広島県三段峡地域における節理の形成過程 <論文>
広島大学大学院総合科学研究科紀要. II, 環境科学研究 Volume 4
Page 23-33
published_at 2009-12-31
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この文献の参照には次のURLをご利用ください : https://doi.org/10.15027/29025
| File | |
| Title ( jpn ) |
広島県三段峡地域における節理の形成過程 <論文>
|
| Title ( eng ) |
Development of joints in the Sandankyo Area, Hiroshima Prefecture, Southwest Japan <Articles>
|
| Creator |
Hayashi Takaya
Nakai Shinichi
Tsushima Atsuo
|
| Source Title |
広島大学大学院総合科学研究科紀要. II, 環境科学研究
Bulletin of the Graduate School of Integrated Arts and Sciences, Hiroshima University. II, Studies in environmental sciences
|
| Volume | 4 |
| Start Page | 23 |
| End Page | 33 |
| 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.
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| NDC |
Earth sciences. Geology [ 450 ]
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| Language |
jpn
|
| Resource Type | departmental bulletin paper |
| Publisher |
広島大学大学院総合科学研究科
|
| Date of Issued | 2009-12-31 |
| Rights |
Copyright (c) 2009 広島大学大学院総合科学研究科
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| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 1881-7696
[NCID] AA12198658
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