The Paleocene-Eocene transition in the marginal northeastern Tethys (Kazakhstan and Uzbekistan)

M. P. Bolle, A. Pardo, K. U. Hinrichs, T. Adatte, K. Von Salis, S. Burns, Gerta Keller, N. Muzylev

Research output: Contribution to journalArticle

37 Scopus citations

Abstract

We studied two sections that accumulated during the Paleocene-Eocene transition in shelf waters in the northeastern Tethys. Stable carbon isotopic compositions of marine and terrestrial are consistent with a 13C depletion in the oceanic and atmospheric carbon dioxide pools during the Late Paleocene Thermal Maximum (LPTM; Subzone P5b). The 2-3‰ negative δ13C excursion in planktic foraminifera coincides with minimum δ18O values, an incursion of transient subtropical planktic foraminiferal fauna, and the occurrence of an organic-rich sapropelite unit in Uzbekistan, which accumulated at the onset of a transgressive event. Biomarker distributions and hydrogen indices indicate that marine algae and bacteria were the major organic matter sources. During the Late Paleocene (Subzones P4 and P5a), the marginal northeastern Tethys experienced a temperate to warm climate with wet and arid seasons. Most likely, warm and humid climate initiated during the LPTM (Subzone P5b) and subsequently extended during the Eocene (Zone P6) onto adjacent land areas of the marginal northeastern Tethys.

Original languageEnglish (US)
Pages (from-to)390-414
Number of pages25
JournalInternational Journal of Earth Sciences
Volume89
Issue number2
DOIs
StatePublished - Jan 1 2000

All Science Journal Classification (ASJC) codes

  • Earth and Planetary Sciences(all)

Keywords

  • Biomarkers
  • Clay minerals
  • Climate
  • Late Paleocene
  • Northeastern Tethys
  • Organic matter
  • Stable isotopes
  • Thermal maximum

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    Bolle, M. P., Pardo, A., Hinrichs, K. U., Adatte, T., Von Salis, K., Burns, S., Keller, G., & Muzylev, N. (2000). The Paleocene-Eocene transition in the marginal northeastern Tethys (Kazakhstan and Uzbekistan). International Journal of Earth Sciences, 89(2), 390-414. https://doi.org/10.1007/s005310000092