Hetano Pumiceous Tuff Member

[ Top ] [ Japanese ]

Hetano Pumiceous Tuff Member Suzuki, 1954

Tephra
middle Miocene
Correlation: Ajigaura Pumiceous Tuff Member

Sedimentary facies: Marine
Sedimentary facies: Submarine pyroclastic flow deposit
Lithofacies: Rhyolitic pyroclastic flow deposit
Sedimentary structures: Parallel stratification

Thickness: 50 m or thicker

Taga Group (Nakaminato, Ibaraki pref.)
[ Upper ]
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Hetano Pumiceous Tuff Member / Ajigaura Pumiceous Tuff Member
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[ Lower ]

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

Distribution: Hetano, Hitachinaka city, Ibaraki pref.

Sakamoto et al. (1972) Geology of the Nakaminato District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 94p. (in Japanese with English abstract 5p.)