Funayama Mudstone Member

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Funayama Mudstone Member Sugiyama and Matsuda, 2014

Type locality: Funayama river, Funayama hot spring, Nanbu city, Minamikoma county, Yamanashi prefecture
Coherent formation
middle Miocene
Correlation: Tokiwa Formation
Intruded by: Diorite, Andesite

Sedimentary facies: Marine
Lithofacies: Mudstone
Lithofacies (Minor): Basalt reworked tuff, Tuffaceous sandstone, Dacite pumice tuff, Tuffaceous sandstone

Thickness: ca. 700 m
Upper limit: Conformity (Kuonji Formation)
Lower limit: Conformity (Kayanokitoge Basalt Member)

Gotenyama Formation
[ Upper ]
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Funayama Mudstone Member
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Kayanokitoge Basalt Member
?--?--?--?--?-
[ Lower ]

Nishiyatsushiro Group (western Minobu, Yamanashi pref.)
[ Upper ]
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Gotenyama Formation
?--?--?--?--?-
[ Lower ]

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

Distribution: Funayama hot spring - Hongo - Narushima, Nanbu city, Minamikoma county, Yamanashi pref.; Aimata, Minobu city, Minamikoma county Yamanashi pref.

Ozaki and Sugiyama (2018) Geology of the Minobu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 169p. (in Japanese with English abstract 7p.)