cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.24045643
title: Subduction initiation ophiolites of the SW Pacific I: first-formed MORB-like lavas

description: Data collated from subalkaline lavas and dikes of Palaeogene ophiolites of the SW Pacific in Papua, New Guinea, New Caledonia, and the North Island, New Zealand interpreted as having formed first upon subduction initiation, are investigated to determine whether these are MORB like, similar to other subduction initiation ophiolites and the IBM forearc. SW Pacific ophiolite subalkaline lavas and dikes are mostly tholeiitic basalt; however, calc-alkaline lavas comprise ~ 25% of New Zealand samples. Major element abundances of first-formed subalkaline lavas and dikes of SW Pacific ophiolites are broadly similar to MORB, however incompatible element abundances range from MORB-like to more depleted than MORB and similar to the most enriched IBM forearc basalt (FAB). The reason for the more enriched incompatible-element nature of first-formed lavas and dikes of SW Pacific ophiolites relative to the IBM FAB may be that the sources of the former, unlike the latter, based on recent studies were not subjected to a pre-subduction initiation melt extraction event. Partial melting estimates for first-formed lavas and dikes of SW Pacific ophiolites range from 12–23% of an initial MORB-like source to a maximum of 18% partial melting of this source after 20% melt extraction. Partial melting was due to decompression of a MORB-like source that received little to no slab-derived contributions. Thermobarometry calculations of primitive lavas and dikes with ≥ 8 wt.% MgO and Mg# ≥ 60 show that the mantle source of SW Pacific ophiolites records potential temperatures and pressures of 1341–1431°C and 1.1–1.8 GPa, similar to primitive MORB. These temperatures are at least 30–70°C lower than those required for Central American and IBM first-formed lavas supporting previous studies suggesting a plume-induced subduction initiation origin for Central America and the IBM.
DOI: 10.6084/m9.figshare.25513134
title: A conceptual model for the evolution of a magmatic system based on U-Pb zircon studies on the Devonian granites of Sierra de San Luis, Argentina

description: It is widely acknowledged that thermal models clearly demonstrate that crustal magma bodies should solidify rapidly upon emplacement. Small plutons can cool below the solidus in thousands of years, while even large plutons require hundreds of thousands of years, but not more than a million years. However, recent U-Pb zircon geochronological data contradict these results, strongly suggesting that magmatic systems are often characterized by protracted events. Therefore, a conceptual framework that reconciles thermal models and the geochronology data is necessary. The Devonian foreland magmatism of the Sierra de San Luis is made up of two distinctive <i>suites</i>, the <i>Monzonite suite</i> (&lt;65 wt.% SiO<sub>2</sub>) and the <i>Granite suite</i> (&gt;65 wt.% SiO<sub>2</sub>), both emplaced at ca. 3.7 kbar. Classification of the studied Devonian granitoids is debatable because they have a hybrid I- to A-type granite signature. Based on a robust geochronological U-Pb zircon dataset we corroborate the development of a protracted magmatic activity with three major crystallization events for this Devonian magmatism: 391 ± 1, 384 ± 1, and 379 ± 2 Ma. Considering these geochronological data, we postulate the presence of a deep mush reservoir, where a prolonged magmatic activity, permitted the prolonged crystallization of antecrysts (ca. 395–384 Ma). Migration of the parental magma from the mush reservoir zone occurred near the time of emplacement and culminated in the formation of an ephemeral magma chamber located at shallow levels, where zircon autocrysts crystallized (ca. 379 Ma). Age spectra reported within individual samples support the idea of a massive migration of magma when conditions were favourable (e.g. thermally matured crust). Individual crystallization ages recorded by monazites hosted in two-mica granites are comparable to those obtained from zircons, supporting the presence of a long-lasting hot source. Additional geochronological data indicate that a later thermal event (ca. 353 Ma) could have partially affected some areas of the Devonian magmatic zircons promoting Pb loss, with subsequent partial resetting of the isotopic clock.
DOI: 10.6084/m9.figshare.23943511
title: A newly defined latest Carboniferous-Permian ridge subduction in the southern Altaids: Insights from adakitic, S-type, and I-type granitoids in the northern East Junggar (NW China)

description: Late Palaeozoic evolution of the Chinese Altai-East Junggar orogenic collage is vital for a better understanding of the accretionary evolution in the southern Altaids. This paper reports new geochronological, geochemical, and isotopic data for the magmatic rocks collected from the northern part of the Dulate arc. The ~304.6 Ma tonalite samples present typical adakitic features of high Sr (396–714 ppm), low Y (1.42–2.60 ppm), Yb (0.11–0.24 ppm), and high Sr/Y (177.25–440.23) ratios. Combining high Mg# (55.35–57.21) and depleted isotopic composition (ε<sub>Hf</sub>(<i>t</i>): +9.89 to +13.37 and ε<sub>Nd</sub>(<i>t</i>): +5.36 to +6.06), we suggest that they were derived from the partial melting of a subducted oceanic slab. The ~299.4 Ma monzogranite samples have high A/CNK values (1.08 to 1.25), CIPW normative corundum contents (1.28–3.25 wt.%), and positive ε<sub>Hf</sub>(<i>t</i>) (+5.14 to +8.63) and ε<sub>Nd</sub>(<i>t</i>) (+1.08) values, which are similar to S-type granite that may be generated by the melting of greywackes. The monzogranite (~286.9 Ma) and rhyolitic porphyry (~283.9 Ma) are high-K calc-alkaline and similar to the highly fractionated I-type granites with depleted isotopic features (ε<sub>Hf</sub>(<i>t</i>): +11.68 to +14.99 and +0.75 to +7.18, ε<sub>Nd</sub>(<i>t</i>): +5.91 and +6.18). The monzogranite and rhyolitic porphyry could have been derived from a depleted mantle source, but the rhyolitic porphyry probably suffered partial assimilation of the overlying crust materials. Combining regional rock associations of mafic-ultramafic complexes, adakitic rocks, high-Mg diorites, and A-type granites with close spatial-temporal relationship, we conclude that a mid-oceanic ridge of the Ob-Zaisan Ocean subducted southward beneath the Dulate arc during the latest Carboniferous to Permian. With the opening of the slab window, the upwelling asthenosphere provided high heat flux and triggered various magmatism in the upper plate. We propose that ridge subduction is one of the most effective mechanisms of continental growth in the southern Altaids.
DOI: 10.6084/m9.figshare.24045643.v1
title: Subduction initiation ophiolites of the SW Pacific I: first-formed MORB-like lavas

description: Data collated from subalkaline lavas and dikes of Palaeogene ophiolites of the SW Pacific in Papua, New Guinea, New Caledonia, and the North Island, New Zealand interpreted as having formed first upon subduction initiation, are investigated to determine whether these are MORB like, similar to other subduction initiation ophiolites and the IBM forearc. SW Pacific ophiolite subalkaline lavas and dikes are mostly tholeiitic basalt; however, calc-alkaline lavas comprise ~ 25% of New Zealand samples. Major element abundances of first-formed subalkaline lavas and dikes of SW Pacific ophiolites are broadly similar to MORB, however incompatible element abundances range from MORB-like to more depleted than MORB and similar to the most enriched IBM forearc basalt (FAB). The reason for the more enriched incompatible-element nature of first-formed lavas and dikes of SW Pacific ophiolites relative to the IBM FAB may be that the sources of the former, unlike the latter, based on recent studies were not subjected to a pre-subduction initiation melt extraction event. Partial melting estimates for first-formed lavas and dikes of SW Pacific ophiolites range from 12–23% of an initial MORB-like source to a maximum of 18% partial melting of this source after 20% melt extraction. Partial melting was due to decompression of a MORB-like source that received little to no slab-derived contributions. Thermobarometry calculations of primitive lavas and dikes with ≥ 8 wt.% MgO and Mg# ≥ 60 show that the mantle source of SW Pacific ophiolites records potential temperatures and pressures of 1341–1431°C and 1.1–1.8 GPa, similar to primitive MORB. These temperatures are at least 30–70°C lower than those required for Central American and IBM first-formed lavas supporting previous studies suggesting a plume-induced subduction initiation origin for Central America and the IBM.
DOI: 10.6084/m9.figshare.23943511.v1
title: A newly defined latest Carboniferous-Permian ridge subduction in the southern Altaids: Insights from adakitic, S-type, and I-type granitoids in the northern East Junggar (NW China)

description: Late Palaeozoic evolution of the Chinese Altai-East Junggar orogenic collage is vital for a better understanding of the accretionary evolution in the southern Altaids. This paper reports new geochronological, geochemical, and isotopic data for the magmatic rocks collected from the northern part of the Dulate arc. The ~304.6 Ma tonalite samples present typical adakitic features of high Sr (396–714 ppm), low Y (1.42–2.60 ppm), Yb (0.11–0.24 ppm), and high Sr/Y (177.25–440.23) ratios. Combining high Mg# (55.35–57.21) and depleted isotopic composition (ε<sub>Hf</sub>(<i>t</i>): +9.89 to +13.37 and ε<sub>Nd</sub>(<i>t</i>): +5.36 to +6.06), we suggest that they were derived from the partial melting of a subducted oceanic slab. The ~299.4 Ma monzogranite samples have high A/CNK values (1.08 to 1.25), CIPW normative corundum contents (1.28–3.25 wt.%), and positive ε<sub>Hf</sub>(<i>t</i>) (+5.14 to +8.63) and ε<sub>Nd</sub>(<i>t</i>) (+1.08) values, which are similar to S-type granite that may be generated by the melting of greywackes. The monzogranite (~286.9 Ma) and rhyolitic porphyry (~283.9 Ma) are high-K calc-alkaline and similar to the highly fractionated I-type granites with depleted isotopic features (ε<sub>Hf</sub>(<i>t</i>): +11.68 to +14.99 and +0.75 to +7.18, ε<sub>Nd</sub>(<i>t</i>): +5.91 and +6.18). The monzogranite and rhyolitic porphyry could have been derived from a depleted mantle source, but the rhyolitic porphyry probably suffered partial assimilation of the overlying crust materials. Combining regional rock associations of mafic-ultramafic complexes, adakitic rocks, high-Mg diorites, and A-type granites with close spatial-temporal relationship, we conclude that a mid-oceanic ridge of the Ob-Zaisan Ocean subducted southward beneath the Dulate arc during the latest Carboniferous to Permian. With the opening of the slab window, the upwelling asthenosphere provided high heat flux and triggered various magmatism in the upper plate. We propose that ridge subduction is one of the most effective mechanisms of continental growth in the southern Altaids.
DOI: 10.6084/m9.figshare.23943516
title: Basement differences control granitoid compositions: insights from zircon Hf isotopic mapping of Paleozoic granitoids in the northern Beishan orogenic collage, NW China

description: The source of granitoids in Phanerozoic accretionary orogens is debatable. Paleozoic granitoids are widespread in the southern Central Asian Orogenic Belt (CAOB) and are considered the most eloquent witness to continental crustal growth during the Phanerozoic. This study presents a comprehensive analysis of zircon U-Pb and Lu-Hf isotopic and geochemical data from six Paleozoic granitic plutons in the northern Beishan Orogenic Collage (NBOC). Zircon U-Pb data reveal that these plutons recorded a long-lasting magmatism from the Late Silurian to the Late Carboniferous. The elemental and isotopic data show a major contribution from the Precambrian crustal basement as the source of the Late Silurian to Carboniferous granitoids in the Mingshui – Hanshan massif (MHM). In contrast, the source compositions of the Carboniferous granitoids in the Heiyingshan arc (HYA) indicate a dominant role of juvenile materials. Combined with published data, three magmatic pulses from the Ordovician to Carboniferous were identified in the NBOC: Stage I magmatism (Early Ordovician to Late Silurian) formed in a subduction-related compressional setting, Stage II magmatism (Late Silurian to Early Devonian) occurred in an extensional setting, and Stage III (Carboniferous) formed in a compressional setting. For the MHM, the zircon Hf isotopic mapping results show that the eastern segment was predominantly composed of a Paleoproterozoic basement, whereas the western segment mainly consisted of a young Mesoproterozoic – Neoproterozoic basement. The Heiyingshan magmatic rocks were probably formed as a continental arc during the Mesoproterozoic – Neoproterozoic and accreted to the MHM during the closure of the Paleo-Asian Ocean. Overall, these data indicate that the NBOC had remnants of the ancient Precambrian basement during the Paleozoic. Accordingly, numerous Phanerozoic granitic rocks in the NBOC have mostly resulted from the recycling of ancient crustal materials along with the addition of minor new juvenile materials. Our study has highlighted that systematic basement differences can exert a major influence on the nature of granitoids.
DOI: 10.6084/m9.figshare.23943516.v1
title: Basement differences control granitoid compositions: insights from zircon Hf isotopic mapping of Paleozoic granitoids in the northern Beishan orogenic collage, NW China

description: The source of granitoids in Phanerozoic accretionary orogens is debatable. Paleozoic granitoids are widespread in the southern Central Asian Orogenic Belt (CAOB) and are considered the most eloquent witness to continental crustal growth during the Phanerozoic. This study presents a comprehensive analysis of zircon U-Pb and Lu-Hf isotopic and geochemical data from six Paleozoic granitic plutons in the northern Beishan Orogenic Collage (NBOC). Zircon U-Pb data reveal that these plutons recorded a long-lasting magmatism from the Late Silurian to the Late Carboniferous. The elemental and isotopic data show a major contribution from the Precambrian crustal basement as the source of the Late Silurian to Carboniferous granitoids in the Mingshui – Hanshan massif (MHM). In contrast, the source compositions of the Carboniferous granitoids in the Heiyingshan arc (HYA) indicate a dominant role of juvenile materials. Combined with published data, three magmatic pulses from the Ordovician to Carboniferous were identified in the NBOC: Stage I magmatism (Early Ordovician to Late Silurian) formed in a subduction-related compressional setting, Stage II magmatism (Late Silurian to Early Devonian) occurred in an extensional setting, and Stage III (Carboniferous) formed in a compressional setting. For the MHM, the zircon Hf isotopic mapping results show that the eastern segment was predominantly composed of a Paleoproterozoic basement, whereas the western segment mainly consisted of a young Mesoproterozoic – Neoproterozoic basement. The Heiyingshan magmatic rocks were probably formed as a continental arc during the Mesoproterozoic – Neoproterozoic and accreted to the MHM during the closure of the Paleo-Asian Ocean. Overall, these data indicate that the NBOC had remnants of the ancient Precambrian basement during the Paleozoic. Accordingly, numerous Phanerozoic granitic rocks in the NBOC have mostly resulted from the recycling of ancient crustal materials along with the addition of minor new juvenile materials. Our study has highlighted that systematic basement differences can exert a major influence on the nature of granitoids.
DOI: 10.6084/m9.figshare.25513134.v2
title: A conceptual model for the evolution of a magmatic system based on U-Pb zircon studies on the devonian granites of Sierra de San Luis, Argentina

description: It is widely acknowledged that thermal models clearly demonstrate that crustal magma bodies should solidify rapidly upon emplacement. Small plutons can cool below the solidus in thousands of years, while even large plutons require hundreds of thousands of years, but not more than a million years. However, recent U-Pb zircon geochronological data contradict these results, strongly suggesting that magmatic systems are often characterized by protracted events. Therefore, a conceptual framework that reconciles thermal models and the geochronology data is necessary. The Devonian foreland magmatism of the Sierra de San Luis is made up of two distinctive <i>suites</i>, the <i>Monzonite suite</i> (&lt;65 wt.% SiO<sub>2</sub>) and the <i>Granite suite</i> (&gt;65 wt.% SiO<sub>2</sub>), both emplaced at ca. 3.7 kbar. Classification of the studied Devonian granitoids is debatable because they have a hybrid I- to A-type granite signature. Based on a robust geochronological U-Pb zircon dataset we corroborate the development of a protracted magmatic activity with three major crystallization events for this Devonian magmatism: 391 ± 1, 384 ± 1, and 379 ± 2 Ma. Considering these geochronological data, we postulate the presence of a deep mush reservoir, where a prolonged magmatic activity, permitted the prolonged crystallization of antecrysts (ca. 395–384 Ma). Migration of the parental magma from the mush reservoir zone occurred near the time of emplacement and culminated in the formation of an ephemeral magma chamber located at shallow levels, where zircon autocrysts crystallized (ca. 379 Ma). Age spectra reported within individual samples support the idea of a massive migration of magma when conditions were favourable (e.g. thermally matured crust). Individual crystallization ages recorded by monazites hosted in two-mica granites are comparable to those obtained from zircons, supporting the presence of a long-lasting hot source. Additional geochronological data indicate that a later thermal event (ca. 353 Ma) could have partially affected some areas of the Devonian magmatic zircons promoting Pb loss, with subsequent partial resetting of the isotopic clock.
DOI: 10.6084/m9.figshare.25513134.v3
title: A conceptual model for the evolution of a magmatic system based on U-Pb zircon studies on the Devonian granites of Sierra de San Luis, Argentina

description: It is widely acknowledged that thermal models clearly demonstrate that crustal magma bodies should solidify rapidly upon emplacement. Small plutons can cool below the solidus in thousands of years, while even large plutons require hundreds of thousands of years, but not more than a million years. However, recent U-Pb zircon geochronological data contradict these results, strongly suggesting that magmatic systems are often characterized by protracted events. Therefore, a conceptual framework that reconciles thermal models and the geochronology data is necessary. The Devonian foreland magmatism of the Sierra de San Luis is made up of two distinctive <i>suites</i>, the <i>Monzonite suite</i> (&lt;65 wt.% SiO<sub>2</sub>) and the <i>Granite suite</i> (&gt;65 wt.% SiO<sub>2</sub>), both emplaced at ca. 3.7 kbar. Classification of the studied Devonian granitoids is debatable because they have a hybrid I- to A-type granite signature. Based on a robust geochronological U-Pb zircon dataset we corroborate the development of a protracted magmatic activity with three major crystallization events for this Devonian magmatism: 391 ± 1, 384 ± 1, and 379 ± 2 Ma. Considering these geochronological data, we postulate the presence of a deep mush reservoir, where a prolonged magmatic activity, permitted the prolonged crystallization of antecrysts (ca. 395–384 Ma). Migration of the parental magma from the mush reservoir zone occurred near the time of emplacement and culminated in the formation of an ephemeral magma chamber located at shallow levels, where zircon autocrysts crystallized (ca. 379 Ma). Age spectra reported within individual samples support the idea of a massive migration of magma when conditions were favourable (e.g. thermally matured crust). Individual crystallization ages recorded by monazites hosted in two-mica granites are comparable to those obtained from zircons, supporting the presence of a long-lasting hot source. Additional geochronological data indicate that a later thermal event (ca. 353 Ma) could have partially affected some areas of the Devonian magmatic zircons promoting Pb loss, with subsequent partial resetting of the isotopic clock.
DOI: 10.15468/dl.j6pqr9
title: Occurrence Download

description: A dataset containing 15 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Salvia trichocalycina Benth."
 ]
}

 The dataset includes 15 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0104331-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3886/e192087v1
title: Data and Code for: Equity Concerns are Narrowly Framed

description: Distributional decisions regularly involve multiple payoff components. In a
series of experiments, we show that individuals sometimes exhibit narrow equity
concerns: applying fairness preferences narrowly, on a specific component of
payoffs, rather than on broader payoff consequences. This behavior results
in different distributional decisions depending on which payoff component we
frame individuals to consider. We document narrow equity concerns in an
exceedingly simple setting—in which payoff components are tokens worth 1
cent and 2 cents—and in context-rich applications including tax policy and
worker compensation.

 
 
 <br>
description: N/A
description: Response Rates: N/A -- not survey data
description: Presence of Common Scales: N/A
description: We recruited online participants from Amazon’s Mechanical Turk (MTurk) and from Prolific. MTurk participants must reside in the United States and have an approval rating of at least 95% from at least 100 prior submissions. Prolific participants must choose the United States when asked for their nationality and have an approval rating of at least 95% from at least 100 prior submissions. <br>
description: We recruited online participants from Amazon’s Mechanical Turk (MTurk) and from Prolific. MTurk participants must reside in the United States and have an approval rating of at least 95% from at least
100 prior submissions. Prolific participants must
choose the United States when asked for their nationality and have an approval rating of at least 95%
from at least 100 prior submissions. 
 
 . Smallest Geographic Unit: United States
description: web-based survey;
DOI: 10.15468/dl.m4eusx
title: Occurrence Download

description: A dataset containing 44 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Selaginella decipiens Warb."
 ]
}

 The dataset includes 44 records from 14 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0104332-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.7k8kc7
title: Occurrence Download

description: A dataset containing 1 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Scutellaria botschantzevii M.N.Abdull."
 ]
}

 The dataset includes 1 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0104333-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.kafccs
title: Occurrence Download

description: A dataset containing 1237 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Schizocarphus nervosus (Burch.) van der Merwe"
 ]
}

 The dataset includes 1237 records from 42 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0104334-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.