The Cenomanian-Turonian Boundary Event: sedimentary, faunal and geochemical criteria developed from stratigraphic studies in NW- Germany.

H. Hilbrecht, M. A. Arthur, S. O. Schlanger

Research output: Contribution to journalArticle

25 Scopus citations

Abstract

'Oceanic Anoxic Events' are time envelopes of increased organic carbon burial, rich in carbon-12 by biogenic fractionation, accompanied by a strong positive shift of the DELTA carbon-13 values of the carbonate in the late Cenomanian-early Turonian. The return to lower values reflects erosion and reoxidation of the carbon-12 rich organic material during times of tectonic activity. The evolution and diversity of planktonic foraminifera is closely bound to the event. The diversity is inversely correlated to DELTA carbon-13 and the occurrence of distinct species in the stratigraphical record provides evidence of changes of the Mid- Water Oxygen Minimum Zone.-Authors

Original languageEnglish (US)
Pages (from-to)345-351
Number of pages7
JournalUnknown Journal
DOIs
StatePublished - 1986

All Science Journal Classification (ASJC) codes

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

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