南サハリンにおけるタラナイ断層のトレンチ掘削調査 Trenching Study on the Taranay Fault in South Sakhalin, Far Eastern Russia

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Scarplets and east-dipping steep slopes, both of which form a marked lineament N20°E in direction and 16 km in length, develop on the Pleistocene fluvial surfaces along the geomorphic boundary between the Yuzhno-Kamyshovvy Mts. and the Susunayskaya Lowland in South Sakhalin. These landforms have been created by Quaternary activities of the Taranay fault. Our recent trenching surveys in Taranay (46° 39' N, 142° 24' E) revealed west-dipping thrusts truncating a fluvial gravel layer. Flexure of the fluvial gravel layer with >2 m vertical displacement was also identified. The latest event took place in the period between 42 and 0.1 ka. An average slip rate is estimated geomorphologically to be 0.05 to 0.08 m/ky, or faster. Whereas the Taranay fault can be regarded as a C-class active fault, further investigations to discover the main fault and to obtain other kinds of fault parameter are required.

収録刊行物

  • 地學雜誌  

    地學雜誌 109(2), 302-310, 2000-04-25 

    Tokyo Geographical Society

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各種コード

  • NII論文ID(NAID)
    10004672370
  • NII書誌ID(NCID)
    AN00322536
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    0022135X
  • NDL 記事登録ID
    5368740
  • NDL 雑誌分類
    ZM41(科学技術--地球科学)
  • NDL 請求記号
    Z15-169
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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