Herbin, Jean-Paul; Deroo, Gerard; Roucaché, J (1984): Organic geochemistry of lower Cretaceous sediments at DSDP Hole 77-535 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.809513, Supplement to: Herbin, J-P et al. (1984): Organic geochemistry of lower Cretaceous sediments from Site 535, Leg 77, Florida Straits. In: Buffler, RT; Schlager, W; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 77, 459-475, https://doi.org/10.2973/dsdp.proc.77.113.1984
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Abstract:
At Site 535, the four lithologic units of Cretaceous age are controlled by two types of sedimentologic facies: (1) the massive light-colored limestones or marly limestones in which the total organic carbon (TOC) content is low and the organic matter more or less oxidized and (2) laminated dark facies in which the TOC content is higher and associated with a well-preserved organic matter of Type II origin. Very little typical Type III organic matter occurs in the whole series from late Berriasian to Aptian and Cenomanian. Fluctuations from oxidizing to reducing environments of deposition are proposed to account for the variations in properties of the Type II organic matter between the different facies. Dark laminated layers are good but immature potential source rocks: petroleum potential is often higher than 2 kg HC/t of rock.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Latitude: 23.708000 * Longitude: -84.516200
Date/Time Start: 1980-12-29T00:00:00 * Date/Time End: 1980-12-29T00:00:00
Event(s):
77-535 * Latitude: 23.708000 * Longitude: -84.516200 * Date/Time: 1980-12-29T00:00:00 * Elevation: -3450.0 m * Penetration: 714 m * Recovery: 504.6 m * Location: Gulf of Mexico/BASIN * Campaign: Leg77 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 78 cores; 704.5 m cored; 9.5 m drilled; 71.6 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
3 datasets
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Datasets listed in this publication series
- Herbin, J-P; Deroo, G; Roucaché, J (1984): (Appendix) Carbonate, organic carbon, and pyrolysis at DSDP Hole 77-535. https://doi.org/10.1594/PANGAEA.809512
- Herbin, J-P; Deroo, G; Roucaché, J (1984): (Table 2) Elements in kerogen at DSDP Hole 77-535. https://doi.org/10.1594/PANGAEA.809510
- Herbin, J-P; Deroo, G; Roucaché, J (1984): (Table 3) Composition of the extracts at DSDP Hole 77-535. https://doi.org/10.1594/PANGAEA.809511