The Cenomanian-Turonian Oceanic Anoxic Event, I. Stratigraphy and distribution of organic carbon-rich beds and the Marine delta 13C excursion.

S. O. Schlanger, M. A. Arthur, H. C. Jenkyns, P. A. Scholle

Research output: Contribution to journalArticle

248 Citations (Scopus)

Abstract

Marine strata deposited during late Cenomanian and early Turonian time display lithological, faunal, and geochemical characteristics which indicate that significant parts of the world ocean were periodically oxygen deficient. At, or very close to, the Cenomanian-Turonian boundary, between 90.5 and 91.5Ma ago, oxygen deficiencies were particularly marked over a period of <1Ma. This short-lived episode of oceanic oxygen deficiency has been termed the Cenomanian-Turonian 'Oceanic Anoxic Event' (OAE). The widespread distribution of anoxic sediments deposited synchronously during such a short-lived event indicates that such sediments are not simply the product of coincidental local climatic or basinal water mass characteristics but are the result of a global expansion and intensification of the Cenomanian-Turonian oxygen-minimum zone related to feedback between sea level rise and regional palaeoceanography. The palaeoceanography of the Cenomanian Turonian OAE is discussed in detail in a companion paper by Arthur et al, 1987.-from Authors

Original languageEnglish (US)
Pages (from-to)371-399
Number of pages29
JournalUnknown Journal
StatePublished - Jan 1 1987

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Turonian
stratigraphy
organic carbon
paleoceanography
Cenomanian-Turonian boundary
oxygen
anoxic sediment
water mass
distribution
ocean
sediment
oxygen deficiency

All Science Journal Classification (ASJC) codes

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

Cite this

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The Cenomanian-Turonian Oceanic Anoxic Event, I. Stratigraphy and distribution of organic carbon-rich beds and the Marine delta 13C excursion. / Schlanger, S. O.; Arthur, M. A.; Jenkyns, H. C.; Scholle, P. A.

In: Unknown Journal, 01.01.1987, p. 371-399.

Research output: Contribution to journalArticle

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AU - Scholle, P. A.

PY - 1987/1/1

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