Herbin, Jean-Paul; Deroo, Gerard; Roucaché, J (1983): Carbonate, organic carbon, pyrolysis and composition of the extracts at DSDP Holes 76-534A and 44-391. PANGAEA, https://doi.org/10.1594/PANGAEA.809920, Supplement to: Herbin, J-P et al. (1983): Organic geochemistry in the Mesozoic and Cenozoic formations of Site 534, Leg 76, Blake-Bahama Basin, and comparison with Site 391, Leg 44. In: Sheridan, RE; Gradstein, FM; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 76, 481-493, https://doi.org/10.2973/dsdp.proc.76.117.1983
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The geochemical studies of Sites 534 and 391 and their comparison allow us to improve the chemical characterization of different geological formations dating from the early Callovian to the Maestrichtian along the continental margin of eastern North America.
Three of the formations are favorable for the preservation of organic matter: (1) the unnamed formation (middle Callovian to Oxfordian), (2) the Blake-Bahama Formation (Berriasian to Barremian), and (3) the Hatteras Formation (Aptian to Cenomanian). The organic matter is mainly detrital, except for a few organic-rich layers where a contribution of aquatic material occurs. In these organic-rich layers, the petroleum potential is medium to good. Maturation has not quite reached the beginning of the oil window even for the deepest organic material.
Median Latitude: 28.304467 * Median Longitude: -75.460033 * South-bound Latitude: 28.226800 * West-bound Longitude: -75.616700 * North-bound Latitude: 28.343300 * East-bound Longitude: -75.381700
Date/Time Start: 1975-09-02T00:00:00 * Date/Time End: 1980-10-21T00:00:00
44-391C * Latitude: 28.226800 * Longitude: -75.616700 * Date/Time: 1975-09-02T00:00:00 * Elevation: -4974.0 m * Penetration: 1412 m * Recovery: 213.7 m * Location: North Atlantic/BASIN * Campaign: Leg44 * Basis: Glomar Challenger * Device: Drilling/drill rig (DRILL) * Comment: 50 cores; 469.5 m cored; 22 m drilled; 45.5 % recovery
76-534A * Latitude: 28.343300 * Longitude: -75.381700 * Date/Time: 1980-10-21T00:00:00 * Elevation: -4971.0 m * Penetration: 1666.5 m * Recovery: 612.4 m * Location: North Atlantic/BASIN * Campaign: Leg76 * Basis: Glomar Challenger * Device: Drilling/drill rig (DRILL) * Comment: 127 cores; 1113.1 m cored; 31.5 m drilled; 55 % recovery