Mejía, Luz María; Bernasconi, Stefano M; Fernandez, Alvaro; Zhang, Hongrui; Guitián, José; Jaggi, Madalina; Taylor, Victoria E; Perez-Huerta, Alberto; Stoll, Heather M (2025): Clumped isotope single replicate measurements from pure coccoliths of the North Atlantic (ODP Site 162-982 since the Miocene: 1.99-16 Ma) and Iceland sediment trap [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.987194
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Published: 2025-11-10 • DOI registered: 2025-11-10
Abstract:
This dataset contains the raw clumped isotope individual measurements (Δ47) of pure coccolith calcite from ODP Site 982 in the North Atlantic between the Mid Miocene and the Quaternary (16-1.99 Ma; 524.55-43.99 m (mcd)), and pure Coccolithus pelagicus from a sediment trap sample in the Iceland Sea (70.23° N; 9.75° W; 1884 m) (Mejia et al., 2025;doi:10.21203/rs.3.rs-6393158/v1). We measured clumped isotopes using a Kiel IV-Thermo Scientific MAT 253 at ETH Zürich, following the LIDI protocol (Müller et al., 2017; doi:10.1002/rcm.7878), including a Porapak Q trap (-40 °C) to eliminate residual halo/hydrocarbon and reduced sulfur compounds. Nine to 21 replicates of ~110 μg carbonate were measured depending on sample availability. Carbonate standardization followed the use of carbonate standard scheme (I-CDES (InterCarb carbon dioxide equilibrium scale; LIDI protocol (Bernasconi et al., 2021; doi:10.1029/2020GC009588)). Contaminated replicates were eliminated from the dataset when the Δ48 offset was > 2 and 49 parameter values > 2 ‰ (included in this dataset), which is considered a standard protocol in clumped isotope measurements.
Keyword(s):
Supplement to:
Mejía, Luz María; Bernasconi, Stefano M; Fernandez, Alvaro; Zhang, Hongrui; Guitián, José; Jaggi, Madalina; Taylor, Victoria E; Perez-Huerta, Alberto; Stoll, Heather M (preprint): Modest, not extreme, northern high latitude amplification during the Miocene shown by coccolith clumped isotopes. https://doi.org/10.21203/rs.3.rs-6393158/v1
References:
Bernasconi, Stefano M; Daëron, M; Bergmann, Kristin D; Bonifacie, Magali; Meckler, Anna Nele; Affek, Hagit P; Anderson, Noah; Bajnai, David; Barkan, Eugeni; Beverly, Emily J; Blamart, Dominique; Burgener, Landon; Calmels, D; Chaduteau, C; Clog, Matthieu; Davidheiser-Kroll, B; Davies, A; Dux, F; Eiler, J; Elliott, B; Fetrow, Anne C; Fiebig, J; Goldberg, Samuel; Hermoso, Michael; Huntington, Katharine W; Hyland, Ethan; Ingalls, Miquela; Jaggi, M; John, Cédric M; Jost, A B; Katz, S; Kelson, J; Kluge, T; Kocken, Ilja; Laskar, Amzad; Leutert, Thomas Jan; Liang, Dayong; Lucarelli, Jamie; Mackey, Tyler; Mangenot, X; Meinicke, Niklas; Modestou, Sevasti; Müller, Inigo A; Murray, S; Neary, A; Packard, N; Passey, B H; Pelletier, E; Petersen, Sierra V; Piasecki, A; Schauer, A; Snell, Kathryn; Swart, Peter K; Tripati, A; Upadhyay, D; Vennemann, Torsten W; Winkelstern, Ian; Yarian, D; Yoshida, Naohiro; Zhang, Naizhong; Ziegler, Martin (2021): InterCarb: A Community Effort to Improve Interlaboratory Standardization of the Carbonate Clumped Isotope Thermometer Using Carbonate Standards. Geochemistry, Geophysics, Geosystems, 22(5), https://doi.org/10.1029/2020GC009588
Müller, Inigo A; Fernandez, Alvaro; Radke, Jens; van Dijk, Joep; Bowen, Devon; Schwieters, Johannes; Bernasconi, Stefano M (2017): Carbonate clumped isotope analyses with the long-integration dual-inlet (LIDI) workflow: scratching at the lower sample weight boundaries. Rapid Communications in Mass Spectrometry, 31(12), 1057-1066, https://doi.org/10.1002/rcm.7878
Coverage:
Latitude: 57.516700 * Longitude: -15.850000
Date/Time Start: 1995-07-16T12:00:00 * Date/Time End: 1995-07-19T02:25:00
Minimum Elevation: -1134.0 m * Maximum Elevation: -1134.0 m
Event(s):
162-982B * Latitude: 57.516700 * Longitude: -15.850000 * Date/Time Start: 1995-07-16T12:00:00 * Date/Time End: 1995-07-19T02:25:00 * Elevation: -1134.0 m * Penetration: 614.9 m * Recovery: 488.5 m * Location: North Atlantic Ocean * Campaign: Leg162 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 65 cores; 614.9 m cored; 0 m drilled; 79.4 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Mejía, Luz María | |||
| 2 | Sample code/label | Sample label | Mejía, Luz María | DSDP/ODP/IODP sample designation | ||
| 3 | Run Date/Time | Run Date/Time | Mejía, Luz María | |||
| 4 | Δ47 | Δ47 | ‰ | Mejía, Luz María | Isotope ratio mass spectrometer (IRMS), Thermo Fischer Scientific, MAT253/Kiel IV | Single ∆47 measurement per sample. |
| 5 | Average | avg | Mejía, Luz María | Calculated | ∆47 | |
| 6 | Δ47, standard deviation | Δ47 std dev | ± | Mejía, Luz María | Calculated | |
| 7 | Δ47, standard error | Δ47 std e | ± | Mejía, Luz María | Calculated | |
| 8 | Δ48, offset | Δ48 offset | Mejía, Luz María | Isotope ratio mass spectrometer (IRMS), Thermo Fischer Scientific, MAT253/Kiel IV | Sample contamination indicator when > 2 ‰ | |
| 9 | Δ49 | Δ49 | ‰ | Mejía, Luz María | Isotope ratio mass spectrometer (IRMS), Thermo Fischer Scientific, MAT253/Kiel IV | Sample contamination indicator when > 2 ‰ |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1866 data points