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Seismic Refraction Study in the Kitakami Region, Northern Hounshu, Japan

Seismic Refraction Study in the Kitakami Region, Northern Hounshu, Japan

Authors :
Makoto Nishiwaki
Takashi Iidaka
Takaya Iwasaki
Tetsu Masuda
Toshikatsu Yoshii
Akira Ikami
Takeo Moriya
Akio Kobayashi
Tomoki Tsutsui
Source :
Journal of Physics of the Earth. 41:165-188
Publication Year :
1993
Publisher :
Seismological Society of Japan, 1993.

Abstract

An extensive seismic refraction experiment with the use of explosive sources was conducted in the Kitakami region, northern Honshu, Japan, on November 1, 1990. The experiment area is divided into two geological units by the Hayachine Tectonic Belt (HTB). The southern terrane consists of pre-Silurian basements and Silurian-lower Cretaceous marine sediments, while the northern one is characterized by a Jurassic accretionary complex. Both of the units were intruded by Cretaceous granitic rocks. An almost N-S seismic refraction profile of 194-km length was extended from Kuji City, Iwate Prefecture to Ishinomaki City, Miyagi Prefecture, on which 4 shots with a charge size of 450-700 kg were fired

Details

ISSN :
18842305 and 00223743
Volume :
41
Database :
OpenAIRE
Journal :
Journal of Physics of the Earth
Accession number :
edsair.doi...........5cce0cc1a8ec2261968c50e0b0af565c
Full Text :
https://doi.org/10.4294/jpe1952.41.165