Sulfur isotopic data from the Permian/Triassic boundary at Tenjinmaru in the Chichibu Terrane in eastern Shikoku, Japan

Y. Kajiwara, S. Yamakita, D. Kobayashi, Akira Imai

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8 Citations (Scopus)

Abstract

A temporary and drastic decrease in 34S/32S ratio of whole rock sulfide has been recognized at the suspected Permian/Triassic (P/Tr) boundary at Tenjinmaru in the Chichibu Terrane in eastern Shikoku, Japan, which is characterized by the occurrence of a carbonaceous black mudstone. The observed isotopic profile in the P/Tr section is in striking contrast in mode of 34S/32S excursion to that at the K/T boundary at Kawaruppu in eastern Hokkaido, Japan, and adds to significant geochemical constraint to the current arguments on the palaeoenvironmental changes during the time of terminal Permian mass extinction. -from Authors

Original languageEnglish
Pages (from-to)59-65
Number of pages7
JournalAnnual Report - University of Tsukuba, Institute of Geoscience
Volume19
Publication statusPublished - Jan 1 1993
Externally publishedYes

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Permian-Triassic boundary
terrane
Permian
sulfur
mass extinction
mudstone
Triassic
sulfide
rock

All Science Journal Classification (ASJC) codes

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

Cite this

Sulfur isotopic data from the Permian/Triassic boundary at Tenjinmaru in the Chichibu Terrane in eastern Shikoku, Japan. / Kajiwara, Y.; Yamakita, S.; Kobayashi, D.; Imai, Akira.

In: Annual Report - University of Tsukuba, Institute of Geoscience, Vol. 19, 01.01.1993, p. 59-65.

Research output: Contribution to journalArticle

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