TY - JOUR
T1 - Carbonate cycles in Aptian- Albian ' black- shales' of the Falkland Plateau ( DSDP Leg 71 Site 511, Cretaceous).
AU - Parker, M. E.
AU - Arthur, M. A.
AU - Wise, S. W.
PY - 1983
Y1 - 1983
N2 - Cretaceous cores from DSDP Leg 71, Site 511, drilled on the eastern Falkland Plateau were examined via carbonate, organic carbon, stable isotope, nannofloral, and ultrastructural analysis in an attempt to determine the mode of origin of thin but discrete pelagic limestone beds intercalated among the black mudstones near the top of the extensive Mesozoic 'black-shale' sequence. The 'black shales' are of interest because of their paleoenvironmental significance and their potential as a source rock for petroleum in and around the South Atlantic Basin. Episodes of upwelling and overturn of the water column, rather than influxes of well-oxygenated waters into an otherwise anoxic environment are suggested by both the nannofloral and isotopic analyses as a possible mode of origin of the thin but discrete pelagic limestone beds intercalated among the Falkland Plateau Aptian-Albian black mudstones.-from Current Antarctic Literature
AB - Cretaceous cores from DSDP Leg 71, Site 511, drilled on the eastern Falkland Plateau were examined via carbonate, organic carbon, stable isotope, nannofloral, and ultrastructural analysis in an attempt to determine the mode of origin of thin but discrete pelagic limestone beds intercalated among the black mudstones near the top of the extensive Mesozoic 'black-shale' sequence. The 'black shales' are of interest because of their paleoenvironmental significance and their potential as a source rock for petroleum in and around the South Atlantic Basin. Episodes of upwelling and overturn of the water column, rather than influxes of well-oxygenated waters into an otherwise anoxic environment are suggested by both the nannofloral and isotopic analyses as a possible mode of origin of the thin but discrete pelagic limestone beds intercalated among the Falkland Plateau Aptian-Albian black mudstones.-from Current Antarctic Literature
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M3 - Article
AN - SCOPUS:0020916963
SN - 0003-5335
VL - 18
SP - 153
EP - 154
JO - Antarctic Journal of the United States
JF - Antarctic Journal of the United States
IS - 5
ER -