Dunham, Keith W; Meyers, Philip A; Ho, Eileen S (1988): Organic geochemistry of Cretaceous black shales [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.743874, Supplement to: Dunham, KW et al. (1988): Organic geochemistry of Cretaceous black shales and adjacent strata from the Galicia margin, North Atlantic Ocean. In: Boillot, G; Winterer, EL; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 103, 557-565, https://doi.org/10.2973/odp.proc.sr.103.157.1988
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
Organic-carbon-rich 'black shales' and adjacent organic-carbon-poor rocks from three different Cretaceous settings encountered during ODP 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 marlstone turbidites, large 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 deep-water setting created most of these examples of black shales, except for the Cenomanian-Turonian deposits in which deep-water anoxia may have been involved.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 42.131206 * Median Longitude: -12.295643 * South-bound Latitude: 42.016700 * West-bound Longitude: -12.863300 * North-bound Latitude: 42.155000 * East-bound Longitude: -12.181700
Date/Time Start: 1985-04-28T18:00:00 * Date/Time End: 1985-06-15T13:30:00
Event(s):
103-637A * Latitude: 42.088300 * Longitude: -12.863300 * Date/Time Start: 1985-04-28T18:00:00 * Date/Time End: 1985-05-04T21:00:00 * Elevation: -5321.0 m * Penetration: 285.6 m * Recovery: 116.31 m * Location: South Atlantic Ocean * Campaign: Leg103 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 30 cores; 285.6 m cored; 0 m drilled; 40.7 % recovery
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
103-638C * Latitude: 42.153300 * Longitude: -12.196700 * Date/Time Start: 1985-06-01T18:00:00 * Date/Time End: 1985-06-03T20:30:00 * Elevation: -4673.0 m * Penetration: 547.2 m * Recovery: 37.7 m * Location: South Atlantic Ocean * Campaign: Leg103 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 14 cores; 135.2 m cored; 0 m drilled; 27.9 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
Download Data
Datasets listed in this publication series
- Dunham, KW; Meyers, PA; Ho, ES (1988): (Table 2) Extractable geolipids from Cretaceous Leg 103 samples. https://doi.org/10.1594/PANGAEA.743873
- Dunham, KW; Meyers, PA; Ho, ES (1988): (Table 1) Description of sediments and rocks of ODP Leg 103 samples, and their generel organic geochemical characteristics. https://doi.org/10.1594/PANGAEA.743872