Nitta Conglomerate Member

Type locality: Nitta, Yokawa town, Miki city, Hyogo prefecture
Coherent formation
Eocene - Oligocene

Sedimentary facies (Central facies): Braided river near the alluvial fan
Sedimentary facies (Middle facies): margin of Alluvial fan, Braided river
Sedimentary facies (Maarginal facies): upper Alluvial fan
Lithofacies (Central facies): Sandstone, Conglomerate
Lithofacies (Central facies, Minor): Mudstone
Lithofacies (Middle facies): Conglomerate
Lithofacies (Middle facies, Minor): Sandstone, Siltstone
Lithofacies (Marginal facies): Conglomerate
Lithofacies (Marginal facies, Minor): Sandstone, Mudstone
Sedimentary structures (Central facies): Upward-fining
Sedimentary structures (Middle facies): Upward-fining, Cross-stratification, Imbrication structure
Sedimentary structures (Marginal facies): Reversed graded bedding
Paleocurrent (Middle facies): Radially from North to South

Thickness: 40 - 200 m
Thickness (Middle facies): 120 m or thinner
Thickness (Marginal facies): 100 - 150 m
Upper limit: Conformity (Shimoisawa Mudstone Member)
Lower limit: Conformity (Toishigawa Mudstone and Sandstone Member), Unconformity (Arima Group)

Sanda Formation
[ Upper ]
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Shimoisawa Mudstone Member
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Nitta Conglomerate Member
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Toishigawa Mudstone and Sandstone Member
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[ Lower ]

Kobe Group (Sanda, Hyogo pref.)
[ Upper ]
~~~~~~~~~~~~~~
Hosokawa Formation
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Yokawa Formation
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Sanda Formation
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Nitta, Yokawa town, Miki city, Hyogo pref.; Lake Tojoko - Shobudani, Kato city, Hyogo pref.; Okawase - Nishiaino - Kamiaino - Shimoaino - Kamiuchigami - Nishinogami - Ohara - Takasugi - Kamifukata - Tenjin - Shimotanaka - Yamada, Sanda city, Hyogo pref.; Dojo town - Hata town - Arino town, Kobe city, Hyogo pref.; Yamaguchi town - Najio - Higashikubo, Nishinomiya city, Hyogo pref.; Takedao - Kashimogawa river, Takarazuka city, Hyogo pref.
Tephra: Tojoko Tuff

Matsuura et al. (1995) Geology of the Hirone District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 110p. (in Japanese with English abstract 6p.)
Ozaki and Matsuura (1988) Geology of the Sanda District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 93p. (in Japanese with English abstract 5p.)