Kanaigaura Formation

Kanaigaura Formation (Hanzawa, 1954) Kambe and Shimazu 1961

Invalid synonym: Kanaegaura Formation

Type locality: Kesennumaoshima island, Kesennuma city, Miyagi prefecture
Volcanic rocks
Cretaceous (122 Ma, K-Ar, 119 Ma, Rb-Sr)
Correlation: Niitsuki Formation

Metamorphic facies: Pumpellyite-Prehnite
Lithofacies: Pigionite-series
Lithofacies: Augite andesite volcanic breccia, Tuff, Tuff breccia
Lithofacies (Minor): Augite basalt volcanic breccia, Tuff, Tuff breccia

Thickness: 380 - 1,200 m
Upper limit: Conformity (Yokonuma Formation)
Lower limit: Unconformity (Kogoshio Formation)

Kesennuma, Miyagi pref.
[ Upper ]
?--?--?--?--?-
Yokonuma Formation
--------------
Kanaigaura Formation
--------------
Niitsuki Formation
--------------
Nagasaki Formation
--------------
Isokusa Formation
?--?--?--?--?-
[ Lower ]

Oshima Group
[ Upper ]
?--?--?--?--?-
Yokonuma Formation
--------------
Kanaigaura Formation
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Kesennumaoshima island - Yokonuma, Kesennuma city, Miyagi pref.

Kamada (1993) Geology of the Tsuya District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 70p. (in Japanese with English abstract 6p.)
Kambe and Shimazu (1961) Kesennuma, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 73p. (in Japanese with English abstract 16p.)