Seta Member

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Seta Gravels Member Kobiwako Research Group, 1981

Invalid synonym: Ishiyama Gravels Member, Terabe Sands Member

Type locality: Do - Jinryo town, Seta, Otsu city, Shiga prefecture
Coherent formation
Pleistocene
Correlation: Zenjoji Formation

Sedimentary facies: Terrestrial
Sedimentary facies: Fluvial
Lithofacies: Gravels
Lithofacies (Minor): Silt, Sands, Wood fragments
Sedimentary structures: Cross-stratification, Parallel stratification, Upward fining

Thickness: ca. 60 - 83 m or thicker
Upper limit: Interfingered (Sakuragaoka Sands and Clays Member)
Lower limit: Transitional (Asagarano Sands Member, Nango Gravels and Clays Member)

Kusatsu Formation (Ritto, Shiga pref.)
[ Upper ]
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Sakuragaoka Sands and Clays Member
'''''''/,,,,,,
Seta Gravels Member
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Asagarano 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 ]

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

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

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

Distribution: Do - Matsugaoka - Shibahara - Nogohara - Inazu - Nango - Sencho - Ohira - Terabe, Otsu city, Shiga pref.; Jinryo town - Tsukinowa town, Seta, Otsu city, Shiga pref.; Yamadera town - Baba town - Aoji town - Maruoshinden, Kusatsu city Shiga pref.; Kamitoyama - Shimodoyama - Arahari, Ritto city, Shiga pref.
Fossils (Insects): family Harpalidae, Plateumaris sp.
Fossils (Plants): Distylopsis parrioidea, Ginkgo biloba, Juglans mandshurica, Juglans megacinerea, Menyanthes trifolia, Metasequoia disticha, Picea maximowiczii, Pinus koraiensis
Tephra: Terabe Tephra, Ishiyama I, Ishiyama II, Shimotoyama I, Shimotoyama II, Maruoshinden, Kasayama, Sakuragaoka, Ohira I, Ohira II, Kitawaki

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.)
Nakano et al. (2003) Geology of the Minakuchi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 83p. (in Japanese with English abstract 3p.)
Yoshida et al. (2003) Geology of the Omi-Hachiman District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 72p. (in Japanese with English abstract 3p.)
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.)