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Gilbert, Deborah (1984): Organic facies variations in the Mesozoic South Atlantic DSDP Holes [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.810223, Supplement to: Gilbert, D (1984): Organic facies variations in the Mesozoic South Atlantic. In: Hay, WW; Sibuet, J-C; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 75, 1035-1049, https://doi.org/10.2973/dsdp.proc.75.135.1984

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Abstract:
Visual kerogen and total organic carbon determinations indicate that there are two periods of organic enrichment events in the Mesozoic sediments of the South Atlantic. The first period, from the Late Jurassic through the late Aptian, is recorded in sediments from the Falkland Plateau, the Cape Basin, and the Angola Basin. Apparently, salinity stratification in the restricted basin, coupled with rising sea level, led to bottom water anoxia and organic enrichment. The second event, from the late Albian to the Santonian period, is recorded in sediments from the Angola Basin and the Sao Paulo Plateau. It appears to have been caused by development of an anoxic oxygen minimum zone at midwater depths. Organic matter sedimentation in the Mesozoic South Atlantic is controlled by geologic, climatic, eustatic, and Oceanographic factors.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: -34.038016 * Median Longitude: -19.030259 * South-bound Latitude: -51.004700 * West-bound Longitude: -46.971700 * North-bound Latitude: -11.572000 * East-bound Longitude: 15.448500
Date/Time Start: 1974-04-13T00:00:00 * Date/Time End: 1980-07-29T00:00:00
Event(s):
36-327 * Latitude: -50.871300 * Longitude: -46.783700 * Date/Time: 1974-04-13T00:00:00 * Elevation: -2400.0 m * Penetration: 5 m * Recovery: 5.4 m * Location: South Atlantic/PLATEAU * Campaign: Leg36 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 1 cores; 5 m cored; 0 m drilled; 109 % recovery
36-330 * Latitude: -50.919800 * Longitude: -46.883300 * Date/Time: 1974-05-06T00:00:00 * Elevation: -2626.0 m * Penetration: 575.5 m * Recovery: 85.3 m * Location: South Atlantic/CONT RISE * Campaign: Leg36 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 17 cores; 161.5 m cored; 0 m drilled; 52.8 % recovery
39-356 * Latitude: -28.287000 * Longitude: -41.088000 * Date/Time: 1974-11-16T00:00:00 * Elevation: -3175.0 m * Penetration: 741 m * Recovery: 310.6 m * Location: South Atlantic/PLATEAU * Campaign: Leg39 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 42 cores; 396 m cored; 9.5 m drilled; 78.4 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
10 datasets

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Datasets listed in this publication series

  1. Gilbert, D (1984): (Table 3) Lithology, total organic carbon, and kerogen distribution at DSDP Hole 36-327. https://doi.org/10.1594/PANGAEA.810215
  2. Gilbert, D (1984): (Table 1) Lithology, total organic carbon, and kerogen distribution at DSDP Hole 36-330. https://doi.org/10.1594/PANGAEA.810212
  3. Gilbert, D (1984): (Table 9) Lithology, total organic carbon, and kerogen distribution at DSDP Hole 39-356. https://doi.org/10.1594/PANGAEA.810221
  4. Gilbert, D (1984): (Table 10) Lithology, total organic carbon, and kerogen distribution at DSDP Hole 39-357. https://doi.org/10.1594/PANGAEA.810222
  5. Gilbert, D (1984): (Table 5) Lithology, total organic carbon, and kerogen distribution at DSDP Hole 40-361. https://doi.org/10.1594/PANGAEA.810217
  6. Gilbert, D (1984): (Table 8) Lithology, total organic carbon, and kerogen distribution at DSDP Hole 40-363. https://doi.org/10.1594/PANGAEA.810220
  7. Gilbert, D (1984): (Table 6) Lithology, total organic carbon, and kerogen distribution at DSDP Hole 40-364. https://doi.org/10.1594/PANGAEA.810218
  8. Gilbert, D (1984): (Table 2) Lithology, total organic carbon, and kerogen distribution at DSDP Hole 71-511. https://doi.org/10.1594/PANGAEA.810213
  9. Gilbert, D (1984): (Table 4) Chromalytics MP-3 pyrolysis from selected South Atlantic DSDP Holes. https://doi.org/10.1594/PANGAEA.810216
  10. Gilbert, D (1984): (Table 7) Lithology, total organic carbon, and kerogen distribution at DSDP Hole 75-530A. https://doi.org/10.1594/PANGAEA.810219