Benzohopanes and diaromatic 8(14)-secohopanoids in some Late Permian carbonates

• OBA MASAHIRO

  Institute of Geology and Paleontology, Tohoku University

• NAKAMURA MASAOKI

  Institute of Geology and Paleontology, Tohoku University

• FUKUDA YOSHIHIKO

  Institute of Geology and Paleontology, Tohoku University

• KATABUCHI MASATOSHI

  Institute of Geology and Paleontology, Tohoku University

• TAKAHASHI SATOSHI

  Institute of Geology and Paleontology, Tohoku University

• HAIKAWA MASATAKA

  Institute of Mineralogy, Petrology and Economic Geology, Tohoku University

• KAIHO KUNIO

  Institute of Geology and Paleontology, Tohoku University

Abstract

We have detected a family of benzohopanes cyclised at C-20 and two families of diaromatic 8(14)-secohopanoids, in carbonates from the Late Permian Meishan (China) and Bulla (Italy) sections. Furthermore, we have identified a C₃₃ 8(14)-secohopanoid possessing a fluorene moiety. The relative distribution of 8(14)-secohopanoids with a fluorene moiety was similar to that of benzohopanes cyclised at C-20, suggesting that the secohopanoids might be diagenetic products of benzohopanes, or that the benzohopanes and secohopanoids share the same precursor. Furthermore, the series of benzohopanes cyclised at C-16 was not detected from the carbonates of the two sections, which might suggest that the benzohopanes cyclised at C-16 are thermodynamically less stable than those with the aromatic ring attached at C-20.

Journal

• GEOCHEMICAL JOURNAL

  GEOCHEMICAL JOURNAL 43 (1), 29-35, 2009

  GEOCHEMICAL SOCIETY OF JAPAN

Keywords

• benzohopanes
• diaromatic 8(14)-secohopanoids
• Late Permian carbonates
• diagenesis
• GC-MS

Details

• CRID: 1390282679527502208
• NII Article ID: 130004469240
• NII Article ID: 10026140819
• NII Book ID: AA00654975
• DOI: 10.2343/geochemj.1.0004
• COI: 1:CAS:528:DC%2BD1MXks1Whurg%3D
• ISSN: 18805973
• ISSN: 00167002
• NDL BIB ID: 9801684
• Web Site: http://id.ndl.go.jp/bib/9801684
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9801684
• Web Site: http://www.jstage.jst.go.jp/article/geochemj/43/1/43_1.0004/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed