Hiraen Clays Member

[ Top ] [ Japanese ]

Hiraen Clays Member Hayashi, 1974

Coherent formation
Pleistocene

Sedimentary facies: Terrestrial
Lithofacies: Clay

Thickness: 35 - 40 m

Minamisho Clays Member (Katata, Shiga pref.)
[ Upper ]
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Sagawa Clays Member
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Kurihara Alternation Member
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Hiraen Clays Member
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[ Lower ]

Katata Formation (west Biwako, Shiga pref.)
[ Upper ]
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Ryuge Sands and Gravels Member / Yamashita Alternation Member
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Minamisho Clays Member
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Wani Sands Member
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[ Lower ]

Kobiwako Group (Omi basin, Iga basin)
[ 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
~~~~~~~~~~~~~~
[ Lower ]

Kobiwako Group (Yokoyama et al., 1979)
[ Upper ]
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Takashima Formation
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Katata Formation
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Yokaichi Formation
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Gamo Formation
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Sayama Formation
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Iga-Aburahi Formation
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Shimagawara 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
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Shiga pref.
Tephra: Biotite II Tephra

Kimura et al. (1998) Geology of the Kyoto-Tohokubu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 89p. (in Japanese with English abstract 5p.)
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.)