10.1594/PANGAEA.761244
Keswani, Sushiel R
Sushiel R
Keswani
Dunham, Keith W
Keith W
Dunham
Meyers, Philip A
Philip A
Meyers
0000-0002-9709-7528
Organic geochemistry from different DSDP Holes in the subtropical South Atlantic Ocean
PANGAEA
1984
Drilling/drill rig
Leg72
Leg74
Leg75
Glomar Challenger
Deep Sea Drilling Project (DSDP)
1980-03-01T00:00:00/1980-08-20T00:00:00
en
Supplementary Publication Series of Datasets
10.1016/0025-3227(84)90106-3
3 datasets
application/zip
Creative Commons Attribution 3.0 Unported
Organic matter has been characterized in samples of Pleistocene, Pliocene, and Miocene sediments from seven Deep Sea Drilling Project sites in the subtropical South Atlantic Ocean. Organic carbon concentrations average 0.3% for most samples, and n-alkanoic acid, n-alkanol, and alkane biomarkers indicate extensive microbial reworking of organic matter in these organic-carbon-lean sediments. Samples from the easternmost parts of the South Atlantic contain an average of 4.1% organic carbon and reflect the high productivity associated with the Benguela Current. Lipid biomarkers show less microbial reworking in these sediments. Eolian transport of land-derived hydrocarbons is evident at most of these oceanic locations.
Supplement to: Keswani, Sushiel R; Dunham, Keith W; Meyers, Philip A (1984): Organic geochemistry of late Cenozoic sediments from the subtropical South Atlantic Ocean. Marine Geology, 61(1), 25-42
-38.0412
10.5188
-30.9468
-19.1877
South Atlantic/BASIN
South Atlantic/CONT RISE
South Atlantic/FLANK
South Atlantic/CREST
South Atlantic/RIDGE
South Atlantic