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Title Transcription
サングン ヘンセイタイ オサヤマ チイキサン ヒスイ キセキブツ ノ キョウセイ カンケイ ト カガク ソセイ
Title Alternative (English)
Mineral Paragenesis and Chemical Compositions of the Constituent Minerals of Jadeitites from the Osayama Area m the Sangun Metamorphic Belt, Southwest Japan
File
language
eng
Author
Sakamoto, Shizue
Kashiwabara, Y.
Description
Jadeitites (OsaJd and OsaJd2) from the serpentinites of the Osayama ultramafic body in the Sangun metamorphic belt (Suo belt) are petrographically described. Wollastonite and albite are newly found in the jadeitite of OsaJd associated with jadeite, pectolite, grossular and analcite. Magnesiokatophorite has been found from the jadeitite of OsaJd2, and it is associated with jadeite, omphacite, diopside, phlogopite, rutile and titanite. The clinopyroxenes from the jadeitite (OsaJd2) are classified into jadeite, omphacite and diopside. The compositional gaps between jadeite and omphacite and omphacite and diopside have been revealed. Based on the textural relationship a successive formation of clinopyroxenes from jadeite through omphacite and up to diopside is recognized.
Ca-rich minerals such as diopside, wollastonite, pectolite and grossular occur along the cracks within the matrix of jadeites, suggesting later stage Ca-rich fluid infiltration and subsequent participation of such Ca-rich minerals.
Journal Title
島根大学総合理工学部紀要. シリーズA
Volume
34
Start Page
1
End Page
12
ISSN
13427113
Published Date
2000-12-24
NCID
AA11157087
Publisher
島根大学総合理工学部
Publisher Aalternative
Interdisciplinary Faculty of Science and Engineering, Shimane University
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Interdisciplinary Graduate School of Science and Engineering
Remark
30-41+ / 1997-2007
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