このエントリーをはてなブックマークに追加
ID 27368
file
creator
Tatsukami, Minako
Yoshino, Gensei
subject
contact metamorphism
Hiroshima granite
cordierite
NDC
Earth sciences. Geology
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.
journal title
Bulletin of the Faculty of School Education, Hiroshima University. Part II
volume
Volume 20
start page
69
end page
78
date of issued
1998-01
publisher
広島大学学校教育学部
issn
0387-4869
ncid
language
eng
nii type
Departmental Bulletin Paper
HU type
Departmental Bulletin Papers
DCMI type
text
format
application/pdf
text version
publisher
department
Graduate School of Education
他の一覧