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Takashimizu Formation Matsuno, 1967

Matsuno (1967) defined by separating the upper part from Onoda Formation.

Invalid synonym: Nitta Formation

• Type locality: Oyamada, Takashimizu, Kurihara city, Miyagi prefecture
• Coherent formation
• early - middle Pleistocene
• Contemporaneous heterotopic facies: Higashihara Formation
• Correlation: Nakayama Formation

• Water temperature: Freshwate, Terrestrialr
• Climate: Subarctic (Pollen)
• Lithofacies: Conglomerate, Sandstone, Siltstone
• Lithofacies (Upper, Minor): Pumice tuff (Umegasawa Tuff)
• Lithofacies (Minor): Lignite
• Sedimentary structures: Trough cross-stratification

• Thickness: 10 - 60 m
• Upper limit: Unconformity (Iketsuki Tuff, Shimoyamasato Tuff, Nizaka Tuff)
• Lower limit: Conformity, partly unconformity (Onoda Formation), Unconformity (Tsukidate Formation, Kazawa Formation, Onuki Formation)

• Distribution: Oyamada, Takashimizu - Hagita - Yaekabe - Shinden, Kurihara city, Miyagi pref.; Yanagime, Ichihasama, Kurihara city, Miyagi pref.; Terukoshi, Tsukidate, Kurihara city, Miyagi pref.; Lake Izunuma, Toyoma city - Kurihara city, Miyagi pref.; Kejo pond, Furukawa, Osaki city, Miyagi pref.
• Fossils (Pollen): Abies sp., Picea sp., Pinus sp., Tsuga sp.
• Tephra: Umegasawa Tuff

• Tsuchiya et al. (1997) Geology of the Iwagasaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 96p. (in Japanese with English abstract 4p.)
• Kitamura et al. (1981) Geology of the Furukawa District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 32p. (in Japanese with English abstract 4p.)
• Takahashi and Matsuno (1969) Geology of the Wakuya District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 26p. (in Japanese with English abstract 6p.)
• Matsuno (1967) Geology of the Wakayanagi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 24p. (in Japanese with English abstract 5p.)