Prow-Fleischer, Ashley; Blättler, Clara L; Todes, Jordan; Kemeny, Preston C; Todaro, Simona; He, Tianchen; van der Schootbrugge, Bas; Payne, Jonathan L (2025): Calcium and Trace Elemental Ratios of Late Triassic-Early Jurassic Carbonate Platforms (Val Adrara) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.976695
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Published: 2025-02-25 • DOI registered: 2025-03-26
Abstract:
Calcium isotope ratios (δ44Ca) and minor/trace elemental ratios (Mn, Sr, U, V, Cr, Fe /(Ca + Mg)) were measured from bulk carbonate powders in 2023 on samples collected in 2006 from an outcropping near Val Adrara, Lombardy Basin in the Italian Alps region using MC-ICP-MS at University of Chicago. Samples were collected with rock hammers and chemical measurements were performed on samples at an average resolution of 15 m. These deposits represent a shallow carbonate platform active during the Late Triassic (Rhaetian stage, ~199.7 Ma) to Early Jurassic (Hettangian stage, ~196.5 Ma)(van der Schootbrugge, 2008,doi:10.1029/2007GC001914). Carbon (δ13C), oxygen (δ18O), calcium (δ44Ca) isotope and minor/trace elemental ratios (Mn, Sr, U, V, Cr, Fe /(Ca + Mg)) were also measured in 2023 from samples collected from an outcrop near Mount Sparagio, Sicily in 2022. Carbon and oxygen isotope ratios were measured on a Finnigan MAT 253 mass spectrometer. Chemical analyses were performed at a resolution of approximately 5 m. These deposits represent a transitional to evaporitic setting during the Late Triassic (Rhaetian stage, exact dates uncertain) to Early Jurassic (Hettangian stage) (Todaro et al., 2022; doi:10.3389/feart.2022.875466). These analyses were performed to investigate potential differences in diagenetic alteration at the two sites, Val Adrara and Mount Sparagio, across the Triassic-Jurassic transition. The data is associated with the publication Prow-Fleischer et al., (2025), doi:10.1016/j.chemgeo.2024.122530.
Keyword(s):
Supplement to:
Prow-Fleischer, Ashley; Lu, Zunli; Blättler, Clara L; He, Tianchen; Singh, Pulkit; Kemeny, Preston C; Todes, Jordan; Pohl, Alexandre; Bhattacharya, Tripti; van de Schootbrugge, Bas; Wignall, Paul; Todaro, Simona; Payne, Jonathan L (2025): Calcium isotopes support spatial redox gradients on the Tethys European margin across the Triassic-Jurassic boundary. Chemical Geology, 673, 122530, https://doi.org/10.1016/j.chemgeo.2024.122530
Related to:
Prow-Fleischer, Ashley; Blättler, Clara L; Todes, Jordan; Kemeny, Preston C; Todaro, Simona; He, Tianchen; van der Schootbrugge, Bas; Payne, Jonathan L (2025): Calcium and Trace Elemental Ratios of Late Triassic-Early Jurassic Carbonate Platforms (Mount Sparagio) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.975259
References:
Todaro, Simona; Rigo, Manuel; Di Stefano, Pietro; Aiuppa, Alessandro; Chiaradia, Massimo (2022): End-Triassic Extinction in a Carbonate Platform From Western Tethys: A Comparison Between Extinction Trends and Geochemical Variations. Frontiers in Earth Science, 10, 875466, https://doi.org/10.3389/feart.2022.875466
van de Schootbrugge, Bas; Payne, Jonathan L; Tomasovych, Adam; Pross, Jörg; Fiebig, J; Benbrahim, M; Föllmi, Karl B; Quan, Tracy M (2008): Carbon cycle perturbation and stabilization in the wake of the Triassic-Jurassic boundary mass-extinction event. Geochemistry, Geophysics, Geosystems, 9(4), 2007GC001914, https://doi.org/10.1029/2007GC001914
Funding:
National Science Foundation (NSF), grant/award no. 2120406: Collaborative Research: Testing the reduction of aerobic habitat as a common kill mechanism for major mass extinction events
National Science Foundation (NSF), grant/award no. 2121445: Collaborative Research: Testing the reduction of aerobic habitat as a common kill mechanism for major mass extinction events
Coverage:
Latitude: 45.724814 * Longitude: 9.958969
Date/Time Start: 2006-10-01T00:00:00 * Date/Time End: 2006-10-01T00:00:00
Event(s):
ValAdrara_Alps (LVA) * Latitude: 45.724814 * Longitude: 9.958969 * Date/Time: 2006-10-01T00:00:00 * Location: Italian Alps * Campaign: ValAdrara_LombardyBasin * Basis: Sampling on land * Method/Device: Hammer (HAM)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | ||||
| 2 | LATITUDE | Latitude | Geocode | |||
| 3 | LONGITUDE | Longitude | Geocode | |||
| 4 | Stratigraphic height | Strat height | m | |||
| 5 | Date | Date | of analysis | |||
| 6 | δ44/40 Ca, bulk carbonate | δ44/40 Ca bulk carb | ‰ ASW | Blättler, Clara L | Multicollector inductively coupled plasma mass spectrometer (MC-ICP-MS), ThermoFisher Scientific, Neptune XT | Samples are reported relative to seawater by setting the δ44/40Ca value of 915b equal to -1.15 ‰ |
| 7 | δ44/40 Ca, standard deviation | δ44/40 Ca std dev | ± | Blättler, Clara L | Multicollector inductively coupled plasma mass spectrometer (MC-ICP-MS), ThermoFisher Scientific, Neptune XT | 1 sigma |
| 8 | Strontium/(Calcium+Magnesium) ratio | Sr/(Ca+Mg) | mol/mol | Todes, Jordan | Inductively Coupled Plasma Mass Spectrometry; Thermo Fischer Scientific (USA), iCAP RQ | |
| 9 | Magnesium/(Calcium+Magnesium) ratio | Mg/(Ca+Mg) | mol/mol | Todes, Jordan | Inductively Coupled Plasma Mass Spectrometry; Thermo Fischer Scientific (USA), iCAP RQ | |
| 10 | Uranium/(Calcium+Magnesium) ratio | U/(Ca+Mg) | mol/mol | Todes, Jordan | Inductively Coupled Plasma Mass Spectrometry; Thermo Fischer Scientific (USA), iCAP RQ | |
| 11 | Vanadium/(Calcium+Magnesium) ratio | V/(Ca+Mg) | mol/mol | Todes, Jordan | Inductively Coupled Plasma Mass Spectrometry; Thermo Fischer Scientific (USA), iCAP RQ | |
| 12 | Chromium/(Calcium+Magnesium) ratio | Cr/(Ca+Mg) | mol/mol | Todes, Jordan | Inductively Coupled Plasma Mass Spectrometry; Thermo Fischer Scientific (USA), iCAP RQ | |
| 13 | Manganese/(Calcium+Magnesium) ratio | Mn/(Ca+Mg) | mol/mol | Todes, Jordan | Inductively Coupled Plasma Mass Spectrometry; Thermo Fischer Scientific (USA), iCAP RQ | |
| 14 | Iron/(Calcium+Magnesium) ratio | Fe/(Ca+Mg) | mol/mol | Todes, Jordan | Inductively Coupled Plasma Mass Spectrometry; Thermo Fischer Scientific (USA), iCAP RQ |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
258 data points