Odoshimazawa Pyroclastic Flow Deposit

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Odoshimazawa Pyroclastic Flow Deposit

Tephra
Miocene (9.0 Ma, FT)
Correlation: Takasato Pyroclastic Flow Deposit?

Sedimentary facies: Terrestrial
Lithofacies: Pyroclastic flow deposit
Lithofacies: Lapilli tuff, Tuff breccia

Host: Minami-aizu Formation
Thickness: 70 - 100 m

Minami-aizu Formation
[ Upper ]
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Komadotoge Pyroclastic Flow Deposit
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Fluvial deposit
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Odoshimazawa Pyroclastic Flow Deposit
~~~~~~~~~~~~~~
[ Lower ]

Miyashita, Fukushima pref.
[ Upper ]
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Minami-aizu Formation
~~~~~~~~~~~~~~
Matsuzakatoge Formation
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Fuzawa Formation
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Takizawagawa Formation
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[ Lower ]

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

Distribution: Mount Nanatsugatake, Minamiaizu city, Minamiaizu county, Fukushima pref.

Yamamoto et al. (2006) Geology of the Kitakata District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 63p. (in Japanese with English abstract 5p.)
Yamamoto and Komazawa (2004) Geology of the Miyashita District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 71p. (in Japanese with English abstract 5p.)