Paleoenvironment of the eastern Tethys in the early Paleocene

Gerta Keller, C. Benjamini

Research output: Contribution to journalArticle

43 Scopus citations

Abstract

In the earliest Paleocene at least three intervals of erosion or nondeposition of sediments have been identified (K/T, P0/P1a, P1a/P1b boundaries) in addition to a black pyrite- and organic-rich clay layer about 1.5 to 3.0 m above the K/T boundary (Subzone P1b/P1c, upper Chron 29N). These hiatuses appear to be widespread and correlate with global sea level fluctuations. Danian planktic foraminiferal assemblages of the eastern Tethys are dominated by alternating abundance maxima between triserial (Guembelitria) and biserial (Woodringina, Chiloguembelina) species. Biogeographic distribution of these taxa indicates that both groups thrived in shallow continental shelf regions. Moreover, abundance maxima of triserial taxa seem to correspond to δ13C depletion intervals, which indicate low surface productivity, whereas abundance maxima of biserial taxa correspond to enriched δ13C intervals which imply high surface productivity. -from Authors

Original languageEnglish (US)
Pages (from-to)439-464
Number of pages26
JournalPalaios
Volume6
Issue number5
DOIs
StatePublished - Jan 1 1991

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Palaeontology

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