二次元電気探査による重力性変形地形浅層部の可視化の試み  [in Japanese] Preliminary Study for Visualizing the Subsurface Structure of Gravitational Deformation Slopes Using Electrical Resistivity Tomography  [in Japanese]

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Author(s)

    • 西井 稜子 NISHII Ryoko
    • 筑波大学生命環境系(農林技術センター井川演習林) Ikawa University Forest, Faculty of Life and Environmental Sciences, University of Tsukuba

Abstract

 Sackung features (scarps) have developed extensively in the Japanese Alps as a result of gravitational deformation. Electrical resistivity tomography was applied to evaluate the internal structure below eight scarps located above 2600 m a.s.l. The range of resistivity values differed significantly between the scarps and is mainly controlled by the moisture content of the ground. High- and low-resistivity areas were distinctly separated below some scarps. Areas of relatively low resistivity are considered as slightly fractured bedrock. In contrast, areas of high resistivity are likely to indicate highly fractured bedrock and/or talus without matrix. Such boundaries between high- and low-resistivity areas seem to correspond to fracture planes estimated from topography.

Journal

  • Journal of Geography (Chigaku Zasshi)

    Journal of Geography (Chigaku Zasshi) 122(4), 755-767, 2013

    Tokyo Geographical Society

Codes

  • NII Article ID (NAID)
    130003373670
  • NII NACSIS-CAT ID (NCID)
    AN00322536
  • Text Lang
    JPN
  • ISSN
    0022-135X
  • NDL Article ID
    024872421
  • NDL Call No.
    Z15-169
  • Data Source
    NDL  J-STAGE 
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