Akatazawa Dacite

[ Top ] [ Japanese ]

Akatazawa Dacite

Intrusive rocks
Pliocene
Intruded by: Augite hypersthene hornblende andesite dike

Sedimentary facies: Stock
Lithofacies: Augite hypersthene dacite, Hornblende-bearing dacite
Structures (Minor): Columnar joint

Nomugitoge Volcanic Rocks
[ Upper ]
~~~~~~~~~~~~~~
Onagadani Pyroclastic Rocks
~~~~~~~~~~~~~~
Tochiborazawa Andesite
~~~~~~~~~~~~~~
Kamagaminejobu Andesite
~~~~~~~~~~~~~~
Kamagaminekabu Dacite
~~~~~~~~~~~~~~
Akatazawa Dacite
~~~~~~~~~~~~~~
Bokujokita Andesite
~~~~~~~~~~~~~~
Nishinokawahontani Composite Mass
~~~~~~~~~~~~~~
[ Lower ]

Jizotoge Volcanic Rocks
[ North ]
~~~~~~~~~~~~~~
Nomugitoge Volcanic Rocks
~~~~~~~~~~~~~~
Nishino Body
~~~~~~~~~~~~~~
Okumine Body
~~~~~~~~~~~~~~
Jizotoge Body
~~~~~~~~~~~~~~
Saichigo Body
~~~~~~~~~~~~~~
[ South ]

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

Distribution: Akatazawa creek - Nomugitoge pass - Togesawa creek, Nagawa, Matsumoto city, Nagano pref.

Nakano et al. (1995) Geology of the Norikuradake District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 139p. (in Japanese with English abstract 4p.)