Sakuratoge Pyroclastics Member

[ Top ] [ Japanese ]

Sakuratoge Pyroclastics Member

Type locality: Yamanashi prefecture
Volcanic rocks
Miocene

Lithofacies (Upper): Dacite lava
Lithofacies (Lower): Dacite tuff, Tuff breccia, Dacite, Two-pyroxene basalt
Lithofacies (Lower, Minor): Dacite lava, Mudstone, Sandstone

Lower limit: Conformity (Shibire Tuff Breccia Member)

Ichikawadaimon Formation
[ Upper ]
--------------
Ubaguchi Dacite Member
--------------
Sakuratoge Pyroclastics Member
--------------
Shibire Tuff Breccia Member
--------------
[ Lower ]

Nishiyatsushiro Group (eastern Kofu, Yamanashi pref.)
[ Upper ]
--------------
Ichikawadaimon Formation
--------------
Ashigawa Formation
--------------
[ Lower ]

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

Distribution: Ashigawa river - Kawaura - Koshoji temple, Ichikawamisato city, Nishiyatsushiro county, Yamanashi pref.

Katada (1956) Kofu, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 27p. (in Japanese with English abstract 4p.)