Tashidagawa Formation

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Tashidagawa Formation Yoshida, 1989

Type locality: Tashidagawa river, Fujiwara town, Inabe city, Mie prefecture
Coherent formation
Fluvio-lacustrine basin including Lake Tokai
Pliocene - Pleistocene

Sedimentary facies: Fluvial
Sedimentary facies: Alluvial fan
Lithofacies: Gravels, Mud
Lithofacies (Minor): Sands
Sedimentary structures: Graded bedding, Channel structure
Paleocurrent: from West to East

Thickness: 430 - 560 m
Upper limit: Transitional (Oizumi Formation)
Lower limit: Transitional (Kono Formation, Biroku Formation), Unconformity (Mino Belt)

Tokai Group (Mount Gozaishoyama, Mie pref.)
[ Upper ]
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Komeno Formation
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Oizumi Formation
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Tashidagawa Formation
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Kono Formation
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Ishigure Formation
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Biroku Formation
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[ Lower ]

Second Setouchi Supergroup (Mie pref. - Aichi pref.)
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Tokai Group
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[ 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: Nishinojiri - Tashidagawa river - Minamidanigawa river - Gentagawa river - Tomotanigawa river - Sugitanigawa river, Fujiwara town, Inabe city, Mie pref.; Odakakogen - Mount Fukuozan, Komono city, Mie county, Mie pref.
Fossils (Plants): Carex sp., Metasequoia disticha, Quercus dentata, Quercus variabilis, Sarex sp., Styrax japonica
Tephra: Ishigure Tephra, Terao Tephra

Yoshida et al. (1991) Geology of the Kuwana District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 154p. (in Japanese with English abstract 5p.)
Harayama et al. (1989) Geology of the Gozaishoyama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 145p. (in Japanese with English abstract 6p.)