Barash, Max S; Kuptsov, Vladimir M; Os'kina, Natalia S (1987): Radiocarbon ages and last occurrences of Globorotalia menardii flexuosa and Globoquadrina hexagona in Atlantic sediment cores [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.756672, Supplement to: Barash, MS et al. (1987): Late Quaternary datum levels based on planktic foraminifera in the Atlantic Ocean. Oceanology, 27(3), 313-321
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Abstract:
Ranges of Globorotalia menardii menardii, Gr. menardii flexuosa and Globoquadrina hexagona at time of climatostratigraphic intervals representing oxygen-isotope stages 5-1 are determined by study of dozens of Late Quaternary sediment cores involving constructing paleotemperature curves from planktic foraminifera and oxygen isotope curves for their shells, as well as radiocarbon dating. Gr. menardii flexuosa and Gq. hexagona disappeared about 27-25 ky ago from the subtropical and tropical Atlantic and about 18 ky ago from the equatorial area.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: 0.254658 * Median Longitude: -23.046222 * South-bound Latitude: -31.176667 * West-bound Longitude: -57.288333 * North-bound Latitude: 39.516667 * East-bound Longitude: 12.083333
Minimum Elevation: -5306.0 m * Maximum Elevation: -1240.0 m
Event(s):
A-37t * Latitude: 18.800000 * Longitude: -40.991667 * Elevation: -4920.0 m * Location: Atlantic Ocean * Method/Device: Gravity corer (GC)
A-40t * Latitude: 16.083333 * Longitude: -32.458333 * Elevation: -5306.0 m * Location: Atlantic Ocean * Method/Device: Gravity corer (GC)
AK-1708GC * Latitude: -31.176667 * Longitude: 12.083333 * Elevation: -4140.0 m * Location: Benguela Upwelling * Campaign: AKU3 * Basis: Akademik Kurchatov * Method/Device: Gravity corer (GC)
Comment:
Parentheses indicate least reliable determinations in cores with signs of re-deposition or with non-indicative paleoclimatic curves.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Depth, top/min | Depth top | m | Barash, Max S | ||
| 3 | Depth, bottom/max | Depth bot | m | Barash, Max S | ||
| 4 | Age, dated | Age dated | ka | Barash, Max S | Age, 14C benzol synthesis | |
| 5 | Age, dated standard deviation | Age dated std dev | ± | Barash, Max S | Calculated | |
| 6 | Last occurrence | LO | Barash, Max S | Counting, foraminifera | of Globorotalia menardii flexuosa, cm | |
| 7 | Last occurrence | LO | Barash, Max S | of Globorotalia menardii flexuosa, ka | ||
| 8 | Last occurrence | LO | Barash, Max S | Counting, foraminifera | of Globoquadrina hexagona, cm | |
| 9 | Last occurrence | LO | Barash, Max S | of Globoquadrina hexagona, ka |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
368 data points