Bulletin of the Faculty of Education, Yamaguchi University. Natural science

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Bulletin of the Faculty of Education, Yamaguchi University. Natural science Volume 25 Issue 2
published_at 1975-09

Sangun Metamorphic Rocks of the Masuda District, Sanin Provinces Japan

島根県益田地域の三郡変成岩類
Okamura Yoshihiko
Nishimura Yujiro
Hase Akira
Soeda Akira
Okimura Yuji
Hirowatari Fumitoshi
Motomura Yoshinobu
Akatsuka Masami
Inoue Tazuo
Aguin Hirosuke
Otani Kenichi
Kojima Shoichiro
Descriptions
Masuda-Misumi distict occupies the Sanin branch of the Sangun metamorphic belt which is the most extensive regional metamorphic belt in the inner zone of southwest Japan. In this district, various kinds of low grade metamorphic rocks such as pelitic schist, siliceous schist, psammitic schist and greenschist derived from the Upper paleozoic geosynclinal deposits are distributed continuously from Misumi-cho to Masuda-shi. The Sangun metamorphic rocks of this district are grouped stratigraphically into three groups. They are summarised as following table