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Meyers, Philip A; Dunham, Keith W; Ho, Eileen S (1987): Organic geochemistry of Cretaceous black shales from the Galicia Margin [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.757260, Supplement to: Meyers, PA et al. (1987): Organic geochemistry of Cretaceous black shales from the Galicia Margin, Ocean Drilling Program Leg 103. Organic Geochemistry, 13(1-3), 89-96, https://doi.org/10.1016/0146-6380(88)90029-0

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Abstract:
Organic-carbon-rich "black shales" from three different Cretaceous episodes sampled during Ocean Drilling Program Leg 103 have been studied by organic geochemical methods. Rock-Eval analysis, carbon isotope data, and lipid biomarkers show organic matter to contain varying proportions of marine and continental materials. In Hauterivian-Barremian organic-carbon-rich turbiditic marlstones, major amounts of land-derived organic matter are found. Aptian-Albian black-colored shales are interspersed within green claystones, from which they differ by containing more marine organic matter. An abbreviated layer of black shale from the Cenomanian-Turonian boundary is dominated by well-preserved marine organic matter. Downslope transport and rapid reburial within a predominantly oxygenated deepwater setting created most of these examples of black shales, except for the Cenomanian-Turonian deposits in which deepwater anoxia may have been involved.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 42.154207 * Median Longitude: -12.188700 * South-bound Latitude: 42.153300 * West-bound Longitude: -12.196700 * North-bound Latitude: 42.155000 * East-bound Longitude: -12.181700
Date/Time Start: 1985-05-06T00:15:00 * Date/Time End: 1985-06-15T13:30:00
Event(s):
103-638B * Latitude: 42.153300 * Longitude: -12.196700 * Date/Time Start: 1985-05-06T00:15:00 * Date/Time End: 1985-05-12T23:15:00 * Elevation: -4673.0 m * Penetration: 431.1 m * Recovery: 212.87 m * Location: South Atlantic Ocean * Campaign: Leg103 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 45 cores; 431.1 m cored; 0 m drilled; 49.4 % recovery
103-641A * Latitude: 42.155000 * Longitude: -12.181700 * Date/Time Start: 1985-06-08T03:30:00 * Date/Time End: 1985-06-10T14:30:00 * Elevation: -4646.0 m * Penetration: 63.6 m * Recovery: 40.37 m * Location: South Atlantic Ocean * Campaign: Leg103 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 7 cores; 63.6 m cored; 0 m drilled; 63.5 % recovery
103-641C * Latitude: 42.155000 * Longitude: -12.181700 * Date/Time Start: 1985-06-11T10:45:00 * Date/Time End: 1985-06-15T13:30:00 * Elevation: -4650.0 m * Penetration: 305.2 m * Recovery: 112.48 m * Location: South Atlantic Ocean * Campaign: Leg103 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 16 cores; 154.2 m cored; 0 m drilled; 72.9 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets

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Datasets listed in this publication series

  1. Meyers, PA; Dunham, KW; Ho, ES (1987): (Table 1) General characteristics of Cretaceous black shales and adjacent rocks from ODP Leg 103 samples. https://doi.org/10.1594/PANGAEA.757258
  2. Meyers, PA; Dunham, KW; Ho, ES (1987): (Table 2) Extractable geolipids from Cretaceous ODP Leg 103 samples. https://doi.org/10.1594/PANGAEA.757262