Rullkötter, Jürgen; Mukhopadhyay, Prasanta K; Welte, Dietrich Hugo (1987): Geochemistry and petrography of organic matter at DSDP Site 93-603 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.789185, Supplement to: Rullkötter, J et al. (1987): Geochemistry and petrography of organic matter from Deep Sea Drilling Project Site 603, lower continental rise off Cape Hatteras. In: van Hinte, JE; Wise, SW Jr; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 93, 1163-1176, https://doi.org/10.2973/dsdp.proc.93.148.1987
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Abstract:
A series of 22 sediment samples of Cretaceous and Cenozoic age from DSDP Holes 603, 603B, and 603C at the continental rise off the northeastern American coast near Cape Hatteras was investigated by organic geochemical methods including organic carbon determination, Rock-Eval pyrolysis, gas chromatography and combined gas chromatography/mass spectrometry of extractable hydrocarbons, and kerogen microscopy. An abundance of terrigenous organic matter, including larger coal particles (almost exclusively consisting of huminite/vitrinite macerals), is the dominant characteristic of the organofacies types at Site 603. Marine organic matter, mostly structurally degraded and in the form of fecal pellets, was preserved in the Valanginian laminated marls and in Cenomanian black claystone turbidites. Long-chain nalkanes reflect the terrigenous imprint in the nonaromatic hydrocarbon fractions, whereas a second maximum at lower carbon numbers in most cases is caused by the presence of more mature recycled organic matter. Abundant isoprenoid and steroid hydrocarbons were found in sediments containing mainly marine organic matter, whereas hopanoids reflect the ubiquitous microbial activity. The organic matter in the Site 603 sediments, in so far as it is not recycled, is thermally immature.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 35.495293 * Median Longitude: -70.029573 * South-bound Latitude: 35.494300 * West-bound Longitude: -70.031000 * North-bound Latitude: 35.496300 * East-bound Longitude: -70.028300
Date/Time Start: 1983-05-05T00:00:00 * Date/Time End: 1983-05-05T00:00:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
3 datasets
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Datasets listed in this publication series
- Rullkötter, J; Mukhopadhyay, PK; Welte, DH (1987): (Table 3) Extract and hydrocarbons at DSDP Site 93-603. https://doi.org/10.1594/PANGAEA.789183
- Rullkötter, J; Mukhopadhyay, PK; Welte, DH (1987): (Table 1) Lithology, epoch, organic carbon content, and hydrogen, oxygen and production index at DSDP Site 93-603. https://doi.org/10.1594/PANGAEA.789181
- Rullkötter, J; Mukhopadhyay, PK; Welte, DH (1987): (Table 2) Vitrinite reflectance, thermal alteration index and maceral composition at DSDP Site 93-603. https://doi.org/10.1594/PANGAEA.789184