Organic geochemical parameters in sediment samples from the Weddell Sea (Table 2) ...

Heavy hydrocarbons (~C15 + ) are ubiquitous but minor components in sediment from three sites (692, 693, and 694) drilled during Ocean Drilling Program (ODP) Leg 113. This preliminary report is the first to describe the distribution of some of these hydrocarbons in sediment of the Weddell Sea. Sampl...

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Bibliographic Details
Main Authors: Kvenvolden, Keith A, Horstettler, Frances D, Frank, Tamara J
Format: Dataset
Language:English
Published: PANGAEA 1990
Subjects:
Event label
Sample code/label
-
Pristane/Phytane ratio
Ratio
Comment
Drilling/drill rig
DSDP/ODP/IODP sample designation
Leg113
Joides Resolution
Ocean Drilling Program ODP
Antarc*
Antarctica
Dronning Maud Land
Weddell Sea
Online Access:https://dx.doi.org/10.1594/pangaea.754376
https://doi.pangaea.de/10.1594/PANGAEA.754376
Description
Summary:Heavy hydrocarbons (~C15 + ) are ubiquitous but minor components in sediment from three sites (692, 693, and 694) drilled during Ocean Drilling Program (ODP) Leg 113. This preliminary report is the first to describe the distribution of some of these hydrocarbons in sediment of the Weddell Sea. Samples from Sites 692 and 693, located on a midslope bench along the margin of Dronning Maud Land, span a time interval from Early Cretaceous to Pleistocene. In our samples from the Tertiary portion of the record, having an average organic-carbon content of about 0.2%, n-alkanes are common and are characterized by populations that indicate both marine and terrigenous sources. The alpha beta-hopanes and aaa-steranes are minor components with isomer ratios indicating partial to full maturity. In contrast, our samples from the Cretaceous portion of the record, having an average organic carbon content of about 4%, contain mixtures of hydrocarbons in which n-alkanes are secondary in abundance to the isoprenoid ... : Supplement to: Kvenvolden, Keith A; Horstettler, Frances D; Frank, Tamara J (1990): Hydrocarbons in sediment of the Weddell Sea, Antarctica. In: Barker, PF; Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113, 199-208 ...

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