Chojyagahara maar

Chojyagahara maar Koyama et al., 1995

Type locality: Tanohara, Izunokuni city, Shizuoka prefecture
Volcanic rocks

Monogenetic volcano

Pleistocene (0.26 - 0.13 Ma)

Lithofacies: Lapilli tuff
Lithofacies (Minor): Volcanic silt

Thickness: several - 8 m
Lower limit: Unconformity (Usami volcano, Ajiro volcano)

Higashiizu monogenetic volcanoces
[ North ]
~~~~~~~~~~~~~~
Chojyagahara maar
~~~~~~~~~~~~~~
Sukumoyama volcano
~~~~~~~~~~~~~~
[ South ]

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

Distribution: Tanohara - Kameishi pass, Izunokuni city, Shizuoka pref.

Oikawa and Ishizuka (2011) Geology of the Atami District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 61p. (in Japanese with English abstract 3p.)