Manitazawa Lava

[ Top ] [ Japanese ]

Manitazawa Lava Takahashi and Nishiki, 2006

Type locality: Manita creek, Saku city, Nagano prefecture
Volcanic rocks
early Pleistocene (1.16 Ma, K-Ar)

Lithofacies: Andesite, Dacite
Lithofacies: Lavas (a flow unit)

Eruptive volume: 0.5 km³ or more
Thickness: 5 m

Kasuga Volcanic Rocks
[ Upper ]
--------------
Okawaratoge Pyroclastics
--------------
Karasawa Lavas
--------------
Nagato Lavas
--------------
Manitazawa Lava
--------------
Mochizuki Volcaniclastics
--------------
Tatamiishi Lava
--------------
[ Lower ]

Tokin-no-iwa volcanic body
[ Upper ]
--------------
Kasuga Volcanic Rocks
--------------
[ Lower ]

Yabashira volcanoes
[ Upper ]
--------------
Kengamine volcanic body
--------------
Byobuiwa volcanic body
--------------
Yabashirayama volcanic body
--------------
Ryugamine volcanic body
--------------
Tokin-no-iwa volcanic body
--------------
[ Lower ]

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

Distribution: 1,120 m above sea level, Manita creek, Saku city, Nagano pref.

Nishiki and Takahashi (2012) Jour. Geol. Soc. Japan, vol.118, no.8, pp.499-515 DOI