このエントリーをはてなブックマークに追加
ID 29025
file
title alternative
Development of joints in the Sandankyo Area, Hiroshima Prefecture, Southwest Japan <Articles>
creator
Hayashi, Takaya
Nakai, Shinichi
Tsushima, Atsuo
NDC
Earth sciences. Geology
abstract
Joints are markedly developed in the acidic welded tuff of the Sandankyo Area, Hiroshima Prefecture, Southwest Japan. Six sets of joint are distinguished in this area, namely N-S set, NESW set, NNE-SSW set, NW-SE set, NNW-SSE set, and horizontal set. It is considered that NESW, NNE-SSW, NW-SE, and NNW-SSE sets of joint were formed by the simple shear due to NE-SW strike-slip faulting with right-lateral shear sense. Detailed microscopy shows that N-S and NE-SW sets of joint contain narrow quartz vein with newly recrystallized muscovite, and cut by the other sets. This suggests that, preceding the NE-SW faulting, WNW-ESE extention accompanied with granite porphyry intrusion formed N-S and NE-SW sets of joint.
journal title
Bulletin of the Graduate School of Integrated Arts and Sciences, Hiroshima University. II, Studies in environmental sciences
volume
Volume 4
start page
23
end page
33
date of issued
2009-12-31
publisher
広島大学大学院総合科学研究科
issn
1881-7696
ncid
SelfDOI
language
jpn
nii type
Departmental Bulletin Paper
HU type
Departmental Bulletin Papers
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 2009 広島大学大学院総合科学研究科
department
Graduate School of Integrated Arts and Sciences
Graduate School of Biosphere Science
他の一覧