Active Faults in Southwestern Kathmandu Basin, Central Nepal

Authors

  • Kiyoshi Saijo Department of Geoenvironmental Science, Tohoku University, Sendai, 980-77, Japan
  • Kazuo Kimura Department of Geology, Tri-Chandra Campus, Tribhuvan University, (Japan Overseas Cooperation Volunteers) Kathmandu,
  • Gopal Dongol Department of Geoenvironmental Science, Tohoku University, Sendai, 980-77, Japan
  • Taku Komatsubara Department of Geoenvironmental Science, Tohoku University, Sendai, 980-77, Japan
  • Hiroshi Yagi Geographical laboratory, National Defence Academy, Yokosuka, 239, Japan

DOI:

https://doi.org/10.3126/jngs.v11i0.32796

Keywords:

Active faults, Quaternary sediments, Fault morphology, southwestern Kathmandu basin, central Nepal

Abstract

Two active faults running in NW-SE direction are discussed in the southwestern margin of the Kathmandu Basin. The fault morphology is expressed by isolated mounds, scarps, and depressions. The faults dislocate the colluvial slopes and terraces of the late Pleistocene. The Quaternary sediments in the vicinity of the fault zone are tilted. The field evidences suggest the downthrow of the foot wall along the southwestward dipping fault plane. The vertical rate of displacement along the fault exceeds 1.0 mm/yr. The right-lateral slip, which is characteristic of the NW-SE trending faults in the Nepal Himalaya (Nakata 1988), is not recognised in this area.

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Published

1995-12-01

How to Cite

Saijo, K., Kimura, K., Dongol, G., Komatsubara, T., & Yagi, H. (1995). Active Faults in Southwestern Kathmandu Basin, Central Nepal. Journal of Nepal Geological Society, 11, 217–224. https://doi.org/10.3126/jngs.v11i0.32796

Issue

Vol. 11 (1995): Special Issue

Section

Articles

License

© Nepal Geological Society