東京大学地震研究所
Earthquake Research Institute, the University of Tokyo
山梨大学教育人間科学部
Faculty ofEducation and Human Sciences, Yamanashi University
東北大学大学院理学研究科
Graduate School of Science, Tohoku University
（株）ジオシス
Geosys Inc.
抄録
The Sone fault is a south dipping active reverse fault, trending WNW-ESE and bounding the southern end of the Kofu basin. This fault is located between the Kofu basin and Sone hills, and has displaced several river terraces. To reveal the subsurface geometry of the Sone fault, highresolution shallow seismic profiling was performed along the 2.8-km-long Makado and 0.8-km-long Ubaguchi seismic lines. On the Unagushi section, a south dipping fault surface is clearly recognized by the discontinuity between horizontal reflectors in the north and the domain showing a chaotic pattern of reflections. On the Makado section, the south dipping Sone fault is identified between the horizontal reflectors at the basin-side and dipping reflectors at the hill-side. On both seismic lines, the fault surface dips 30 degrees southward. The trace of The Sone fault is located along the present riverbed of R. Fuefuki, some hundred meters basin-ward shift from the trace estimated from tectonic geomorphology.
雑誌名
東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo
巻
81
号
2
ページ
181 - 191
発行年
2006
ISSN
00408972
書誌レコードID
AN00162258
フォーマット
application/pdf
日本十進分類法
051.1
出版者
東京大学地震研究所
出版者別名
Earthquake Research Institute, University of Tokyo
曽根丘陵断層群を横切る浅層反射法地震探査
IHO81210.pdf
(9.14MB)
