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Title Transcription
シコク トウブ サンバガワタイ ヒロイシ チイキ ノ チシツ ト ヘンセイ サヨウ
Title Alternative (English)
Geology and metamorphism of the Hiroishi area in the Sambagawa belt, eastern Shikoku, Japan
File
language
jpn
Author
Mabuchi, Emi
Description
The Sambagawa metamorphic belt in the Hiroishi area,eastern Shikoku,is divided into four geotectonic units based on the lithology in ascending order of the tectonic level i.e.the Units A,B,C and D.The Unit B is subdivided into the Units B1 and B2 on the basis of the size of the albite porphyroblasts.The boundary between the Units B1 and B2 is probably of fault contact.The lower part of the Units B2 shows the metamorphism of the upper chlorite zone to the gamet zone.The other portions of the Sambagawa schists of the Hiroishi area were suffered the chlorite zone metamorphism.
The basic shists in this area are divided into two types.One is basic schist with crossite or magnesio-riebeckite,and the other is that with glaucophane or crossite.The boundary between the distribution of two types of the basic scists is probably located close to the boundary between the Units B1 and B2.Based on the chemistry and the zonal structure of the alkali amphiboles in the basic schists above and beneath the boundary,two different P-T paths are suggested in this area.
Journal Title
島根大学地球資源環境学研究報告
Volume
16
Start Page
21
End Page
35
ISSN
13439774
Published Date
1997-12-25
NCID
AA11455176
DOI(SelfDOI)
Publisher
島根大学総合理工学部地球資源環境学教室
Publisher Aalternative
Department of Geoscience, Interdisciplinary Faculty of Science and Engineering, Shimane University
NII Type
Departmental Bulletin Paper
Format
PDF
Text Version
出版社版
OAI-PMH Set
Interdisciplinary Graduate School of Science and Engineering
Remark
12-14,16+ / 1993+
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