Takatoriyama Volcaniclastics Member

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Takatoriyama Volcaniclastics Member (Nasu, 1950) Eto et al., 1998

Type locality: Mount Takatoriyama, Zushi city - Yokosuka city, Kanagawa prefecture
Volcanic rocks
Pliocene
Contemporaneous heterotopic facies: Jimmuji Volcaniclastics and Mudstone Member

Sedimentary facies: Marine
Depth of water: upper Bathyal
Lithofacies: Tuffaceous sandstone, Basalt - Andesite lapilli tuff
Sedimentary structures (Minor): Cross stratification, Graded bedding

Thickness: 0 - 210 m
Lower limit: Conformity, partly Unconformity (Zushi Formation)

Ikego Formation
[ Upper ]
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Takatoriyama Volcaniclastics Member / Jimmuji Volcaniclastics and Mudstone Member
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[ Lower ]

Miura Group (Northern Miura peninsula)
[ Upper ]
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Ikego Formation
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Zushi Formation
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[ Lower ]

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

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

Distribution: Mount Takatoriyama, Zushi city - Yokosuka city, Kanagawa pref.; Numama - Hoshoji temple, Zushi city, Kanagawa pref.; Nishisensui, Kamakura city, Kanagawa pref.
Fossils: Foraminifera, Calcareous nannofossils
Fossils (Shellfishes): Calyptogena nipponica

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.)