海洋および湖沼堆積物中の不溶性有機物(ケロジェン)のキャラクタリゼーション –アルカリKMnO<sub>4</sub>酸化分解生成物の脂肪族ジカルボン酸の分子分布–  [in Japanese] Chemical characterization of insoluble macromolecules (Kerogen) from marine and lacustrine sediments –Molecular distribution of aliphatic dicarboxylic acids in alkaline KMnO<sub>4</sub> oxidation products–  [in Japanese]

Access this Article

Search this Article

Author(s)

    • 森永 茂生 MORINAGA Shigeo
    • 東京都立大学理学部化学教室|(現)桐蔭学園横浜大学工学部 Department of Chemistry, Faculty of Science, Tokyo Metropolitan University|(Present address) Department of Materials Science and Technology, Faculty of Engineering, Toin University of Yokohama
    • 町原 勉 MACHIHARA Tsutomu
    • 東京都立大学理学部化学教室|(現)石油公団石油開発技術センター Department of Chemistry, Faculty of Science, Tokyo Metropolitan University|(Present address) Technology Research Center, Japan National Oil Corporation

Abstract

Insoluble macromolecules (kerogen) were isolated from 7 marine and 10 lacustrine sediment samples and subjected to alkaline KMnO<sub>4</sub> oxidation, followed by analysis of organic acids in the oxidation products. The major compounds consist of aliphatic C<sub>4</sub>-C<sub>15</sub>α, ω-dicarboxylic acids, n-C<sub>7</sub>-C<sub>28</sub> monocarboxylic acids and benzene mono-to-polycarboxylic acids. The α, ω-dicarboxylic acids from lacustrine kerogens have a maximum at C<sub>8</sub> or C<sub>9</sub>. Whereas those from marine ones show a shoulder in this carbon range, have a maximum at C<sub>4</sub> and decrease with increasing carbon number. This difference in the relative abundance of C<sub>4</sub> and C<sub>8</sub>, C<sub>9</sub> α, ω-dicarboxylic acids may be due to different precursory materials in the different environments. This result is in accordance with our previous findindg, suggesting strongly that a portion of the chemical structures of kerogens from marine and lake environments is generally different from each other. A mathematical expression was proposed to visualize the feature of molecular distribution of α, ω- dicarboxylic acids from kerogens. In addition, it is shown by both alkaline CuO oxidation and KMnO<sub>4</sub> experiments that polymerized structure of polyhydroxy acids can be one of the precursors for α, ω-dicarboxylic acids from kerogens.

Journal

  • Chikyukagaku

    Chikyukagaku 30(1), 35-45, 1996

    The Geochemical Society of Japan

References:  38

Cited by:  2

Codes

  • NII Article ID (NAID)
    110008679911
  • NII NACSIS-CAT ID (NCID)
    AN00141280
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    0386-4073
  • NDL Article ID
    3946325
  • NDL Source Classification
    ZM41(科学技術--地球科学)
  • NDL Call No.
    Z15-645
  • Data Source
    CJP  CJPref  NDL  NII-ELS  J-STAGE 
Page Top