Jena, Sanjit Kumar; Bhushan, Ravi; Jena, Partha S; Bharti, Nisha; Sudheer, A K; Sanyal, Prasanta; Shivam, Ajay; Dhabi, Ankur: Magnesium/Calcium and δ¹⁸O measurements on Trilobatus sacculifer (w/s), and paleotemperature and paleosalinity records of sediment core SK-312/12 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.974311 (dataset in review), In: Jena, SK et al.: Radiocarbon age and chronology of sediment core SK-312/12, along with Magnesium/Calcium and δ¹⁸O measurements on Trilobatus sacculifer (w/s), and paleotemperature and paleosalinity records [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.974306 (dataset in review)
Abstract:
Sediment core SK-312/12 was collected from the Equatorial Indian Ocean at 3750m b.s.l.. Stable oxygen isotopic analysis of Trilobatus sacculifer (w/s) was carried out in 250-355µm size fraction. Mg/Ca analysis of Trilobatus sacculifer (w/s) (250-355µm) was carried out following the cleaning protocol developed by Barker et al. 2003, the method for foraminiferal Mg/Ca analysis. Paleotemperature was reconstructed using the equation: Mg/Ca (mmol/mol) = 0.24 * exp(0.097T), given by Hollstein et al., 2017. The seawater oxygen isotopic record was obtained using the equation: T (⁰C) = 17 – 4.52 (δ18Ocarb - δ18Osw) + 0.03 (δ18Ocarb - δ18Osw)2, given by Erez & Luz, 1983. Paleosalinity was reconstructed using the equation: δ18Osw (VSMOW) = -8.89 + 0.27 * Ssw, given by Srivastava et al., 2007.
Related to:
Jena, Sanjit Kumar; et al. (in review): Indian Monsoon and North Atlantic Tele-climatic Controls upon Arabian Sea High Salinity Water Variability during the Last Glacial-Interglacial Transition.
Project(s):
Coverage:
Latitude: -0.006800 * Longitude: 65.004830
Date/Time Start: 2014-05-16T00:00:00 * Date/Time End: 2014-05-16T00:00:00
Minimum DEPTH, sediment/rock: 0.015 m * Maximum DEPTH, sediment/rock: 0.695 m
Event(s):
SK312/12-13 * Latitude: -0.006800 * Longitude: 65.004830 * Date/Time: 2014-05-16T00:00:00 * Elevation: -3750.0 m * Recovery: 5.5 m * Campaign: SK312 * Basis: Sagar Kanya * Method/Device: Gravity corer (GC)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Jena, Sanjit Kumar | Geocode | |
| 2 | AGE | Age | ka BP | Jena, Sanjit Kumar | Geocode | |
| 3 | Trilobatus sacculifer, δ18O | T. sacculifer δ18O | ‰ PDB | Jena, Sanjit Kumar | w/s | |
| 4 | Trilobatus sacculifer, Magnesium/Calcium ratio | T. sacculifer Mg/Ca | mmol/mol | Jena, Sanjit Kumar | w/s | |
| 5 | Sea sub-surface temperature | Sea SubT | °C | Jena, Sanjit Kumar | ||
| 6 | δ18O, seawater, reconstructed | δ18Osw | ‰ | Jena, Sanjit Kumar | ||
| 7 | Sea sub-surface salinity | Sea SubS | Jena, Sanjit Kumar | PSU |
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:
136 data points
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