堆積有機物に記録されたペルム紀/三畳紀境界の環境擾乱期における陸域生態系の荒廃

• 沢田 健

  北海道大学大学院理学研究院・自然史科学部門

書誌事項

タイトル別名

• Devastation of terrestrial ecosystem recorded by sedimentary organic matter in the environmental disturbance events of Permian-Triassic boundary
• タイセキ ユウキブツ ニ キロク サレタ ペルムキ サンジョウキ キョウカイ ノ カンキョウ ジョウランキ ニ オケル リクイキ セイタイケイ ノ コウハイ

抄録

Organic geochemical records for devastation of terrestrial ecosystem in the environmental disturbance events of Permian-Triassic boundary (PTB) are reviewed. Paleontological and geological (sedimentological) investigations for terrestrial ecosystem and environment in PTB have provided information for collapse and devastation of ecosystem in the supercontinent (Pangea), such as dieback of woody vegetation, massive loss of rooted plant, repopulation of herbaceous lycopsid, proliferation of fungal remain, cease of peat formation, and increased mutagenesis of spore and pollen. Recent studies of biomarker and kerogen reported that remarkable abundances of aromatic furans in marine sedimentary sequence of PTB showed organic geochemical evidence of massive soil erosion due to destruction of terrestrial vegetation. Sedimentary aromatic furan is possibly derived from polysaccharide in soil, whereas aromatic furan is also known to be synthesized as secondary metabolite of extant lichen. Thus, source(s) of sedimentary aromatic furan is still controversial, and further examination is necessary.

収録刊行物

• Researches in Organic Geochemistry

  Researches in Organic Geochemistry 23.24 (0), 13-22, 2008

  日本有機地球化学会

詳細情報

• CRID: 1390001205412719744
• NII論文ID: 110007504594
• NII書誌ID: AA11889471
• DOI: 10.20612/rog.23.24.0_13
• ISSN: 21897891
• ISSN: 13449915
• NDL書誌ID: 10504236
• Web Site: http://id.ndl.go.jp/bib/10504236
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10504236
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可