Purple Propylite Member

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Purple Propylite Member

Volcanic rocks
early Miocene

Sedimentary facies: Terrestrial
Lithofacies: Propylitic andesite lava

Thickness: 20 - 70 m
Upper limit: Conformity (Variegated Tuff Member)
Lower limit: Conformity (Purple Tuff Breccia Member)

Gongenzaki Formation (Minmaya)
[ Upper ]
~~~~~~~~~~~~~~
Variegated Tuff Member
--------------
Purple Propylite Member
--------------
Purple Tuff Breccia Member
~~~~~~~~~~~~~~
[ Lower ]

Northern Tsugaru peninsula
[ Upper ]
--------------
Nagane Formation
--------------
Fuyube Formation
--------------
Isomatsu Formation
~~~~~~~~~~~~~~
Gongenzaki Formation
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Koyobi creek, Kodomari, Nakadomari city, Kitatsugaru county, Aomori pref.

Ota et al. (1957) Mimmaya, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 30p. (in Japanese with English abstract 5p.)