Subsurface structure of and rate of net slip on the Kamishiro fault, northern part of the Itoigawa-Shizuoka tectonic line, central Japan

DOI 1 Citations

Bibliographic Information

Other Title
  • 糸魚川-静岡構造線活断層系北部神城断層の浅部構造と平均すべり速度
  • 浅部反射法地震探査とボーリングの結果

Search this article

Description

The Kamishiro fault is one of the major active faults constituting the Itoigawa-Shizuoka Tectonic Line (ISTL) in central Japan. The Kamishiro fault is an east-dipping reverse fault. This fault cuts and warped the young lake deposits (late Pleistocene and Holocene in age) in the Kamishiro basin. The slip rate on the Kamishiro fault near the surface has been estimated by Geo-Slicer and shallow drillings survey, but was found to be significantly smaller than the vertical slip-rate that was estimated from the displacement of the AT volcanic ash. We carried out a 55 m deep drilling and a seismic reflection profiling using S-waves in this basin to clarify the subsurface structure of the Kamishiro fault. As a result, it was clarified that the Kamishiro fault is associated with drag folding near the surface. If we take the drag folding into account, the overall rate of slip on the fault would be as high as 4.4-5.2mmlyr during the past 28ka.

Journal

  • Active Fault Research

    Active Fault Research 2001 (20), 59-70, 2001

    Japanese Society for Active Fault Studies

Citations (1)*help

See more

Keywords

Details 詳細情報について

  • CRID
    1390001204428689024
  • NII Article ID
    130003355566
  • DOI
    10.11462/afr1985.2001.20_59
  • ISSN
    09181024
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
    • Crossref
  • Abstract License Flag
    Disallowed

Report a problem

Back to top