Contact Metamorphism in the Area around the Lower Reaches of the Oze River, Southwest Japan
広島大学学校教育学部紀要. 第二部 Volume 20
Page 69-78
published_at 1998-01
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| File | |
| Title ( eng ) |
Contact Metamorphism in the Area around the Lower Reaches of the Oze River, Southwest Japan
|
| Creator |
Tatsukami Minako
Yoshino Gensei
|
| Source Title |
広島大学学校教育学部紀要. 第二部
Bulletin of the Faculty of School Education, Hiroshima University. Part II
|
| Volume | 20 |
| Start Page | 69 |
| End Page | 78 |
| Abstract |
In the studied area, through the field and microscopic studies in detail, based upon variations in the mineral assemblage, progressive sequence of mudstone in the studied have been divided into 5 zones, in order of increasing metamorphism; Zone I characterized by chlorite, Zone II by yellow-colored biotite in pleochroism, the Zone III by brown-colored biotite in pleochroism, the Zone IV by cordierite and the Zone V by cordierite replaced into assemblage of chlorite and mica minerals. Distribution of the contact aureole can be regarded to reflect on both the structure of the granite body occurring in a sheet-like body below the land surface, and the movement of actual Otake Fault. The replaced cordierite appear in Zone V can be regarded to formed through hydrothermal reaction in the latest stage of the intrusion process of Hiroshima granite.
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| Keywords |
contact metamorphism
Hiroshima granite
cordierite
|
| NDC |
Earth sciences. Geology [ 450 ]
|
| Language |
eng
|
| Resource Type | departmental bulletin paper |
| Publisher |
広島大学学校教育学部
|
| Date of Issued | 1998-01 |
| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0387-4869
[NCID] AN00213348
|
