Tengudakechubu Lava

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Tengudakechubu Lava

Volcanic rocks
Pleistocene

Lithofacies: Hornblende hypersthene augite andesite lava (more than 8 flow units)
Lithofacies (Minor): Agglomerate

Source: East cliff of Mount Tengudake
Thickness: 160 m
Distribution (Width): 100 m or more
Running distance: 6 km
Lower limit: Unconformity (Yokoyakyo Lava)

Tengudake Lava
[ Upper ]
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Suribachiike Lava
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Tengudakejobu Lava
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Tengudakechubu Lava
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Tengudakekabu Lava
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[ Lower ]

Northern Yatsugatake volcanoes (Mount Tengu)
[ Upper ]
+__+__+__+__+_
Tengudake Lava
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[ Lower ]

Yatsugatake volcanoes (North of Natsuzawa pass)
[ Upper ]
+__+__+__+__+_
Northern Yatsugatake volcanoes
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Totarunosawa creek - Karasawa creek - Happodai, Chino city, Nagano pref.

Kawachi (1974) Geology of the Tateshinayama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 114p. (in Japanese with English abstract 5p.)