Thirumalai, Kaustubh; Cohen, Andrew N; Taylor, Dustin (2023): Individual ostracode valve analyses of Sclerocypris clavularis from modern Lake Turkana sediments - Measurements [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.958976, In: Thirumalai, K et al. (2023): Individual ostracode valve analyses of Sclerocypris clavularis from modern Lake Turkana sediments [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.958974
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Published: 2023-09-12 • DOI registered: 2023-10-11
Abstract:
This dataset contains measurements of individual ostracode valve analyses (IOVA), including stable oxygen (δ¹⁸O) and carbon (δ¹³C) isotopes, and length/width, and mass measurements, at 17 sites across Lake Turkana, eastern Africa. These sediments were collected using a modified Ekman dredge during May–November 1979. The stable isotopic measurements were conducted at the [Paleo² Laboratory at the University of Arizona|https://thirumalai.geo.arizona.edu/] on a Thermo Kiel IV Carbonate Device coupled to a 253 Plus IRMS; the length/width measurements were performed on a MeijiTechno HDZ7000TS Digital Zoom Microscope System, and mass of each valve was measured using a Sartorius Cubis II Ultra-Micro Balance. Details can be found in https://doi.org/10.1029/2022GC010790
Coverage:
Median Latitude: 3.592176 * Median Longitude: 36.136800 * South-bound Latitude: 2.738000 * West-bound Longitude: 35.853200 * North-bound Latitude: 4.361300 * East-bound Longitude: 36.627400
Date/Time Start: 1979-05-01T00:00:00 * Date/Time End: 1979-11-30T00:00:00
Minimum Elevation: -62.0 m * Maximum Elevation: -0.2 m
Event(s):
79-77F * Latitude: 3.541700 * Longitude: 35.958900 * Date/Time Start: 1979-05-01T00:00:00 * Date/Time End: 1979-11-30T00:00:00 * Elevation: -29.0 m * Location: Lake Turkana, Africa * Method/Device: Ekman grab (EG)
79-130F * Latitude: 3.565900 * Longitude: 35.908700 * Date/Time Start: 1979-05-01T00:00:00 * Date/Time End: 1979-11-30T00:00:00 * Elevation: -22.0 m * Location: Lake Turkana, Africa * Method/Device: Ekman grab (EG)
79-147F * Latitude: 3.772300 * Longitude: 36.221400 * Date/Time Start: 1979-05-01T00:00:00 * Date/Time End: 1979-11-30T00:00:00 * Elevation: -9.5 m * Location: Lake Turkana, Africa * Method/Device: Ekman grab (EG)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Thirumalai, Kaustubh | |||
| 2 | Latitude of event | Latitude | Thirumalai, Kaustubh | |||
| 3 | Longitude of event | Longitude | Thirumalai, Kaustubh | |||
| 4 | Elevation of event | Elevation | m | Thirumalai, Kaustubh | ||
| 5 | Hole | H | Thirumalai, Kaustubh | |||
| 6 | Ostracoda, mass | Ostrac m | mg | Thirumalai, Kaustubh | Ultra-micro lab balance, Sartorius Cubis II | Shell mass |
| 7 | Ostracoda, length | Ostrac l | mm | Thirumalai, Kaustubh | Digital Zoom Microscope System, MeijiTechno, HDZ7000TS | |
| 8 | Ostracoda, length | Ostrac l | mm | Thirumalai, Kaustubh | Digital Zoom Microscope System, MeijiTechno, HDZ7000TS | Width |
| 9 | Ostracoda, δ13C | Ostrac δ13C | ‰ PDB | Thirumalai, Kaustubh | Mass spectrometer ThermoFisher Scientific 253plus gas coupled to a KIEL IV carbonate preparation device | |
| 10 | Ostracoda, δ18O | Ostrac δ18O | ‰ PDB | Thirumalai, Kaustubh | Mass spectrometer ThermoFisher Scientific 253plus gas coupled to a KIEL IV carbonate preparation device |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1974 data points