広島県三段峡地域における節理の形成過程 <論文>
Use this link to cite this item : http://doi.org/10.15027/29025
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 |