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Organic Geochemistry of Cretaceous Shales from DSDP Site 398, Leg 47B, Eastern North Atlantic

1979; Linguagem: Inglês

10.2973/dsdp.proc.47-2.118.1979

G. Deroo, Roucache Herbin, J.D. Tissot,

Geology and Paleoclimatology Research

Cretaceous, organic-rich, dark-colored shales and mudstones were drilled in the Vigo Seamount area on DSDP Leg 47B.Despite their relative richness, their organic matter is predominantly derived from detrital material of continental origin.Some contribution of marine organic matter is apparent in the middle to upper Albian and Cenomanian sediments.An immature stage of evolution can be assigned to all the samples.