Hesoyama Lava

[ Top ] [ Japanese ]

Hesoyama Lava Hayatsu, 1972

Type locality: Mount Hesoyama, Shinano city, Kamiminochi county, Nagano prefecture
Volcanic rocks
Stratovolcano
Pleistocene

Lithofacies: Lava (A flow unit)

Thickness: 20 m or thicker
Upper limit: Unconformity (Nanamagarisaka Lava, Mikaerisaka Lava)

2nd stage
[ Upper ]
~~~~~~~~~~~~~~
Takazawa Scoria
~~~~~~~~~~~~~~
1559m-ho Lava
~~~~~~~~~~~~~~
Tenguiwa Lava
~~~~~~~~~~~~~~
Nanamagarisaka Lava
~~~~~~~~~~~~~~
Ichirozawa Lava
~~~~~~~~~~~~~~
Hesoyama Lava
~~~~~~~~~~~~~~
[ Lower ]

Kurohime volcano
[ Upper ]
~~~~~~~~~~~~~~
3rd stage
~~~~~~~~~~~~~~
2nd stage
~~~~~~~~~~~~~~
1st stage
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Mount Hesoyama, Shinano city, Kamiminochi county, Nagano pref.

Nagamori et al. (2003) Geology of the Togakushi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 109p. (in Japanese with English abstract 3p.)