Kokubu Gravels and Clays Member

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Kokubu Gravels and Clays Member (Kobiwako Research Group, 1992) Wakita et al., 2013

Invalid synonym: Kokubu Alternatioon Member, Seta Gravels 2 Member, Jinryo Sands Member

Type locality: Kamibeppo town, Zeze, Otsu city, Shiga prefecture
Coherent formation
Pleistocene

Sedimentary facies: Terrestrial
Lithofacies: Gravels
Lithofacies (Minor): Silt, Sands, Peat

Thickness: ca. 15- 80 m
Upper limit: Conformity (Fujimidai Sands and Clays Member)
Lower limit: Unconformity (Tamba Belt)

Katata Formation (south Biwako, Shiga pref.)
[ Upper ]
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Chausuyama Gravels Member
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Fujimidai Sands and Clays Member
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Kokubu Gravels and Clays Member
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[ Lower ]

Kobiwako Group
[ Upper ]
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Takashima Formation
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Katata Formation
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Kusatsu Formation
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Gamo Formation
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Koka Formation
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Ayama Formation
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Iga Formation
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Ueno Formation
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[ Lower ]

Second Setouchi Supergroup (Shiga pref.)
[ Upper ]
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Kobiwako Group
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[ Lower ]

[ Upper ]
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Second Setouchi Supergroup
?--?--?--?--?-
First Setouchi Supergroup
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[ Lower ]

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

Distribution: Kamibeppo town, Zeze, Otsu city, Shiga pref.; Kokubu - Ikenosato - Asahigaoka, Otsu city, Shiga pref.
Fossils: Plants, family Harpalidae, Plateumaris sp.
Tephra: Kukubu I, Kokubu II, Ikenouchi I, Ikenouchi II, Ikenouchi III, Kamibeppo

Wakita et al. (2013) Geology of the Kyoto-Tonambu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 124p. (in Japanese with English abstract 3p.)
Ishida et al. (1984) Geology of the Hikone-Seibu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 121p. (in Japanese with English abstract 6p.)