Planktic foraminiferal faunal turnovers in the subtropical Pacific during the late Paleocene to early Eocene

Lu Gangyi Lu, Gerta Keller

Research output: Contribution to journalArticle

34 Scopus citations

Abstract

Sedimentary samples at 25-cm intervals (81 k.y.) at DSDP Site 577 provides a high resolution data base. There are three major faunal turnovers, each of which occurred over a time period of 200 to 400 k.y., near the P3a/P3b, P6a/P6b and P8/P9 boundaries. These turnovers are characterized by rapid changes in species richness, large numbers of first and last appearances, and significant changes in the relative abundances of species. A chronological sequence of datum levels and faunal events of foraminifera tied to magnetostratigraphy provides biostratigraphic control at 1 m.y. intervals for the late Paleocene to early Eocene, with faunal and isotopic events near the Paleocene/Eocene boundary providing isochronous stratigraphic markers. -from Authors

Original languageEnglish (US)
Pages (from-to)97-116
Number of pages20
JournalJournal of Foraminiferal Research
Volume25
Issue number2
DOIs
StatePublished - Jan 1 1995

All Science Journal Classification (ASJC) codes

  • Microbiology
  • Palaeontology

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