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Barash, Max S; Okuneva, Olga K (1981): Planktonic foraminiferas in bottom sediments and Late Quaternary paleotemperatures of surface waters in the North Tropical Atlantic [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.755407, Supplement to: Barash, MS; Okuneva, OK (1981): Late Quaternary paleotemperature fluctuations in the tropical zone of the North Atlantic Ocean (from data on planktonic foraminifera). Oceanology, 21(5), 599-604

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Published: 1981 (exact date unknown) • DOI registered: 2011-01-17

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Abstract:
Distribution of planktonic foraminiferal tests was studied in 15 Upper Quaternary sediment cores from the continental slope of Africa, the Canary and Cape Verde basins, and slopes of the Mid-Atlantic Ridge. In all the cores substantial variations were found in relationship between foraminiferal planktonic species reflecting fluctuations of mean annual temperatures of surface waters. Temperature difference in temperatures between present time and that of the maximum of the stadial of the last continental glaciation glacial stadial (about 18,000 yrs ago) ranges from 8.5°C in the Canary upwelling region to minimum values of 2.0°C in the central part of the ocean, i.e. the southern part of the subtropical gyre. Temperature difference the Holocene optimum and 18,000 yrs ago ranges from 10°C to 3°C. Age estimates are supported by radiocarbon dates.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: 21.270233 * Median Longitude: -32.929396 * South-bound Latitude: 8.618333 * West-bound Longitude: -47.955000 * North-bound Latitude: 30.610000 * East-bound Longitude: -16.966667
Date/Time Start: 1960-01-01T00:00:00 * Date/Time End: 1960-01-01T00:00:00
Event(s):
AK-1715 * Latitude: 22.940000 * Longitude: -43.531667 * Elevation: -4360.0 m * Location: Tropical Atlantic * Method/Device: Gravity corer (GC)
AK6-434GC * Latitude: 26.216667 * Longitude: -19.233333 * Elevation: -4620.0 m * Location: Canary Upwelling * Campaign: AKU6 * Basis: Akademik Kurchatov * Method/Device: Gravity corer (GC)
ML5-367GR * Latitude: 21.433300 * Longitude: -30.001500 * Date/Time: 1960-01-01T00:00:00 * Elevation: -4779.0 m * Campaign: ML5 * Basis: Mikhail Lomonosov * Method/Device: Okean Grab (OKEAN)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
6 datasets

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Datasets listed in this publication series

  1. Barash, MS; Okuneva, OK (1981): (Table 1) Late Quaternary paleotemperatures of surface waters in the North Tropical Atlantic. https://doi.org/10.1594/PANGAEA.755401
  2. Barash, MS; Okuneva, OK (1981): (Table 2) Distribution of planktonic foraminiferal tests in sediments from Core ML7_475. https://doi.org/10.1594/PANGAEA.755402
  3. Barash, MS; Okuneva, OK (1981): (Table 3b) Distribution of planktonic foraminiferal tests in sediments from Core NKA-3T. https://doi.org/10.1594/PANGAEA.755404
  4. Barash, MS; Okuneva, OK (1981): (Table 3d) Distribution of planktonic foraminiferal tests in sediments from Core NKA-4T. https://doi.org/10.1594/PANGAEA.755406
  5. Barash, MS; Okuneva, OK (1981): (Table 3a) Distribution of planktonic foraminiferal tests in sediments from Core NKA-37T. https://doi.org/10.1594/PANGAEA.755403
  6. Barash, MS; Okuneva, OK (1981): (Table 3c) Distribution of planktonic foraminiferal tests in sediments from Core NKA-40T. https://doi.org/10.1594/PANGAEA.755405