Carbonate and organic carbon cycles in Aptian- Albian black shales at Deep Sea Drilling Project Site 511, Falkland Plateau.

M. E. Parker, M. A. Arthur, S. W. Wise, C. R. Wenkam

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Thin but discrete pelagic limestone beds intercalated among the black mudstones near the top of the extensive Mesozoic black shale sequence of the Falkland Plateau are reminiscent of similar occurrences in the central and North Atlantic and may be cyclic in nature. They have been studied via carbonate, organic carbon, stable isotope, nannofloral, and ultrastructural analysis in an attempt to determine their mode of origin. Delta13C data suggest that the more nannofossil-rich intervals may be due to higher nutrient supply and overturn of deeper waters at the site rather than influxes of well-oxygenated waters into an otherwise anoxic environment. Such an explanation is in accord with the nannofloral evidence. -from Authors

Original languageEnglish (US)
Pages (from-to)1051-1070
Number of pages20
JournalUnknown Journal
StatePublished - Jan 1 1983

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

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