[ Top ] [ Japanese ]

Takamagahara Volcaniclastic Breccia

• Volcanic rocks
• middle Pleistocene

• Lithofacies: Tuff breccia, Lapilli tuff
• Lithofacies (Minor): Volcanic breccia, Silt

• Thickness: ca. 200 m
• Upper limit: Unconformity (Bandokoro Lava, Dakedani Lava)
• Lower limit: Unconformity (Maekawa Lava)

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

• Distribution: Takamagahara, Matsumoto city, Nagano pref. - Takayama city, Gifu 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.)