[ Top ] [ Japanese ]

Tatematazawa Formation Ozawa et al., 1983

Formerly included in Nenbazawa Formation.

• Type locality: Tatemata creek, Fujisato city, Yamamoto county, Akita prefecture
• Coherent formation
• Forearc basin sediments
• Pleistocene
• Correlation: Shibikawa Formation

• Sedimentary facies: Lacustrine
• Lithofacies: Sandstone, Conglomerate
• Lithofacies (Minor): Volcanic ash

• Thickness: 15 m or thicker
• Upper limit: Interfingered (Daira-Komagatake Volcanic Products)
• Lower limit: Unconformity (Kuroishizawa Formation, Hayaguchigawa Formation)

• Distribution: Tatemata creek - Higashimata forest road, Fujisato city, Yamamoto county, Akita pref.

• Ozawa et al. (1983) Geology of the Nakahama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 62p. (in Japanese with English abstract 4p.)