cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.26022/ieda/112710
title: Well water and drill cuttings from north Punjab, Pakistan

description: Groundwater of the Ravi River floodplain is particularly elevated in arsenic (As) on both sides of the Pakistan-India border. To understand the origin of this pattern and generally lower groundwater As concentrations elsewhere in the Punjab plain, 14 new sites were drilled to 12-30 m depth across river floodplains and doabs of Pakistan in a subset of the 215 villages containing 20,348 wells that were tested across the region. Radiocarbon dating of clay cuttings from the Ravi floodplain indicates deposition of the underlying aquifer sands during the Pleistocene. Little if any Holocene accumulation is consistent with floodplain incision inferred from high-resolution elevation. A majority of the 132 samples of sand cuttings across the region were gray in color, indicating partial reduction to Fe(II) oxide coatings. However, as much as a third of the sand cuttings were orange in color, suggesting the prevalence of Fe(III) oxides and less reducing conditions. Associations between groundwater electrical conductivity, dissolved Fe, sulfate, and nitrate across tested villages in the region suggest that some wells are elevated (&gt;10 µg/L) in As due to reductive dissolution of Fe oxides and/or alkali desorption. In the Ravi floodplain, 47% of 6,445 wells tested are elevated in As relative to this threshold, however, compared to only 9% of 14,165 tested wells in doabs and floodplains other than the Ravi. We hypothesize that the oxidation of sulfides, possibly by nitrate, is responsible for elevated As in groundwater in the Ravi floodplain. The As content of aquifer sands outside the Ravi floodplain averages 2±2 mg/kg (n=51) and increases to 4±4 mg/kg (n=66) in the portion of the Ravi floodplain within Pakistan, and 6±7 mg/kg (n=99) upstream in India. Synchrotron spectroscopy and column-based speciation suggests that much of this more abundant As is present in sulfide minerals, and that the As that is evolved is arsenate. Regardless of the mechanisms at play, extreme lateral and vertical heterogeneity of As in well water could be taken advantage of to lower the exposure across the region with more testing and targeting of low As aquifers.
description: Elevated As in groundwater of a floodplain associated with the As content of aquifer sands rather than redox conditions Nisbah Mushtaq, Abida Farooqi, Junaid Ali Khattak, Ishtiaque Hussain, Brian Mailloux, Benjamin C. Bostick, Athena Nghiem, Tyler Ellis and Alexander van Geen. In review.
DOI: 10.26022/ieda/112701
title: 3D diffusion model code for Fe-Mg in olivine

description: This is a simple matlab script to model diffusion of Fe-Mg within a 3D numerical olivine. It uses explicit finite differences methods and the Fe-Mg diffusivity expression of Dohmen and Chakraborty (2007).
description: Shea T, Costa, F., Krimer D., Hammer J.E, (2015) Accuracy and precision of timescales retrieved from diffusion modeling in olivine: a 3D perspective, American Mineralogist, 100:2026-2042.
DOI: 10.26022/ieda/112707
title: Isotope and trace elemental analysis of modern, historical, and sub-fossil Nautilus macromphalus shell from New Caledonia

description: Samples of modern, historical, and sub-fossil Nautilus macromphalus were analyzed to determine changes in a number of isotope and elemental parameters over the last 6,000 years. This species is endemic to New Caledonia, so provides a record of potential environmental changes at this location. We find the proportion metabolic carbon (calculated from data provided here) in the shell changes dramatically since the 1890's.
description: Linzmeier, Benjamin J., Jacobson, Andrew D., Sageman, Bradley B., Hurtgen, Matthew T., Ankney, Meagan E., Masterson, Andrew L., and Landman, Neil H., (2022) "Isotope systematics of subfossil, historical, and modern Nautilus macromphalus from New Caledonia." PLoS One
DOI: 10.26022/ieda/112697
title: U-Pb dating of calcite mineralizations in the Circeo Promontory (Italy)

description: U-Pb absolute age determinations, of slickenfibers along the Circeo thrust (Italy). Samples 2 and 25 refer to NNE-verging compressive slickenfibers, sample 57 refers to an SSW-verging extensional slickenfiber. Analyses carried out at the Preston Cloud Laboratory, University of California, Santa Barbara
DOI: 10.26022/ieda/112696
title: C, O, and Clumped Isotopes Analysis From Circeo (Italy)

description: C, O, and clumped isotopes for calcite slickenfibers and host rock along the CIrceo thrust (Italy)
DOI: 10.26022/ieda/112695
title: Mesostructural data collected in the Circeo promontory (Italy)

description: Bedding and fault data collected in the Circeo promontory (Italy). Data include X and Y (EPSG:32632), data type, strike, dip, rake and sense of movement, and unit
DOI: 10.26022/ieda/112702
title: Bioavailability of Dissolved Organic Matter Varies with Anthropogenic Landcover in the Upper Mississippi River Basin

description: Dataset includes changes in dissolved organic carbon (DOC) concentrations and dissolved organic matter (DOM) composition during a 28-day bio incubation from water samples collected in streams of the Upper Mississippi watershed. Streams from different land-uses (forest/wetland; agriculture; urban) were sampled to look at land-use effects on DOM bioavailability. Changes are observed between day 28 (T28) and day 0 (T0). DOC concentrations are expressed as mg C/L and DOM composition is referred as percent relative abundance (% RA). Also includes are the number of assigned formulae, the modified aromaticity index (AImod), and average mass.
DOI: 10.26022/ieda/112700
title: Tables S1-8: Sr, Pb, O, C, Mo and Fe isotope data measured in epigenetic dolomite and ferric oxide minerals from the Negev Desert, southern Israel.

description: Supporting dataset for a paper: Sources, timing, environmental and tectonic implications of epigenetic mineralization along the Arabian-African plate boundary
description: Erel, Y., Listovsky, N., Matthews, A., Ilani, S., and Avni, Y., 2006, Tracing end-member fluid sources in sub-surface iron mineralization and dolomitization along a proximal fault to the dead sea transform: Geochimica et Cosmochimica Acta, v. 70, p. 5552–5570. Grosz, S., Matthews, A., Ilani, S., Ayalon, A., and Garfunkel, Z., 2006, Iron mineralization and dolomitization in the Paran Fault zone, Israel: implications for low-temperature basinal fluid processes near the Dead Sea Transform: Geofluids, v. 6, p. 137–153. Stein, M., Agnon, A., Katz, A., and Starinsky, A., 2002, Strontium isotopes in discordant dolomite bodies of the Judea Group, Dead Sea basin: Israel Journal of Earth Sciences, v. 51, p. 219–224. Ryb, U., Erel, Y., Matthews, A., Avni, Y., Gordon, G.W., and Anbar, A.D., 2009, Large molybdenum isotope variations trace subsurface fluid migration along the Dead Sea transform: Geology, v. 37, p. 463–466.
DOI: 10.26022/ieda/112698
title: Catchment vegetation, climatic, and sub-surface total carbon and nitrogen contents and isotopic compositions of 18 temperate and sub-tropical Australian wetlands

description: This dataset presents sub-surface sediment-geochemical data and remote sensing (leaf carbon content in g/m2, catchment vegetation cover in %) and climatic data of 18 temperate and sub-tropical Australian wetland. A total of 70 sub-surface sediment samples were analysed for carbon and nitrogen contents and stable isotopic composition down to 4 cm depth. The data is used to investigate statistical links between catchment characteristics and sedimentary geochemistry in order to provide a framework for geochemical proxy interpretations in the geological past. The sites are locate in Tasmania, Victoria, New South Wales, and Queensland.
description: Alexander Francke, Olly Tsimosh, John Tibby, Michael Reid, Michael-Shawn Fletcher, Jonathan J. Tyler (in review): Contemporary controls on terrestrial carbon characteristics in temperate and sub-tropical Australian wetlands. JGR Biogeosciences
DOI: 10.26022/ieda/112693
title: Whole rock geochemistry from the Zongwulong-Qinghainanshan tectonic belt, NE Tibetan Plateau

description: Whole rock geochemistry from the Zongwulong-Qinghainanshan tectonic belt, NE Tibetan Plateau.
DOI: 10.26022/ieda/112694
title: LA-ICP-MS zircon Lu-Hf isotope from the Zongwulong-Qinghainanshan tectonic belt, NE Tibetan Plateau

description: LA-ICP-MS zircon and Lu-Hf isotope analysis from the Zongwulong-Qinghainanshan tectonic belt, NE Tibetan Plateau.
DOI: 10.26022/ieda/112691
title: Constraining diagenesis within shallow water carbonate environments: Insights from clumped and sulfur isotopes

description: The geochemical records of shallow-water carbonate sediments can be influenced by both meteoric and marine diagenesis, where the contribution from each can be difficult to constrain using traditional δ18O and δ13C values. Here sediment cores from Enewetak Atoll have been utilized as a case study, in which clumped isotope-derived temperatures and calculated δ18Ofluid values are combined with the δ34S values of the carbonate-associated sulfate, to differentiate the types of diagenetic alteration which have influenced the geochemical record, thus providing further insights into the extent and timing of carbonate alteration. While sediments at Enewetak Atoll have undergone repeated periods of subaerial exposure, calculated δ18Ofluid values indicate that the amount of meteoric alteration is reliant on the availability of meteoric fluids, as the presence of exposure surfaces alone does not imply that extensive diagenetic alteration has occurred. Additionally, in the deepest zone of the Enewetak cores, it could be determined that the sediments were initially exposed to meteoric fluids, resulting in partial alteration, and later affected by burial and circulation of deep ocean water, resulting in recrystallization within the section, uniformly overprinting the temperature and δ18Ofluid values. The results of this study indicate that by utilizing systematics such as δ34SCAS, ∆47, and δ18Ofluid values, in addition to the more traditional proxies, a detailed understanding of the diagenetic processes which have altered shallow water sediments can be better constrained, allowing for more accurate interpretations of ancient sedimentary records.
DOI: 10.26022/ieda/112692
title: LA-ICP-MS zircon U-Pb ages from the Zongwulong-Qinghainanshan tectonic belt, NE Tibetan Plateau

description: LA-ICP-MS zircon U-Pb ages from the Zongwulong-Qinghainanshan tectonic belt, NE Tibetan Plateau.
DOI: 10.26022/ieda/112686
title: Major and trace element mineral compositions of carbonated serpentinites and listvenites from Oman Drilling Project Hole BT1B (Semail Ophiolite, Oman)

description: We present a petrographic and geochemical dataset acquired on carbonated serpentinites and listvenites from Oman Drilling Project Hole BT1B (Semail Ophiolite, Oman). The overarch aim of data acquisition was to characterize elemental mobility, rock precursor contribution, and changes in fluid compositions during the carbonation sequence converting serpentinized peridotites to carbonated serpentinite, and ultimately listvenites. This dataset includes: i) petrographic information (mineral abundance, occurrence of microstructures), and ii) major and trace element mineral compositions measured by EMP and HR-LA-ICPMS.
description: Decrausaz, T., Godard, M., Menzel, M.D., Parat, F., Oliot, E., Lafay, R., Barou, F., (2022), "Pervasive carbonation of peridotite to listvenite (Semail Ophiolite, Sultanate of Oman): clues from iron partitioning and chemical zoning". European Journal of Mineralogy (in review, major revision).
DOI: 10.26022/ieda/112688
title: Paleoproterozoic Plate Tectonics Recorded in the Northern Margin Orogen, North China Craton

description: The dataset consists of zircon geochronology and baddeleyite geochronology data in the northern margin orogen of the North China craton. Zircons were analyzed using an Agilent 7500a ICP‐MS coupled with a New Wave Research UP193FX Excimer at the Key Laboratory of Continental Collision and Plateau Uplift, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing. Baddeleyite analyses were conducted via laser ablation ICP-MS at the Beijing Geo-Analysis Laboratory.
DOI: 10.26022/ieda/112689
title: Paleoproterozoic Plate Tectonics Recorded in the Northern Margin Orogen, North China Craton geochemistry data

description: Whole-rock major, trace-element, Sr-Nd-Pb-Hf isotopic data of the Yanggao granulite, diabase, and Donggouzi diabase samples from the Northern Margin Orogen, North China Craton. whole-rock major oxide, trace elements, and Sr-Nd-Pb-Hf isotope compositions at the Wuhan Sample Solution Analytical Technology Co., Ltd. in Hubei, China
DOI: 10.26022/ieda/112684
title: Lunar meteorites from northern Africa, Supporting Information

description: Supporting Information file for Korotev R. L. and Irving A. J. (2021) Lunar meteorites from northern Africa. Meteoritics & Planetary Science 56, 206-240. Mainly composition data.
description: Korotev R. L. and Irving A. J. (2021) Lunar meteorites from northern Africa. Meteoritics & Planetary Science 56(2), 206-240
DOI: 10.26022/ieda/112685
title: 10-Be Surface Exposure Ages along the Blue Cut Fault in Joshua Tree National Park, California

description: To better evaluate the late Pleistocene slip rate history of the Blue Cut Fault in Joshua Tree National Park, we constrain the ages of six depositional surfaces that are correlated and offset along the fault. We collect 38 Beryllium-10 surface exposure samples, using a mixture of surface clast types on each mapped surface unit, including sampling boulder tops, cobbles, and amalgamated pebble clasts. Age agreement between sample types indicates that effects of these processes are negligible, because sample types are differentially affected by inheritance/exhumation. We crush whole rock material, remove all minerals but quartz grains, digest the quartz and proceed to extract the element Beryllium in order to measure the 10-Be/9-Be ratio in the Center for Accelerator Mass Spectrometry at Lawrence Livermore National Laboratory. Seven of our samples were processed at Arizona State University, while the rest were processed jointly at San José State University and Lawrence Livermore National Laboratory, following the procedures of Ditchburn & Whitehead (1994). 10-Be geochronological results, in combination with geomorphic mapping indicate multiple ages of offset alluvial surfaces that range from the oldest mapped Qf1a surface of &gt;129 ka, to the youngest offset Qf3b surface of 13.2 ± 1 ka (2𝞂). In addition, we find good agreement between ages of different sample types for each surface. See Guns et al. (2022) for further information.
description: Guns, Katherine; Bennett, Richard; Blisniuk, Kimberly; Walker, Alianora; Hidy, Alan; & Heimsath, Arjun. (Accepted, Sep. 2022) Steady Long-term Slip Rate on the Blue Cut Fault: Implications for Strain Transfer between the San Andreas Fault and Eastern California Shear Zone; Accepted for publication in Geophysical Research Letters
DOI: 10.26022/ieda/112533
title: Calcium and magnesium isotope data for Ediacaran cap dolostones

description: Geochemical data for basal Ediacaran cap dolostones from Namibia, South Australia, Mongolia, United States (Death Valley and Artic Alaska), and Canada (Mackenzie Mts.)
description: Ahm et al., (2019), "An early diagenetic deglacial origin for basal Ediacaran cap dolostones." Earth and Planetary Science Letters, 506: 292-307.
DOI: 10.26022/ieda/112568
title: Results of INAA for samples from the 76001 drive tube

description: Concentrations of 24 chemical elements obtained by instrumental neutron activation analysis (INAA) in regolith samples taken at half-centimeter dissection intervals (N=62) of the 76001 drive tube (31 cm) taken at station 6 (North Massif) of the Apollo 17 landing site. Concentrations of 23 chemical elements obtained by instrumental neutron activation analysis (INAA) on fines (&lt;0.25 mm) and lithic fragments (0.1-3.9 mg each) from regolith samples collected on the Luna 16 (N=23), Luna 20 (N= 33), and Luna 24 (N=18) missions.
description: Korotev R. L. (2022) "Composition of the Apollo 17 drive tube 76001 and the nonmare lithologies of the North Massif and Luna 20." Meteoritics & Planetary Science, 57(9),1759-1773.
DOI: 10.26022/ieda/112680
title: Trace element maps of four zircon reference materials using LA-ICP-MS and FIB-SEM-based TOF-SIMS

description: This dataset provides high spatial resolution trace element maps of four zircon reference materials: 91500 (Ontario, Canada), Mud Tank (Northern Territory, Australia), Temora (New South Wales, Australia), and Plešovice (South Bohemia, Czech Republic), as well as zircon crystals from the Mount Dromedary/Gulaga Igneous Complex, New South Wales, Australia. Qualitative, sub-micrometre resolution focused ion beam scanning electron microscope (FIB-SEM) based time-of-flight secondary ion mass spectrometry (TOF-SIMS) isotope maps and associated spectra are presented. Five-micrometre resolution raster isotope maps created from laser ablation-inductively coupled-mass spectrometry line scans are also presented. These data are useful for assessing trace element variation at very fine scale in zircon reference materials and ‘unknown’ zircon crystals. The data also confirm the usefulness of TOF-SIMS in this novel application to zirconology.
description: North, R., White, L.T., Nancarrow, M., Dosseto, A., and Tanner, D. (accepted 2022, in press). Sub-Micrometre Resolution TOF-SIMS Mapping Used to Assess Homogeneity of Four Zircon Reference Materials. Geostandards and Geoanalytical Research.
DOI: 10.26022/ieda/112672
title: Major- and trace elements as well as radiogenic isotope data from lavas covering the Bushe to Mahabaleshwar Formations (Deccan Traps, India).

description: This dataset comprises major and trace element data as well as Sr-Nd-Pb isotope ratios from volcanic rocks sampled from a continious 1200 m thick profile covering the most volumnious stage of the Deccan LIP. All isotope ratios were age-corrected for an assumed age of 66 Ma.
description: Patrick A. Hoyer, Karsten M. Haase, Marcel Regelous, Frédéric Fluteau, (in review), "Geochemical ‘cycles’ in the upper Deccan lavas: Implications for the magma plumbing system of flood basalt provinces"
DOI: 10.26022/ieda/112550
title: Chemical data for the hydrothermal experiments

description: Composition of minerals (wt%) determined with EPMA and SEM-EDS. Composition of the sampled fluids in the experiments at 500 bars.
DOI: 10.26022/ieda/112541
title: Experimental and calculation data KK203 diamond

description: The dataset includes EMPA and X-ray diffraction data of an olivine with composition Fo100 found within a super-deep diamond called KK203. XRD data were collected using a Rigaku Oxford Diffraction SuperNova single-crystal diffractometer, equipped with a Dectris Pilatus 200 K area detector and with a Mova X-ray microsource. A monochromatized MoKalpha radiation (λ = 0.71073 Å), working at 50 kV and 0.8 mA.
description: Nestola, Regier, Luth, Pearson, Stachel, McCammon, Wenz, Jacobsen, Anzolini, Bindi, Harris (2022) Extreme redox variations in a superdeep diamond from a subducted slab. Nature,
DOI: 10.26022/ieda/112525
title: Data for Fault gouge dating in the Spanish Pyrenees: Fault ages, propagation sequence, wall-rock provenance, and thermal constraints

description: Data for Haines, S., & van der Pluijm, B., `Fault gouge dating in the Spanish Pyrenees: Fault ages, propagation sequence, wall-rock provenance, and thermal constraints´ by Haines, S., van der Pluijm, B. For 'Tectonics' (2022). The data consist of sample locations, X-ray diffraction (XRD) data for mineralogy of several size fractions of fault gouge clays, and Ar-Ar geochronology data for a subset of the clay samples. The data are the core of a mineralogy and geochronology study of clay minerals in fault gouge in the SE Pyrenees of Spain, specifically neoformed illite in the clay gouge, which can be related to fault motion. By characterising the clay mineral population in the fault gouge with XRD, and dating the same materials with Argon/Argon geochronology, an age of the clay minerals in the gouge can then be determined. The age of the clay minerals is age at which the fault gouge formed, and thus can be related to the time of slip of the fault while within a certain temperature window (here 50 - 160 C).
description: Haines, S., H., van der Pluijm, B., `Fault gouge dating in the Spanish Pyrenees: Fault ages, propagation sequence, wall-rock provenance, and thermal constraints´ by Haines, S., van der Pluijm, B. For 'Tectonics'
DOI: 10.26022/ieda/112531
title: Pampean loess chronology, physical, chemical, and provenance characterization

description: The present dataset includes measurements of feldspar luminescence dating using the protocol of post-infrared stimulated luminescence signal measured at 290ºC, grain size distribution determinations using laser-diffraction, organic matter and calcium carbonate contents measured through loss on ignition, and isotopic (Nd and Sr) analyses using a Thermal Ionization Multicollector Mass Spectrometer on three loess sections (Lozada, 31.65°S; 64.13°W; Tortugas, 32.72°S; 61.80°W; and Gorina, 34.90°S; 58.02°W) across the Pampean Plain. Bulk densities and mass accumulation rate estimations for the three loess sections are included in this dataset. Additionally, a compilation of potential source areas of dust to the East Antarctic Plateau, and a compilation of paleo precipitation proxy records of southern South America are presented. Finally, the results from two isotope unmixing models analyzing the dust contributions of the potential source areas to the Pampean loess and the East Antarctic Plateau are also included in the dataset. The purpose of this dataset is to compare the provenance and accumulation rates of dust deposited during the Last Glacial Maximum at different sites: the Pampean loess in terrestrial environments, and long-range dust recovered at the East Antarctic Plateau.
DOI: 10.26022/ieda/112367
title: The Ca and Mg isotope record of the Cryogenian Trezona carbon isotope excursion

description: The Trezona carbon isotope excursion is recorded on five different continents in platform carbonates deposited prior to the end-Cryogenian Marinoan glaciation (&gt;635 Ma) and represents a change in carbon isotope values of 16–18‰. In this study, we combine calcium, magnesium, and strontium isotope geochemistry with a numerical model of carbonate diagenesis to disentangle the degree to which the Trezona excursion reflects changes in global seawater chemistry versus local shallow-water platform environments. Our analysis demonstrates that the most extreme carbon isotope values (∼-10‰ versus +10‰) are preserved in former platform aragonite that was neomorphosed to calcite during sediment-buffered conditions and record the primary carbon isotope composition of platform-top surface waters. We also find that the nadir of the Trezona excursion is associated with a fractional increase in siliciclastic sediments, whereas the recovery from the excursion correlates with a relative increase in carbonate.
description: Ahm, A.-S.C., et al., The Ca and Mg isotope record of the Cryogenian Trezona carbon isotope excursion. Earth and Planetary Science Letters, 2021. 568: p. 117002.
DOI: 10.26022/ieda/112521
title: Geochemistry of mineral springs on Taranaki, New Zealand

description: The dataset includes the fluid geochemistry of mineral waters on Taranaki sampled in 2020. The data include major chemistry and isotopic composition of helium and carbon. These data are published in a paper entitled "Magmatic carbon and helium in springs reveals the vitality of a dormant volcano, Taranaki, New Zealand".
description: Werner, C., Schipper, I., Cronin, S., Barry, P., Stewart, M., 2022, Magmatic carbon and helium in springs reveals the vitality of a dormant volcano, Taranaki, New Zealand, in review at GRL