Tateishi Tuff Member

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Tateishi Tuff Member Eto, 1986

Type locality: Maeda river, Akiya, Yokosuka city, Kanagawa prefecture
Accretionary complex
Miocene

Sedimentary facies: Marine
Sedimentary facies: Submarine pyroclastic flow deposit (ca. 220 degree C)
Lithofacies: Basalt - Andesite tuff
Lithofacies (Minor): Lapilli tuff, Tuff breccia
Sedimentary structures: Parallel stratification

Thickness: 0 - 325 m
Upper limit: Unconformity (Miura Group)
Lower limit: Conformity (Morito Formation)

Abuzuru Formation
[ Upper ]
~~~~~~~~~~~~~~
Tateishi Tuff Member
--------------
[ Lower ]

Hayama Group
[ Upper ]
~~~~~~~~~~~~~~
Yabe Formation
::::::::::::::
Kinugasa Formation
/--/--/--/--/-
Oyama Formation
--------------
Abuzuru Formation
--------------
Morito Formation
?--?--?--?--?-
[ Lower ]

Mineoka Belt (Miura peninsula)
[ Upper ]
~~~~~~~~~~~~~~
Miura Group
~~~~~~~~~~~~~~
Hayama Group
?--?--?--?--?-
[ Lower ]

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

Distribution: Maeda river - Tateishi, Akiya, Yokosuka city, Kanagawa pref.; Ashina - Mount Ogusuyama - Nagasaka - Otawa, Yokosuka city, Kanagawa pref.

Takahashi et al. (2016) Jour. Geol. Soc. Japan, vol.122, no.8, pp.375-395, DOI
Eto et al. (1998) Geology of the Yokosuka District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 128p. (in Japanese with English abstract 3p.)