111</td><td>99</td><td>153</td><td>0.65</td></tr><tr><td>2599</td><td>18</td><td>1.6%</td><td>6252</td><td>135</td><td>128</td><td>192</td><td>0.67</td></tr><tr><td>2606</td><td>18</td><td>0.0%</td><td>18776</td><td>96</td><td>98</td><td>131</td><td>0.75</td></tr></table>

<table><tr><td>2606</td><td>17</td><td>-0.7%</td><td>7081</td><td>32</td><td>39</td><td>43</td><td>0.91</td></tr><tr><td>2598</td><td>17</td><td>-0.8%</td><td>7978</td><td>58</td><td>60</td><td>79</td><td>0.76</td></tr><tr><td>2597</td><td>17</td><td>1.1%</td><td>5186</td><td>163</td><td>182</td><td>223</td><td>0.81</td></tr><tr><td>2608</td><td>18</td><td>-1.1%</td><td>2239</td><td>15</td><td>16</td><td>19</td><td>0.83</td></tr><tr><td>2600</td><td>17</td><td>0.1%</td><td>7193</td><td>64</td><td>68</td><td>88</td><td>0.78</td></tr><tr><td>2606</td><td>17</td><td>3.3%</td><td>1786</td><td>37</td><td>54</td><td>49</td><td>1.09</td></tr><tr><td>2601</td><td>17</td><td>-1.7%</td><td>7360</td><td>74</td><td>77</td><td>99</td><td>0.78</td></tr><tr><td>2616</td><td>17</td><td>-2.3%</td><td>3876</td><td>80</td><td>39</td><td>116</td><td>0.33</td></tr><tr><td>2594</td><td>17</td><td>-1.3%</td><td>5878</td><td>60</td><td>56</td><td>84</td><td>0.66</td></tr><tr><td>2589</td><td>17</td><td>-3.0%</td><td>17689</td><td>79</td><td>73</td><td>109</td><td>0.67</td></tr><tr><td>2614</td><td>17</td><td>0.0%</td><td>3533</td><td>98</td><td>73</td><td>140</td><td>0.52</td></tr><tr><td>2580</td><td>17</td><td>-3.0%</td><td>10718</td><td>211</td><td>178</td><td>288</td><td>0.62</td></tr><tr><td>2592</td><td>17</td><td>-1.5%</td><td>14667</td><td>90</td><td>98</td><td>120</td><td>0.82</td></tr><tr><td>2614</td><td>17</td><td>0.1%</td><td>3621</td><td>129</td><td>132</td><td>175</td><td>0.76</td></tr><tr><td>2603</td><td>18</td><td>-1.4%</td><td>3946</td><td>15</td><td>21</td><td>20</td><td>1.04</td></tr><tr><td>2614</td><td>17</td><td>-0.4%</td><td>5589</td><td>50</td><td>45</td><td>69</td><td>0.65</td></tr><tr><td>2608</td><td>18</td><td>2.0%</td><td>2971</td><td>80</td><td>69</td><td>115</td><td>0.60</td></tr><tr><td>2908</td><td>17</td><td>47.6%</td><td>520</td><td>201</td><td>388</td><td>408</td><td>0.95</td></tr><tr><td>3027</td><td>17</td><td>48.3%</td><td>869</td><td>242</td><td>312</td><td>469</td><td>0.67</td></tr><tr><td>2974</td><td>17</td><td>3.1%</td><td>2187</td><td>63</td><td>65</td><td>70</td><td>0.93</td></tr><tr><td>2971</td><td>17</td><td>19.3%</td><td>2175</td><td>332</td><td>280</td><td>466</td><td>0.60</td></tr><tr><td>2980</td><td>17</td><td>18.9%</td><td>1633</td><td>234</td><td>203</td><td>325</td><td>0.62</td></tr><tr><td>2984</td><td>17</td><td>-0.5%</td><td>10891</td><td>61</td><td>67</td><td>64</td><td>1.04</td></tr><tr><td>2980</td><td>17</td><td>-0.8%</td><td>17581</td><td>44</td><td>39</td><td>49</td><td>0.79</td></tr></table>
3048 17 35.5% 911 62 60 101 0.60
3082 17 53.0% 583 85 93 179 0.52
3011 18 31.4% 910 57 82 88 0.93
2983 17 2.1% 13643 78 88 84 1.05
2986 17 -1.7% 6863 64 64 69 0.94
3060 17 61.0% 561 94 204 223 0.91

3189 16 1.8% 7557 162 95 171 0.56
3211 16 -5.1% 8611 124 48 128 0.37
3206 16 1.5% 16888 69 22 77 0.29
3183 18 29.7% 128 6 1 9 0.14
3206 16 -0.5% 4644 148 84 152 0.55
3206 16 0.7% 6664 130 90 133 0.68

3299 16 5.1% 525710 149 87 157 0.55
3232 16 47.3% 1740 108 70 209 0.33
3360 17 16.1% 276 9 0 10 0.04
3172 16 18.1% 14996 156 80 207 0.39
3179 16 4.2% 486859 133 60 151 0.40
3209 17 -0.9% 3907 19 10 20 0.50
3208 17 -0.4% 64477 18 9 19 0.50
3236 16 -0.2% 7120 93 60 95 0.64
3310 16 -0.2% 16444 70 38 69 0.54
3309 16 -0.2% 9103 56 26 56 0.46
3188 16 44.5% 3623 95 68 179 0.38
3294 16 24.9% 9963 95 33 135 0.25

1096 21 0.6% 13939 49 124 199 0.62
1085 21 0.1% 10742 60 157 246 0.64
1091 21 0.4% 14254 59 156 237 0.66
1088 22 -1.3% 10408 54 138 215 0.64
1092 21 0.2% 15983 57 150 230 0.65
1091 23 -0.9% 6491 29 51 119 0.43
1097 22 -0.3% 12076 60 157 241 0.65
1091 21 -0.2% 355391 62 157 255 0.62
1092 21 -0.5% 7273 72 185 291 0.64
1086 21 0.6% 7440 84 217 346 0.63
1091 22 -0.5% 13981 53 153 210 0.73
1092 22 1.0% 18444 90 218 370 0.59
1092 22 -0.4% 7651 83 233 327 0.71
1102 22 1.3% 4880 62 165 253 0.65
1090 21 -0.9% 8923 76 196 303 0.65

343 24 6.2% 8566 32 47 549 0.09
313 24 -3.0% 3935 34 52 586 0.09
327 25 1.4% 187239 38 60 654 0.09
338 24 5.4% 181680 37 56 643 0.09
341 25 1.0% 4002 34 49 574 0.09
355 25 5.1% 14347 37 58 639 0.09
323 25 0.1% 6839 35 53 605 0.09
325 24 0.6% 4195 35 52 594 0.09
330 24 -1.2% 13970 41 64 677 0.10
336 24 3.0% 245476 39 61 664 0.09
337 26 1.0% 143963 24 33 394 0.08
346 26 3.8% 1752 21 28 357 0.08
346 25 4.7% 9234 40 60 666 0.09
<figure><img src="image_4.png" /><figcaption>Table 4. Major and trace element results for the studied granitoids</figcaption></figure>

<table><thead><tr><th>Oxides</th><th>NM-04</th><th>MS-05</th><th>NBG-05B</th><th>NBG-06A</th><th>NBG-17A</th><th>NBG-20A</th><th>CHT5</th><th>NBG-01A</th><th>NBG-02</th></tr></thead><tbody><tr><td>SiO<sub>2</sub></td><td>66.33</td><td>67.61</td><td>71.24</td><td>76.29</td><td>73.97</td><td>73.31</td><td>76.41</td><td>69.67</td><td>71.70</td></tr><tr><td>TiO<sub>2</sub></td><td>0.36</td><td>0.51</td><td>0.33</td><td>0.09</td><td>0.12</td><td>0.11</td><td>0.06</td><td>0.33</td><td>0.22</td></tr><tr><td>Al<sub>2</sub>O<sub>3</sub></td><td>14.95</td><td>15.19</td><td>13.87</td><td>13.52</td><td>14.22</td><td>14.41</td><td>13.61</td><td>14.57</td><td>13.72</td></tr><tr><td>Fe<sub>2</sub>O<sub>3</sub></td><td>5.35</td><td>4.62</td><td>3.34</td><td>1.00</td><td>1.37</td><td>1.32</td><td>0.73</td><td>2.87</td><td>3.25</td></tr><tr><td>MnO</td><td>0.09</td><td>0.04</td><td>0.08</td><td>0.02</td><td>0.02</td><td>0.02</td><td>0.00</td><td>0.04</td><td>0.03</td></tr><tr><td>MgO</td><td>1.66</td><td>1.24</td><td>0.58</td><td>0.11</td><td>0.02</td><td>0.21</td><td>0.00</td><td>0.83</td><td>0.40</td></tr><tr><td>CaO</td><td>2.27</td><td>3.08</td><td>1.63</td><td>0.73</td><td>1.12</td><td>1.03</td><td>0.41</td><td>1.76</td><td>1.26</td></tr><tr><td>Na<sub>2</sub>O</td><td>4.41</td><td>4.07</td><td>4.32</td><td>3.16</td><td>3.83</td><td>3.74</td><td>3.02</td><td>3.95</td><td>3.97</td></tr><tr><td>K<sub>2</sub>O</td><td>3.55</td><td>3.13</td><td>3.87</td><td>5.55</td><td>4.96</td><td>5.02</td><td>5.68</td><td>4.42</td><td>4.47</td></tr><tr><td>P<sub>2</sub>O<sub>5</sub></td><td>0.12</td><td>0.13</td><td>0.12</td><td>0.03</td><td>0.04</td><td>0.04</td><td>0.00</td><td>0.11</td><td>0.08</td></tr><tr><td>Total</td><td>99.10</td><td>99.61</td><td>99.38</td><td>100.50</td><td>99.67</td><td>99.21</td><td>99.92</td><td>98.55</td><td>99.10</td></tr><tr><td>Cs</td><td>4.00</td><td>1.48</td><td>1.41</td><td>1.01</td><td>2.05</td><td>2.07</td><td>3.64</td><td>2.05</td><td>2.45</td></tr><tr><td>Rb</td><td>95.93</td><td>48.05</td><td>150.43</td><td>172.78</td><td>183.31</td><td>222.54</td><td>151.92</td><td>156.43</td><td>178.23</td></tr><tr><td>Ba</td><td>116.21</td><td>85.68</td><td>525.88</td><td>488.04</td><td>437.19</td><td>563.33</td><td>9.89</td><td>668.94</td><td>544.43</td></tr><tr><td>Th</td><td>4.43</td><td>4.38</td><td>12.88</td><td>28.38</td><td>20.91</td><td>21.18</td><td>20.11</td><td>16.59</td><td>39.77</td></tr><tr><td>U</td><td>1.52</td><td>1.66</td><td>1.28</td><td>2.67</td><td>3.59</td><td>7.00</td><td>5.09</td><td>1.64</td><td>5.42</td></tr><tr><td>Nb</td><td>10.99</td><td>5.24</td><td>2.04</td><td>5.90</td><td>3.01</td><td>7.92</td><td>7.56</td><td>14.82</td><td>10.80</td></tr><tr><td>Ta</td><td>1.09</td><td>0.51</td><td>0.18</td><td>0.30</td><td>0.07</td><td>0.32</td><td>0.92</td><td>0.50</td><td>0.50</td></tr><tr><td>Pb</td><td>9.77</td><td>6.10</td><td>16.45</td><td>20.14</td><td>16.83</td><td>19.01</td><td>42.57</td><td>19.28</td><td>18.89</td></tr><tr><td>Sr</td><td>414.31</td><td>244.03</td><td>276.73</td><td>277.02</td><td>248.28</td><td>283.74</td><td>4.78</td><td>320.15</td><td>276.44</td></tr><tr><td>Hf</td><td>6.26</td><td>6.60</td><td>4.79</td><td>5.08</td><td>7.28</td><td>5.81</td><td>3.06</td><td>10.26</td><td>10.31</td></tr><tr><td>Zr</td><td>324.22</td><td>345.27</td><td>186.30</td><td>185.47</td><td>286.18</td><td>211.31</td><td>75.79</td><td>458.29</td><td>437.26</td></tr><tr><td>Ti</td><td>2188</td><td>3047</td><td>1978</td><td>540</td><td>719</td><td>659</td><td>360</td><td>1978</td><td>1307</td></tr><tr><td>Y</td><td>11.91</td><td>14.22</td><td>8.38</td><td>21.86</td><td>13.29</td><td>24.69</td><td>9.75</td><td>59.89</td><td>41.83</td></tr><tr><td>Sc</td><td>4.84</td><td>6.21</td><td>3.42</td><td>3.80</td><td>4.32</td><td>4.48</td><td></td><td>7.37</td><td>5.73</td></tr><tr><td>V</td><td>53.05</td><td>36.35</td><td>10.68</td><td>9.61</td><td>8.79</td><td>12.43</td><td>&lt; L.D.</td><td>25.02</td><td>15.34</td></tr><tr><td>Cr</td><td>40.69</td><td>20.35</td><td>23.38</td><td>17.85</td><td>32.59</td><td>31.49</td><td>15.67</td><td>26.80</td><td>36.07</td></tr><tr><td>Co</td><td>17.22</td><td>11.11</td><td>1.92</td><td>1.62</td><td>1.97</td><td>1.81</td><td></td><td>4.56</td><td>2.70</td></tr><tr><td>Ni</td><td>10.36</td><td>6.52</td><td>5.84</td><td>6.37</td><td>6.01</td><td>5.96</td><td>&lt; L.D.</td><td>7.26</td><td>6.69</td></tr><tr><td>Cu</td><td>1.04</td><td>2.05</td><td>0.91</td><td>0.93</td><td>0.91</td><td>0.93</td><td></td><td>1.19</td><td>0.98</td></tr><tr><td>Zn</td><td>26.21</td><td>48.45</td><td>23.54</td><td>18.29</td><td>23.45</td><td>16.59</td><td>23.26</td><td>49.21</td><td>76.53</td></tr><tr><td>Ga</td><td>19.37</td><td>11.24</td><td>18.36</td><td>17.05</td><td>19.00</td><td>18.99</td><td>16.73</td><td>22.17</td><td>20.62</td></tr><tr><td>La</td><td>27.61</td><td>22.37</td><td>45.69</td><td>28.44</td><td>50.82</td><td>33.02</td><td>21.96</td><td>87.16</td><td>72.61</td></tr><tr><td>Ce</td><td>51.61</td><td>41.99</td><td>83.59</td><td>53.07</td><td>94.95</td><td>62.08</td><td>47.73</td><td>167.27</td><td>136.16</td></tr><tr><td>Pr</td><td>5.92</td><td>5.36</td><td>10.12</td><td>6.82</td><td>11.56</td><td>7.74</td><td>5.16</td><td>21.93</td><td>17.01</td></tr><tr><td>Nd</td><td>21.39</td><td>22.96</td><td>29.15</td><td>21.08</td><td>33.73</td><td>23.51</td><td>16.38</td><td>69.82</td><td>50.82</td></tr><tr><td>Sm</td><td>4.07</td><td>4.83</td><td>4.24</td><td>3.94</td><td>5.18</td><td>4.09</td><td>2.87</td><td>12.46</td><td>8.44</td></tr><tr><td>Eu</td><td>0.99</td><td>1.10</td><td>0.64</td><td>0.70</td><td>0.73</td><td>0.73</td><td>0.21</td><td>1.66</td><td>1.10</td></tr><tr><td>Gd</td><td>2.44</td><td>3.04</td><td>2.52</td><td>2.80</td><td>3.24</td><td>2.92</td><td>1.96</td><td>8.65</td><td>5.81</td></tr><tr><td>Tb</td><td>0.36</td><td>0.44</td><td>0.33</td><td>0.53</td><td>0.46</td><td>0.56</td><td>0.29</td><td>1.59</td><td>1.04</td></tr><tr><td>Dy</td><td>1.83</td><td>2.18</td><td>1.28</td><td>2.63</td><td>1.84</td><td>2.87</td><td>1.61</td><td>7.84</td><td>5.18</td></tr><tr><td>Ho</td><td>0.36</td><td>0.43</td><td>0.24</td><td>0.57</td><td>0.37</td><td>0.63</td><td>0.35</td><td>1.64</td><td>1.10</td></tr><tr><td>Er</td><td>0.92</td><td>1.12</td><td>0.60</td><td>1.65</td><td>1.01</td><td>1.85</td><td>0.96</td><td>4.55</td><td>3.09</td></tr><tr><td>Tm</td><td>0.13</td><td>0.16</td><td>0.08</td><td>0.25</td><td>0.15</td><td>0.29</td><td>0.17</td><td>0.67</td><td>0.46</td></tr><tr><td>Yb</td><td>0.84</td><td>1.07</td><td>0.60</td><td>1.76</td><td>1.10</td><td>2.15</td><td>1.16</td><td>4.54</td><td>3.31</td></tr><tr><td>Lu</td><td>0.12</td><td>0.16</td><td>0.11</td><td>0.28</td><td>0.20</td><td>0.36</td><td>0.19</td><td>0.71</td><td>0.54</td></tr><tr><td>(La/Yb)<sub>N</sub></td><td>21.74</td><td>13.75</td><td>50.39</td><td>10.68</td><td>30.39</td><td>10.14</td><td>12.50</td><td>12.68</td><td>14.48</td></tr><tr><td>(Gd/Yb)<sub>N</sub></td><td>2.34</td><td>2.27</td><td>3.38</td><td>1.28</td><td>2.36</td><td>1.09</td><td>1.36</td><td>1.53</td><td>1.41</td></tr><tr><td>Eu/Eu*</td><td>0.97</td><td>0.89</td><td>0.61</td><td>0.65</td><td>0.55</td><td>0.65</td><td>0.28</td><td>0.50</td><td>0.48</td></tr><tr><td>Cr/V</td><td>0.77</td><td>0.56</td><td>2.19</td><td>1.96</td><td>3.71</td><td>2.53</td><td></td><td>1.07</td><td>2.35</td></tr></tbody></table>
<table><thead><tr><th>NBG-03B</th><th>NBG-04A</th><th>NBG-14</th><th>NBG-18</th><th>NBG-19B</th><th>NBG-22A</th><th>NBG-24B</th><th>CHT2</th><th>CHT3</th><th>CHT4</th></tr></thead><tbody><tr><td>71.23</td><td>72.39</td><td>72.86</td><td>70.55</td><td>69.15</td><td>71.45</td><td>75.28</td><td>73.65</td><td>74.42</td><td>73.75</td></tr><tr><td>0.22</td><td>0.19</td><td>0.26</td><td>0.26</td><td>0.55</td><td>0.20</td><td>0.11</td><td>0.21</td><td>0.18</td><td>0.18</td></tr><tr><td>14.02</td><td>14.14</td><td>13.91</td><td>14.35</td><td>14.65</td><td>14.47</td><td>13.98</td><td>14.01</td><td>13.72</td><td>13.97</td></tr><tr><td>3.01</td><td>2.65</td><td>2.46</td><td>2.81</td><td>4.23</td><td>2.64</td><td>1.45</td><td>1.69</td><td>1.59</td><td>1.58</td></tr><tr><td>0.03</td><td>0.03</td><td>0.04</td><td>0.04</td><td>0.04</td><td>0.03</td><td>0.04</td><td>0.03</td><td>0.00</td><td>0.03</td></tr><tr><td>0.49</td><td>0.53</td><td>0.58</td><td>0.56</td><td>0.85</td><td>0.49</td><td>0.14</td><td>0.32</td><td>0.26</td><td>0.32</td></tr><tr><td>1.58</td><td>1.42</td><td>1.64</td><td>1.73</td><td>1.89</td><td>1.37</td><td>0.97</td><td>1.20</td><td>1.25</td><td>1.36</td></tr><tr><td>4.31</td><td>4.02</td><td>3.99</td><td>4.28</td><td>4.40</td><td>4.01</td><td>2.83</td><td>3.91</td><td>3.54</td><td>3.25</td></tr><tr><td>4.11</td><td>4.43</td><td>3.90</td><td>3.96</td><td>3.54</td><td>4.59</td><td>5.31</td><td>4.51</td><td>4.68</td><td>5.21</td></tr><tr><td>0.07</td><td>0.07</td><td>0.08</td><td>0.10</td><td>0.13</td><td>0.07</td><td>0.05</td><td>0.09</td><td>0.07</td><td>0.08</td></tr><tr><td>99.07</td><td>99.87</td><td>99.72</td><td>98.64</td><td>99.43</td><td>99.32</td><td>100.16</td><td>99.62</td><td>99.71</td><td>99.73</td></tr><tr><td>1.50</td><td>1.57</td><td>7.28</td><td>1.44</td><td>2.38</td><td>2.42</td><td>11.94</td><td>2.13</td><td>1.91</td><td>1.95</td></tr><tr><td>163.70</td><td>170.53</td><td>253.79</td><td>144.18</td><td>163.92</td><td>177.21</td><td>376.47</td><td>138.15</td><td>169.92</td><td>156.68</td></tr><tr><td>688.43</td><td>555.33</td><td>508.23</td><td>620.21</td><td>408.19</td><td>448.34</td><td>372.85</td><td>517.34</td><td>362.98</td><td>267.14</td></tr><tr><td>20.95</td><td>17.04</td><td>22.12</td><td>16.89</td><td>18.52</td><td>9.86</td><td>20.82</td><td>19.91</td><td>23.98</td><td>21.11</td></tr><tr><td>2.32</td><td>1.05</td><td>4.13</td><td>2.00</td><td>1.72</td><td>3.02</td><td>3.24</td><td>3.59</td><td>3.79</td><td>3.39</td></tr><tr><td>8.71</td><td>7.94</td><td>16.97</td><td>14.12</td><td>8.67</td><td>12.28</td><td>14.13</td><td>13.70</td><td>8.35</td><td>12.82</td></tr><tr><td>0.28</td><td>0.28</td><td>0.71</td><td>0.45</td><td>0.34</td><td>0.38</td><td>0.89</td><td>1.26</td><td>1.16</td><td>2.12</td></tr><tr><td>25.95</td><td>15.97</td><td>18.21</td><td>15.36</td><td>17.88</td><td>16.11</td><td>20.18</td><td>38.87</td><td>23.75</td><td>22.80</td></tr><tr><td>369.70</td><td>287.87</td><td>320.23</td><td>432.28</td><td>273.29</td><td>226.76</td><td>177.73</td><td>218.88</td><td>132.43</td><td>95.00</td></tr><tr><td>9.62</td><td>8.35</td><td>9.19</td><td>9.16</td><td>9.56</td><td>8.80</td><td>6.99</td><td>6.43</td><td>5.54</td><td>6.01</td></tr><tr><td>426.84</td><td>372.13</td><td>398.35</td><td>413.52</td><td>395.83</td><td>388.54</td><td>269.64</td><td>207.67</td><td>173.59</td><td>186.94</td></tr><tr><td>1319</td><td>1139</td><td>1559</td><td>1559</td><td>3297</td><td>1199</td><td>659</td><td>1259</td><td>1079</td><td>1079</td></tr><tr><td>33.73</td><td>26.75</td><td>51.34</td><td>54.73</td><td>34.30</td><td>39.56</td><td>32.80</td><td>25.12</td><td>30.36</td><td>49.10</td></tr><tr><td>5.94</td><td>5.14</td><td>7.02</td><td>6.37</td><td>3.93</td><td>5.52</td><td>7.21</td><td></td><td></td><td></td></tr><tr><td>19.77</td><td>15.60</td><td>23.75</td><td>23.69</td><td>12.00</td><td>15.13</td><td>10.57</td><td>19.85</td><td>14.31</td><td>16.43</td></tr><tr><td>35.58</td><td>33.12</td><td>36.94</td><td>27.97</td><td>34.45</td><td>27.83</td><td>16.93</td><td>29.26</td><td>16.58</td><td>17.49</td></tr><tr><td>4.41</td><td>3.06</td><td>4.62</td><td>3.42</td><td>2.13</td><td>3.12</td><td>2.74</td><td></td><td></td><td></td></tr><tr><td>7.56</td><td>6.62</td><td>6.40</td><td>6.00</td><td>5.97</td><td>5.91</td><td>6.10</td><td>&lt; L.D.</td><td>&lt; L.D.</td><td>&lt; L.D.</td></tr><tr><td>1.42</td><td>1.04</td><td>1.06</td><td>1.04</td><td>0.96</td><td>1.05</td><td>1.02</td><td></td><td></td><td></td></tr><tr><td>61.66</td><td>56.82</td><td>25.84</td><td>25.72</td><td>28.88</td><td>112.61</td><td>36.24</td><td>51.67</td><td>30.30</td><td>40.37</td></tr><tr><td>22.40</td><td>20.14</td><td>21.81</td><td>21.89</td><td>19.03</td><td>18.97</td><td>20.80</td><td>19.70</td><td>18.43</td><td>20.20</td></tr><tr><td>94.52</td><td>75.51</td><td>78.60</td><td>79.66</td><td>52.90</td><td>52.07</td><td>58.41</td><td>70.14</td><td>47.82</td><td>50.51</td></tr><tr><td>173.15</td><td>141.59</td><td>146.71</td><td>157.51</td><td>98.47</td><td>99.47</td><td>103.62</td><td>140.88</td><td>96.90</td><td>103.12</td></tr><tr><td>20.89</td><td>17.17</td><td>18.12</td><td>20.74</td><td>12.15</td><td>12.38</td><td>13.41</td><td>15.44</td><td>10.86</td><td>11.72</td></tr><tr><td>60.48</td><td>49.48</td><td>55.69</td><td>64.76</td><td>35.96</td><td>37.76</td><td>39.98</td><td>53.77</td><td>37.67</td><td>42.70</td></tr><tr><td>8.76</td><td>7.07</td><td>9.46</td><td>11.08</td><td>6.23</td><td>6.83</td><td>6.92</td><td>8.36</td><td>6.90</td><td>8.33</td></tr><tr><td>1.20</td><td>1.08</td><td>1.33</td><td>1.67</td><td>0.86</td><td>0.96</td><td>0.81</td><td>1.31</td><td>0.86</td><td>0.91</td></tr><tr><td>5.64</td><td>4.54</td><td>6.45</td><td>7.52</td><td>4.33</td><td>4.94</td><td>4.68</td><td>5.28</td><td>6.04</td><td>7.74</td></tr><tr><td>0.90</td><td>0.73</td><td>1.16</td><td>1.37</td><td>0.81</td><td>0.95</td><td>0.84</td><td>0.75</td><td>0.95</td><td>1.28</td></tr><tr><td>4.11</td><td>3.35</td><td>5.77</td><td>6.72</td><td>4.10</td><td>4.89</td><td>3.86</td><td>4.48</td><td>5.48</td><td>7.47</td></tr><tr><td>0.88</td><td>0.71</td><td>1.25</td><td>1.42</td><td>0.89</td><td>1.04</td><td>0.80</td><td>0.81</td><td>1.10</td><td>1.64</td></tr><tr><td>2.51</td><td>1.98</td><td>3.70</td><td>4.04</td><td>2.58</td><td>2.93</td><td>2.21</td><td>2.29</td><td>2.95</td><td>4.60</td></tr><tr><td>0.38</td><td>0.29</td><td>0.58</td><td>0.61</td><td>0.40</td><td>0.44</td><td>0.32</td><td>0.36</td><td>0.44</td><td>0.72</td></tr><tr><td>2.72</td><td>2.08</td><td>4.14</td><td>4.15</td><td>2.74</td><td>3.04</td><td>2.28</td><td>2.59</td><td>2.97</td><td>4.86</td></tr><tr><td>0.45</td><td>0.33</td><td>0.67</td><td>0.63</td><td>0.42</td><td>0.46</td><td>0.37</td><td>0.39</td><td>0.45</td><td>0.77</td></tr><tr><td>22.93</td><td>24.02</td><td>12.54</td><td>12.68</td><td>12.74</td><td>11.30</td><td>16.94</td><td>17.88</td><td>10.63</td><td>6.86</td></tr><tr><td>1.67</td><td>1.76</td><td>1.25</td><td>1.46</td><td>1.27</td><td>1.31</td><td>1.65</td><td>1.64</td><td>1.63</td><td>1.28</td></tr><tr><td>0.53</td><td>0.59</td><td>0.53</td><td>0.57</td><td>0.51</td><td>0.51</td><td>0.44</td><td>0.61</td><td>0.42</td><td>0.35</td></tr><tr><td>1.80</td><td>2.12</td><td>1.56</td><td>1.18</td><td>2.87</td><td>1.84</td><td>1.70</td><td>1.47</td><td>1.16</td><td>1.06</td></tr></tbody></table>
<table><thead><tr><th>CHT6</th><th>BH50C</th><th>BH51B</th><th>BH54B</th><th>IND 413</th><th>BC-01</th><th>YD 5</th><th>NBG-01B</th><th>NBG-01C</th><th>NBG-03A</th></tr></thead><tbody><tr><td>72.60</td><td>71.00</td><td>67.73</td><td>72.48</td><td>70.66</td><td>72.21</td><td>73.74</td><td>68.59</td><td>67.14</td><td>70.62</td></tr><tr><td>0.24</td><td>0.30</td><td>0.69</td><td>0.30</td><td>0.42</td><td>0.40</td><td>0.32</td><td>0.49</td><td>0.54</td><td>0.27</td></tr><tr><td>14.55</td><td>14.70</td><td>14.74</td><td>14.27</td><td>14.01</td><td>14.51</td><td>14.05</td><td>14.69</td><td>15.38</td><td>14.44</td></tr><tr><td>1.81</td><td>2.74</td><td>4.55</td><td>2.10</td><td>3.68</td><td>2.47</td><td>2.71</td><td>4.23</td><td>4.20</td><td>2.50</td></tr><tr><td>0.00</td><td>0.04</td><td>0.06</td><td>0.00</td><td>0.04</td><td>0.04</td><td>0.08</td><td>0.07</td><td>0.06</td><td>0.04</td></tr><tr><td>0.43</td><td>0.38</td><td>1.24</td><td>0.56</td><td>0.64</td><td>0.42</td><td>0.30</td><td>1.23</td><td>1.25</td><td>0.56</td></tr><tr><td>1.48</td><td>1.83</td><td>2.68</td><td>1.74</td><td>2.07</td><td>1.55</td><td>1.22</td><td>2.50</td><td>2.56</td><td>1.45</td></tr><tr><td>3.72</td><td>3.92</td><td>3.83</td><td>3.91</td><td>3.45</td><td>3.27</td><td>2.55</td><td>4.34</td><td>4.41</td><td>4.06</td></tr><tr><td>4.56</td><td>4.31</td><td>3.27</td><td>3.90</td><td>4.32</td><td>4.83</td><td>4.73</td><td>2.87</td><td>2.72</td><td>4.41</td></tr><tr><td>0.10</td><td>0.09</td><td>0.15</td><td>0.09</td><td>0.13</td><td>0.02</td><td>0.10</td><td>0.16</td><td>0.19</td><td>0.10</td></tr><tr><td>99.49</td><td>99.31</td><td>98.94</td><td>99.35</td><td>99.42</td><td>99.73</td><td>99.80</td><td>99.17</td><td>98.45</td><td>98.45</td></tr><tr><td>3.37</td><td>1.10</td><td>1.14</td><td>1.26</td><td>1.86</td><td>1.81</td><td>1.38</td><td>2.32</td><td>2.43</td><td>2.21</td></tr><tr><td>163.21</td><td>131.68</td><td>100.65</td><td>118.50</td><td>140.39</td><td>129.25</td><td>104.00</td><td>131.17</td><td>164.07</td><td>221.24</td></tr><tr><td>452.97</td><td>622.42</td><td>433.05</td><td>575.41</td><td>429.66</td><td>316.98</td><td>273.65</td><td>347.16</td><td>582.03</td><td>717.27</td></tr><tr><td>18.83</td><td>18.58</td><td>13.70</td><td>16.45</td><td>22.21</td><td>15.99</td><td>24.00</td><td>19.66</td><td>20.14</td><td>28.81</td></tr><tr><td>1.63</td><td>4.46</td><td>1.79</td><td>0.85</td><td>2.05</td><td>1.31</td><td>2.60</td><td>2.15</td><td>2.55</td><td>2.68</td></tr><tr><td>9.67</td><td>10.37</td><td>21.30</td><td>7.37</td><td>15.58</td><td>15.89</td><td>11.19</td><td>22.14</td><td>22.21</td><td>18.76</td></tr><tr><td>0.89</td><td>0.92</td><td>2.02</td><td>0.52</td><td>0.88</td><td>1.30</td><td>0.84</td><td>0.75</td><td>1.21</td><td>0.69</td></tr><tr><td>25.26</td><td>21.03</td><td>16.33</td><td>18.16</td><td>22.98</td><td>18.01</td><td>29.32</td><td>13.87</td><td>15.03</td><td>22.95</td></tr><tr><td>137.35</td><td>195.31</td><td>253.67</td><td>236.18</td><td>158.98</td><td>198.15</td><td>145.66</td><td>324.46</td><td>404.18</td><td>452.63</td></tr><tr><td>5.97</td><td>6.32</td><td>9.29</td><td>6.54</td><td>10.29</td><td>8.21</td><td>10.96</td><td>11.84</td><td>12.36</td><td>10.98</td></tr><tr><td>209.90</td><td>253.75</td><td>356.12</td><td>246.61</td><td>372.63</td><td>385.92</td><td>463.76</td><td>565.10</td><td>579.49</td><td>476.75</td></tr><tr><td>1439</td><td>1799</td><td>4137</td><td>1799</td><td>2518</td><td>2401</td><td>1924</td><td>2938</td><td>3237</td><td>1619</td></tr><tr><td>19.92</td><td>18.51</td><td>54.40</td><td>19.24</td><td>36.28</td><td>35.57</td><td>22.41</td><td>76.43</td><td>117.03</td><td>73.73</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td>4.00</td><td>2.88</td><td>23.11</td><td>9.59</td><td>8.21</td></tr><tr><td>20.82</td><td>27.64</td><td>68.16</td><td>23.38</td><td>38.89</td><td>35.38</td><td>16.74</td><td>46.08</td><td>37.24</td><td>26.52</td></tr><tr><td>16.34</td><td>15.93</td><td>28.71</td><td>16.71</td><td>23.95</td><td>13.32</td><td>13.89</td><td>39.47</td><td>33.39</td><td>37.04</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td>4.79</td><td>20.39</td><td>7.90</td><td>5.78</td><td>4.46</td></tr><tr><td>&lt; L.D.</td><td>5.38</td><td>10.11</td><td>6.92</td><td>&lt; L.D.</td><td>4.64</td><td>5.18</td><td>7.63</td><td>7.04</td><td>7.00</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td>1.59</td><td>1.18</td><td>1.60</td><td>1.31</td><td>1.25</td></tr><tr><td>44.07</td><td>44.78</td><td>78.87</td><td>44.37</td><td>64.83</td><td>19.73</td><td>26.49</td><td>55.02</td><td>47.33</td><td>32.44</td></tr><tr><td>18.32</td><td>20.65</td><td>21.22</td><td>18.91</td><td>18.72</td><td>21.01</td><td>18.62</td><td>24.49</td><td>25.73</td><td>28.11</td></tr><tr><td>70.81</td><td>93.86</td><td>71.74</td><td>74.94</td><td>93.20</td><td>75.87</td><td>87.15</td><td>91.02</td><td>127.75</td><td>135.80</td></tr><tr><td>140.08</td><td>173.16</td><td>150.08</td><td>141.57</td><td>176.98</td><td>141.93</td><td>150.73</td><td>182.53</td><td>252.01</td><td>252.13</td></tr><tr><td>15.25</td><td>16.98</td><td>17.31</td><td>14.24</td><td>19.12</td><td>15.61</td><td>15.83</td><td>24.50</td><td>33.94</td><td>31.05</td></tr><tr><td>51.92</td><td>55.68</td><td>62.42</td><td>48.24</td><td>64.66</td><td>52.21</td><td>47.79</td><td>78.36</td><td>111.28</td><td>92.74</td></tr><tr><td>7.71</td><td>7.24</td><td>11.50</td><td>8.04</td><td>10.42</td><td>8.85</td><td>7.56</td><td>14.11</td><td>21.40</td><td>15.09</td></tr><tr><td>0.95</td><td>1.15</td><td>2.04</td><td>1.10</td><td>1.54</td><td>1.18</td><td>1.02</td><td>2.03</td><td>2.61</td><td>1.99</td></tr><tr><td>5.14</td><td>6.00</td><td>9.84</td><td>5.10</td><td>8.23</td><td>5.54</td><td>4.21</td><td>9.79</td><td>15.24</td><td>10.36</td></tr><tr><td>0.80</td><td>0.72</td><td>1.46</td><td>0.77</td><td>1.29</td><td>0.88</td><td>0.61</td><td>1.82</td><td>2.96</td><td>1.84</td></tr><tr><td>4.08</td><td>3.59</td><td>9.68</td><td>4.20</td><td>7.28</td><td>5.06</td><td>3.04</td><td>9.14</td><td>15.14</td><td>9.12</td></tr><tr><td>0.75</td><td>0.70</td><td>1.91</td><td>0.72</td><td>1.33</td><td>1.08</td><td>0.63</td><td>1.97</td><td>3.15</td><td>1.93</td></tr><tr><td>2.08</td><td>1.84</td><td>5.52</td><td>2.00</td><td>3.79</td><td>3.02</td><td>1.76</td><td>5.68</td><td>8.70</td><td>5.47</td></tr><tr><td>0.31</td><td>0.28</td><td>0.92</td><td>0.25</td><td>0.53</td><td>0.45</td><td>0.26</td><td>0.87</td><td>1.28</td><td>0.82</td></tr><tr><td>2.09</td><td>1.82</td><td>6.61</td><td>1.84</td><td>3.58</td><td>3.16</td><td>1.81</td><td>6.22</td><td>8.40</td><td>5.55</td></tr><tr><td>0.32</td><td>0.30</td><td>0.94</td><td>0.28</td><td>0.53</td><td>0.47</td><td>0.27</td><td>1.01</td><td>1.21</td><td>0.84</td></tr><tr><td>22.41</td><td>34.02</td><td>7.17</td><td>26.85</td><td>17.21</td><td>15.83</td><td>31.82</td><td>9.66</td><td>10.05</td><td>16.15</td></tr><tr><td>1.98</td><td>2.64</td><td>1.20</td><td>2.22</td><td>1.85</td><td>1.41</td><td>1.87</td><td>1.26</td><td>1.46</td><td>1.50</td></tr><tr><td>0.47</td><td>0.54</td><td>0.60</td><td>0.53</td><td>0.52</td><td>0.52</td><td>0.56</td><td>0.53</td><td>0.45</td><td>0.49</td></tr><tr><td>0.78</td><td>0.58</td><td>0.42</td><td>0.71</td><td>0.62</td><td>0.38</td><td>0.83</td><td>0.86</td><td>0.90</td><td>1.40</td></tr></tbody></table>
<table><thead><tr><th>NBG-4B</th><th>NBG-05A</th><th>NBG-05C</th><th>NBG-05E</th><th>NBG-06B</th><th>NBG-06C</th><th>NBG-07</th><th>NBG-08B</th><th>NBG-17B</th></tr></thead><tbody><tr><td>65.96</td><td>72.70</td><td>66.93</td><td>73.86</td><td>70.47</td><td>69.09</td><td>69.44</td><td>74.87</td><td>67.37</td></tr><tr><td>0.73</td><td>0.14</td><td>0.66</td><td>0.13</td><td>0.32</td><td>0.56</td><td>0.53</td><td>0.13</td><td>0.64</td></tr><tr><td>15.25</td><td>14.39</td><td>15.28</td><td>14.13</td><td>14.64</td><td>14.28</td><td>14.67</td><td>13.97</td><td>14.97</td></tr><tr><td>5.46</td><td>2.24</td><td>5.03</td><td>2.07</td><td>3.46</td><td>3.93</td><td>3.58</td><td>1.50</td><td>4.63</td></tr><tr><td>0.08</td><td>0.03</td><td>0.08</td><td>0.03</td><td>0.04</td><td>0.06</td><td>0.07</td><td>0.02</td><td>0.06</td></tr><tr><td>1.44</td><td>0.31</td><td>2.04</td><td>0.08</td><td>0.58</td><td>2.04</td><td>0.68</td><td>0.09</td><td>1.03</td></tr><tr><td>2.88</td><td>1.26</td><td>3.01</td><td>1.11</td><td>1.62</td><td>2.33</td><td>2.07</td><td>1.13</td><td>2.45</td></tr><tr><td>4.89</td><td>4.01</td><td>4.52</td><td>3.47</td><td>4.32</td><td>4.52</td><td>4.19</td><td>3.12</td><td>4.55</td></tr><tr><td>1.83</td><td>4.30</td><td>2.96</td><td>5.51</td><td>4.46</td><td>2.46</td><td>3.11</td><td>5.21</td><td>3.32</td></tr><tr><td>0.23</td><td>0.04</td><td>0.38</td><td>0.05</td><td>0.12</td><td>0.38</td><td>0.14</td><td>0.03</td><td>0.17</td></tr><tr><td>98.75</td><td>99.42</td><td>100.89</td><td>100.44</td><td>100.03</td><td>99.65</td><td>98.48</td><td>100.07</td><td>99.19</td></tr><tr><td>3.30</td><td>2.06</td><td>2.01</td><td></td><td>2.08</td><td>2.88</td><td>3.53</td><td></td><td>3.82</td></tr><tr><td>180.71</td><td>139.57</td><td>134.78</td><td></td><td>179.33</td><td>157.43</td><td>200.28</td><td></td><td>136.43</td></tr><tr><td>418.22</td><td>475.12</td><td>236.79</td><td></td><td>637.49</td><td>295.00</td><td>467.93</td><td></td><td>205.65</td></tr><tr><td>31.00</td><td>22.98</td><td>15.81</td><td></td><td>23.92</td><td>33.34</td><td>18.79</td><td></td><td>21.45</td></tr><tr><td>2.40</td><td>1.88</td><td>2.76</td><td></td><td>1.79</td><td>3.47</td><td>4.08</td><td></td><td>4.75</td></tr><tr><td>13.34</td><td>9.76</td><td>11.82</td><td></td><td>17.56</td><td>13.95</td><td>19.16</td><td></td><td>15.04</td></tr><tr><td>0.37</td><td>0.44</td><td>0.69</td><td></td><td>0.74</td><td>0.61</td><td>0.63</td><td></td><td>0.39</td></tr><tr><td>18.27</td><td>15.04</td><td>12.18</td><td></td><td>18.34</td><td>16.16</td><td>18.29</td><td></td><td>15.63</td></tr><tr><td>252.61</td><td>304.34</td><td>515.33</td><td></td><td>364.50</td><td>310.35</td><td>326.15</td><td></td><td>267.59</td></tr><tr><td>14.08</td><td>9.34</td><td>12.85</td><td></td><td>9.77</td><td>14.00</td><td>14.72</td><td></td><td>14.51</td></tr><tr><td>636.90</td><td>429.27</td><td>609.81</td><td></td><td>435.05</td><td>663.67</td><td>729.55</td><td></td><td>714.05</td></tr><tr><td>4376</td><td>839</td><td>3957</td><td></td><td>1918</td><td>3357</td><td>3177</td><td></td><td>3843</td></tr><tr><td>49.86</td><td>32.55</td><td>319.51</td><td></td><td>68.92</td><td>47.06</td><td>71.07</td><td></td><td>55.05</td></tr><tr><td>5.31</td><td>5.96</td><td>28.45</td><td></td><td>6.64</td><td>8.82</td><td>9.25</td><td></td><td>10.47</td></tr><tr><td>15.85</td><td>19.01</td><td>61.36</td><td></td><td>23.18</td><td>20.27</td><td>36.28</td><td></td><td>27.04</td></tr><tr><td>36.26</td><td>23.30</td><td>35.70</td><td></td><td>29.34</td><td>31.62</td><td>35.18</td><td></td><td>28.87</td></tr><tr><td>3.68</td><td>3.52</td><td>10.44</td><td></td><td>3.72</td><td>4.71</td><td>6.12</td><td></td><td>5.34</td></tr><tr><td>6.47</td><td>6.23</td><td>8.04</td><td></td><td>6.24</td><td>6.46</td><td>6.99</td><td></td><td>6.71</td></tr><tr><td>1.31</td><td>1.06</td><td>1.29</td><td></td><td>1.08</td><td>1.05</td><td>1.34</td><td></td><td>1.20</td></tr><tr><td>30.99</td><td>25.15</td><td>52.01</td><td></td><td>73.19</td><td>79.81</td><td>43.45</td><td></td><td>32.47</td></tr><tr><td>25.83</td><td>23.06</td><td>26.50</td><td></td><td>23.59</td><td>25.61</td><td>23.93</td><td></td><td>25.98</td></tr><tr><td>146.31</td><td>115.11</td><td>82.56</td><td></td><td>116.97</td><td>140.63</td><td>107.59</td><td></td><td>106.86</td></tr><tr><td>284.93</td><td>208.12</td><td>184.04</td><td></td><td>219.57</td><td>253.18</td><td>211.41</td><td></td><td>206.36</td></tr><tr><td>36.69</td><td>24.58</td><td>28.41</td><td></td><td>27.40</td><td>29.43</td><td>27.53</td><td></td><td>26.58</td></tr><tr><td>113.19</td><td>69.31</td><td>102.38</td><td></td><td>83.64</td><td>82.46</td><td>87.28</td><td></td><td>82.41</td></tr><tr><td>19.14</td><td>9.61</td><td>23.44</td><td></td><td>14.24</td><td>11.40</td><td>15.18</td><td></td><td>14.11</td></tr><tr><td>1.72</td><td>1.28</td><td>3.05</td><td></td><td>1.88</td><td>1.44</td><td>1.97</td><td></td><td>1.54</td></tr><tr><td>11.65</td><td>6.10</td><td>19.54</td><td></td><td>9.95</td><td>7.53</td><td>10.52</td><td></td><td>9.42</td></tr><tr><td>1.74</td><td>0.91</td><td>4.86</td><td></td><td>1.77</td><td>1.17</td><td>1.85</td><td></td><td>1.60</td></tr><tr><td>7.04</td><td>4.16</td><td>21.03</td><td></td><td>8.83</td><td>5.54</td><td>8.86</td><td></td><td>7.29</td></tr><tr><td>1.39</td><td>0.88</td><td>4.02</td><td></td><td>1.84</td><td>1.20</td><td>1.87</td><td></td><td>1.48</td></tr><tr><td>3.71</td><td>2.44</td><td>11.19</td><td></td><td>5.09</td><td>3.50</td><td>5.34</td><td></td><td>4.00</td></tr><tr><td>0.52</td><td>0.36</td><td>1.53</td><td></td><td>0.75</td><td>0.54</td><td>0.81</td><td></td><td>0.58</td></tr><tr><td>3.58</td><td>2.57</td><td>9.64</td><td></td><td>4.89</td><td>3.87</td><td>6.20</td><td></td><td>4.03</td></tr><tr><td>0.57</td><td>0.42</td><td>1.49</td><td></td><td>0.74</td><td>0.63</td><td>1.12</td><td></td><td>0.66</td></tr><tr><td>27.01</td><td>29.53</td><td>5.66</td><td></td><td>15.80</td><td>24.02</td><td>11.46</td><td></td><td>17.52</td></tr><tr><td>2.62</td><td>1.90</td><td>1.63</td><td></td><td>1.63</td><td>1.56</td><td>1.36</td><td></td><td>1.88</td></tr><tr><td>0.36</td><td>0.52</td><td>0.44</td><td></td><td>0.49</td><td>0.48</td><td>0.48</td><td></td><td>0.41</td></tr><tr><td>2.29</td><td>1.23</td><td>0.58</td><td></td><td>1.27</td><td>1.56</td><td>0.97</td><td></td><td>1.07</td></tr></tbody></table>
<table><thead><tr><th>NBG-19A</th><th>NBG-20B</th><th>NBG-20C</th><th>NBG-22B</th><th>BH51C</th><th>AC-01</th><th>BH50A</th><th>BH50B</th><th>BH51A</th><th>BH52</th></tr></thead><tbody><tr><td>75.08</td><td>70.83</td><td>70.26</td><td>66.77</td><td>69.87</td><td>63.69</td><td>73.49</td><td>70.01</td><td>72.29</td><td>73.52</td></tr><tr><td>0.14</td><td>0.38</td><td>0.36</td><td>0.58</td><td>0.46</td><td>0.62</td><td>0.16</td><td>0.51</td><td>0.27</td><td>0.27</td></tr><tr><td>13.75</td><td>14.56</td><td>14.77</td><td>14.85</td><td>14.18</td><td>15.70</td><td>14.10</td><td>14.43</td><td>13.73</td><td>13.77</td></tr><tr><td>1.22</td><td>3.10</td><td>3.19</td><td>5.36</td><td>3.47</td><td>5.85</td><td>1.17</td><td>3.26</td><td>2.03</td><td>1.90</td></tr><tr><td>0.02</td><td>0.06</td><td>0.06</td><td>0.09</td><td>0.06</td><td>0.07</td><td>0.02</td><td>0.05</td><td>0.03</td><td>0.04</td></tr><tr><td>0.16</td><td>0.81</td><td>0.67</td><td>1.17</td><td>0.75</td><td>2.63</td><td>0.31</td><td>0.76</td><td>0.34</td><td>0.40</td></tr><tr><td>1.20</td><td>1.99</td><td>1.97</td><td>2.54</td><td>2.29</td><td>3.40</td><td>1.66</td><td>2.14</td><td>1.69</td><td>1.26</td></tr><tr><td>2.91</td><td>4.56</td><td>4.56</td><td>4.16</td><td>4.16</td><td>3.62</td><td>3.35</td><td>3.90</td><td>3.75</td><td>3.91</td></tr><tr><td>5.63</td><td>3.15</td><td>3.58</td><td>2.90</td><td>3.08</td><td>4.04</td><td>4.61</td><td>3.61</td><td>4.43</td><td>4.38</td></tr><tr><td>0.05</td><td>0.13</td><td>0.14</td><td>0.17</td><td>0.15</td><td>0.09</td><td>0.05</td><td>0.16</td><td>0.08</td><td>0.07</td></tr><tr><td>100.16</td><td>99.57</td><td>99.56</td><td>98.59</td><td>98.47</td><td>99.71</td><td>98.92</td><td>98.83</td><td>98.64</td><td>99.52</td></tr><tr><td>4.13</td><td>4.68</td><td>4.00</td><td>2.07</td><td>1.40</td><td>2.09</td><td></td><td></td><td></td><td></td></tr><tr><td>181.55</td><td>195.07</td><td>199.83</td><td>155.34</td><td>117.17</td><td>137.73</td><td>116.00</td><td>133.00</td><td>119.00</td><td>133.00</td></tr><tr><td>83.83</td><td>393.29</td><td>558.52</td><td>640.97</td><td>287.97</td><td>176.74</td><td>338.00</td><td>533.00</td><td>548.00</td><td>571.00</td></tr><tr><td>33.28</td><td>25.05</td><td>24.01</td><td>16.78</td><td>24.38</td><td>16.93</td><td>10.00</td><td>14.00</td><td>14.00</td><td>17.00</td></tr><tr><td>2.38</td><td>4.26</td><td>4.85</td><td>2.41</td><td>1.71</td><td>3.07</td><td></td><td></td><td></td><td></td></tr><tr><td>31.73</td><td>26.61</td><td>29.54</td><td>22.55</td><td>21.45</td><td>77.76</td><td>6.00</td><td>20.00</td><td>12.00</td><td>17.00</td></tr><tr><td>0.91</td><td>0.98</td><td>1.64</td><td>0.73</td><td>2.40</td><td>9.97</td><td></td><td></td><td></td><td></td></tr><tr><td>12.80</td><td>19.06</td><td>17.62</td><td>12.95</td><td>19.73</td><td>13.54</td><td>19.00</td><td>16.00</td><td>19.00</td><td>34.00</td></tr><tr><td>276.23</td><td>288.52</td><td>393.51</td><td>400.74</td><td>155.22</td><td>401.91</td><td>235.00</td><td>246.00</td><td>200.00</td><td>232.00</td></tr><tr><td>19.95</td><td>15.09</td><td>11.77</td><td>14.12</td><td>9.93</td><td>17.14</td><td></td><td></td><td></td><td></td></tr><tr><td>1004.10</td><td>721.71</td><td>516.63</td><td>700.00</td><td>392.14</td><td>815.53</td><td>117.00</td><td>311.00</td><td>202.00</td><td>211.00</td></tr><tr><td>839</td><td>2278</td><td>2158</td><td>3477</td><td>2758</td><td>3714</td><td>959</td><td>3057</td><td>1619</td><td>1619</td></tr><tr><td>176.29</td><td>105.47</td><td>79.55</td><td>93.22</td><td>63.24</td><td>243.71</td><td>13.00</td><td>58.00</td><td>28.00</td><td>27.00</td></tr><tr><td>14.33</td><td>10.54</td><td>10.25</td><td>10.77</td><td></td><td>19.81</td><td></td><td></td><td></td><td></td></tr><tr><td>45.69</td><td>29.27</td><td>34.45</td><td>38.66</td><td>37.56</td><td>159.88</td><td>14.00</td><td>50.00</td><td>33.00</td><td>23.00</td></tr><tr><td>15.65</td><td>40.35</td><td>37.42</td><td>29.76</td><td>41.09</td><td>60.07</td><td>15.00</td><td>27.00</td><td>22.00</td><td>23.00</td></tr><tr><td>8.35</td><td>5.14</td><td>4.78</td><td>6.35</td><td></td><td>28.00</td><td></td><td></td><td></td><td></td></tr><tr><td>7.27</td><td>7.02</td><td>6.18</td><td>6.68</td><td>8.93</td><td>13.16</td><td>1.00</td><td>5.00</td><td>5.00</td><td>5.00</td></tr><tr><td>1.40</td><td>1.07</td><td>1.16</td><td>1.28</td><td></td><td>2.87</td><td></td><td></td><td></td><td></td></tr><tr><td>30.52</td><td>57.12</td><td>49.12</td><td>33.89</td><td>69.83</td><td>63.83</td><td>27.00</td><td>66.00</td><td>38.00</td><td>53.00</td></tr><tr><td>32.50</td><td>25.95</td><td>26.10</td><td>25.71</td><td>22.73</td><td>29.50</td><td>16.00</td><td>19.00</td><td>17.00</td><td>17.00</td></tr><tr><td>169.82</td><td>108.49</td><td>100.37</td><td>111.26</td><td>95.57</td><td>95.11</td><td></td><td></td><td></td><td></td></tr><tr><td>338.77</td><td>210.82</td><td>195.24</td><td>217.22</td><td>195.99</td><td>213.23</td><td></td><td></td><td></td><td></td></tr><tr><td>45.10</td><td>27.82</td><td>25.17</td><td>28.35</td><td>21.38</td><td>26.76</td><td></td><td></td><td></td><td></td></tr><tr><td>149.75</td><td>89.50</td><td>78.83</td><td>91.98</td><td>75.64</td><td>111.95</td><td></td><td></td><td></td><td></td></tr><tr><td>33.03</td><td>17.24</td><td>14.05</td><td>16.94</td><td>13.59</td><td>24.50</td><td></td><td></td><td></td><td></td></tr><tr><td>2.74</td><td>1.84</td><td>2.02</td><td>2.28</td><td>1.76</td><td>3.27</td><td></td><td></td><td></td><td></td></tr><tr><td>24.13</td><td>12.57</td><td>9.52</td><td>12.39</td><td>11.27</td><td>18.62</td><td></td><td></td><td></td><td></td></tr><tr><td>4.93</td><td>2.49</td><td>1.79</td><td>2.35</td><td>1.86</td><td>3.56</td><td></td><td></td><td></td><td></td></tr><tr><td>24.82</td><td>12.87</td><td>9.07</td><td>11.71</td><td>10.89</td><td>25.09</td><td></td><td></td><td></td><td></td></tr><tr><td>4.98</td><td>2.75</td><td>2.00</td><td>2.48</td><td>2.26</td><td>6.06</td><td></td><td></td><td></td><td></td></tr><tr><td>13.14</td><td>7.87</td><td>5.96</td><td>6.98</td><td>6.34</td><td>19.18</td><td></td><td></td><td></td><td></td></tr><tr><td>1.83</td><td>1.20</td><td>0.94</td><td>1.04</td><td>0.99</td><td>3.19</td><td></td><td></td><td></td><td></td></tr><tr><td>11.57</td><td>8.30</td><td>6.97</td><td>7.05</td><td>6.49</td><td>22.88</td><td></td><td></td><td></td><td></td></tr><tr><td>1.80</td><td>1.28</td><td>1.13</td><td>1.09</td><td>0.93</td><td>3.37</td><td></td><td></td><td></td><td></td></tr><tr><td>9.70</td><td>8.63</td><td>9.51</td><td>10.43</td><td>9.73</td><td>2.74</td><td></td><td></td><td></td><td></td></tr><tr><td>1.68</td><td>1.22</td><td>1.10</td><td>1.41</td><td>1.40</td><td>0.65</td><td></td><td></td><td></td><td></td></tr><tr><td>0.30</td><td>0.39</td><td>0.54</td><td>0.49</td><td>0.44</td><td>0.47</td><td></td><td></td><td></td><td></td></tr><tr><td>1.22</td><td>1.38</td><td>1.09</td><td>0.77</td><td>1.09</td><td>0.38</td><td>1.07</td><td>0.54</td><td>0.67</td><td>1.00</td></tr></tbody></table>
<table><thead><tr><th>MJ-1</th><th>MJ-2</th><th>MJ-3</th><th>MJ-4a</th><th>MJ-5</th><th>MJ-6</th><th>MJ-7</th><th>MJ-8</th><th>MJ-9a</th><th>MJ-10</th><th>MJ-11</th><th>PAN-01</th><th>PAN-02</th></tr></thead><tbody><tr><td>68.38</td><td>63.89</td><td>69.10</td><td>69.02</td><td>73.06</td><td>73.43</td><td>70.16</td><td>71.57</td><td>69.75</td><td>70.76</td><td>71.72</td><td>68.92</td><td>66.57</td></tr><tr><td>0.63</td><td>0.76</td><td>0.51</td><td>0.52</td><td>0.30</td><td>0.17</td><td>0.44</td><td>0.29</td><td>0.54</td><td>0.35</td><td>0.33</td><td>0.54</td><td>0.48</td></tr><tr><td>14.99</td><td>15.38</td><td>14.14</td><td>14.37</td><td>13.61</td><td>14.30</td><td>14.01</td><td>14.31</td><td>14.46</td><td>14.12</td><td>13.90</td><td>15.19</td><td>15.15</td></tr><tr><td>4.62</td><td>6.04</td><td>3.96</td><td>3.34</td><td>2.79</td><td>1.69</td><td>3.62</td><td>2.95</td><td>4.04</td><td>3.16</td><td>2.94</td><td>4.14</td><td>4.90</td></tr><tr><td>0.08</td><td>0.10</td><td>0.08</td><td>0.09</td><td>0.03</td><td>0.02</td><td>0.05</td><td>0.03</td><td>0.09</td><td>0.05</td><td>0.04</td><td>0.07</td><td>0.01</td></tr><tr><td>1.11</td><td>1.96</td><td>1.05</td><td>1.10</td><td>0.45</td><td>0.33</td><td>0.69</td><td>0.58</td><td>1.01</td><td>0.71</td><td>0.44</td><td>0.90</td><td>1.29</td></tr><tr><td>2.69</td><td>3.25</td><td>2.46</td><td>2.59</td><td>1.67</td><td>1.51</td><td>2.20</td><td>1.90</td><td>2.36</td><td>2.06</td><td>1.75</td><td>1.40</td><td>2.58</td></tr><tr><td>4.14</td><td>4.50</td><td>4.44</td><td>4.76</td><td>3.62</td><td>3.96</td><td>4.01</td><td>3.99</td><td>4.30</td><td>4.30</td><td>4.14</td><td>3.12</td><td>3.84</td></tr><tr><td>3.75</td><td>1.39</td><td>3.37</td><td>2.78</td><td>4.14</td><td>3.89</td><td>3.61</td><td>3.79</td><td>2.61</td><td>3.41</td><td>3.82</td><td>4.75</td><td>4.23</td></tr><tr><td>0.13</td><td>0.27</td><td>0.13</td><td>0.15</td><td>0.06</td><td>0.03</td><td>0.09</td><td>0.09</td><td>0.11</td><td>0.08</td><td>0.07</td><td>0.12</td><td>0.11</td></tr><tr><td>100.50</td><td>97.54</td><td>99.23</td><td>98.72</td><td>99.73</td><td>99.33</td><td>98.88</td><td>99.50</td><td>99.27</td><td>99.00</td><td>99.14</td><td>99.15</td><td>99.16</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>2.60</td><td>3.82</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>213.16</td><td>183.97</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>483.31</td><td>518.08</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>33.68</td><td>15.12</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>5.40</td><td>4.33</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>38.10</td><td>42.64</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>1.84</td><td>2.52</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>29.06</td><td>18.12</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>126.89</td><td>134.57</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>30.84</td><td>28.64</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>1340.77</td><td>1263.67</td></tr><tr><td>3765</td><td>4556</td><td>3027</td><td>3141</td><td>1799</td><td>1001</td><td>2638</td><td>1739</td><td>3225</td><td>2098</td><td>1966</td><td>3225</td><td>2848</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>119.78</td><td>118.36</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>10.04</td><td>11.64</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>42.85</td><td>51.62</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>20.32</td><td>24.57</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>15.67</td><td>17.07</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>5.68</td><td>7.18</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>1.78</td><td>1.79</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>36.54</td><td>24.81</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>25.19</td><td>22.08</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>146.63</td><td>83.42</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>293.09</td><td>185.65</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>34.01</td><td>23.49</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>125.72</td><td>99.46</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>24.63</td><td>22.72</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>2.67</td><td>2.92</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>17.04</td><td>16.36</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>2.78</td><td>2.74</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>16.57</td><td>16.77</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>3.45</td><td>3.51</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>9.62</td><td>9.56</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>1.43</td><td>1.38</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>9.79</td><td>9.37</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>1.44</td><td>1.38</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>9.89</td><td>5.88</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>1.40</td><td>1.40</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>0.40</td><td>0.47</td></tr><tr><td>0.45</td><td>0.35</td><td>0.43</td><td>0.37</td><td>0.56</td><td>1.06</td><td>0.48</td><td>0.89</td><td>0.24</td><td>0.53</td><td>0.61</td><td>0.47</td><td>0.48</td></tr></tbody></table>
<table><caption>Table 5: Results for whole-rock Sm-Nd isotope measurements by TIMS</caption><thead><tr><th>Sample</th><th>Age (Ma)</th><th>Sm (ppm)</th><th>Nd (ppm)</th><th>147Sm/ 144Nd</th><th>2σ</th><th>143Nd/ 144Nd</th><th>2σ</th><th>143Nd/ 144Nd (t)</th><th>2σ εNd (3.0 Ga)</th><th>2σ</th></tr></thead><tbody><tr><td colspan="11"><strong>Bellur-Nagamangala</strong></td></tr><tr><td>BH50c</td><td>3000</td><td>7.55</td><td>55.0</td><td>0.0830</td><td>0.0003</td><td>0.510354</td><td>0.000008</td><td>0.508709</td><td>0.000010</td><td>-0.7</td><td>0.2</td></tr><tr><td>BH51c</td><td>3000</td><td>13.3</td><td>74.9</td><td>0.1076</td><td>0.0004</td><td>0.510856</td><td>0.000008</td><td>0.508724</td><td>0.000010</td><td>-0.4</td><td>0.2</td></tr><tr><td>BH 51b</td><td>3000</td><td>11.5</td><td>63.8</td><td>0.1087</td><td>0.0004</td><td>0.510865</td><td>0.000003</td><td>0.508711</td><td>0.000004</td><td>-0.7</td><td>0.1</td></tr><tr><td>CHT2</td><td>3000</td><td>8.08</td><td>50.0</td><td>0.0978</td><td>0.0004</td><td>0.510633</td><td>0.000004</td><td>0.508696</td><td>0.000005</td><td>-1.0</td><td>0.1</td></tr><tr><td>CHT3</td><td>3000</td><td>6.55</td><td>36.3</td><td>0.1091</td><td>0.0004</td><td>0.510863</td><td>0.000003</td><td>0.508701</td><td>0.000004</td><td>-0.9</td><td>0.1</td></tr><tr><td>CHT4</td><td>3000</td><td>7.86</td><td>39.2</td><td>0.1211</td><td>0.0005</td><td>0.511081</td><td>0.000002</td><td>0.508682</td><td>0.000002</td><td>-1.3</td><td>0.05</td></tr><tr><td>CHT6</td><td>3000</td><td>9.89</td><td>42.3</td><td>0.1413</td><td>0.0006</td><td>0.511510</td><td>0.000004</td><td>0.508710</td><td>0.000005</td><td>-0.7</td><td>0.1</td></tr><tr><td>Ind 413</td><td>3000</td><td>10.7</td><td>66.2</td><td>0.0976</td><td>0.0004</td><td>0.510708</td><td>0.000004</td><td>0.508774</td><td>0.000005</td><td>0.5</td><td>0.1</td></tr><tr><td>CHT5</td><td>3000</td><td>2.8</td><td>15.8</td><td>0.1066</td><td>0.0004</td><td>0.510771</td><td>0.000003</td><td>0.508659</td><td>0.000004</td><td>-1.7</td><td>0.1</td></tr><tr><td colspan="11"><strong>W of Bellur</strong></td></tr><tr><td>BH54b</td><td>3000</td><td>7.47</td><td>47.4</td><td>0.0953</td><td>0.0004</td><td>0.510610</td><td>0.000004</td><td>0.508722</td><td>0.000005</td><td>-0.5</td><td>0.1</td></tr></tbody></table>
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