[ Top ] [ Japanese ]

Senchokita Lava

• Volcanic rocks
• middle Pleistocene

• Lithofacies: Hypersthene augite olivine andesite lava (2 flow units)
• Lithofacies (Bottom): Clinker
• Structures (Upper): Platy joint

• Thickness: 20 m or thicker
• Thickness (Bottom): ca. 5 m
• Upper limit: Unconformity (Sencho Lava)
• Lower limit: Unconformity (Nyukawa Pyroclastic Flow Deposit)

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

• Distribution: 1,950 - 2,000 m above sea level, Iwaidani valley, Nyukawa town, 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.)