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Tetsuzan-Yahazumori products

Invalid synonym: Tetsuzan products, Yahazumori Lava

• Volcanic rocks
• Pleistocene

• Lithofacies: Calc-alkaline
• Lithofacies: Augite hypersthene andesite
• Lithofacies (Upper): Welded pyroclastic fall deposit
• Lithofacies (Upper, Minor): Welded pyroclastic flow deposit or pyroclastic surge deposit
• Lithofacies (Lower): Lava
• Sedimentary structures (Upper): Cross stratificaiton

• Source: East of Yahazumori
• Thickness (Lower): 50 m or thicker
• Upper limit: Unconformity (Funamyojinyama Lava, Adatarayama Lava, Numanotaira Welded Pyroclastic Rocks)
• Lower limit: Unconformity (Yakushidake Lava, Minowasan Lava)

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

• Distribution: lower part of the summit of Mount Tetsuzan - Mount Adatara, Fukushima city, Fukushima pref.

• Sakaguchi (1995) Geology of the Nihonmatsu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 79p. (in Japanese with English abstract 4p.)