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Horaguchi Lava

• Volcanic rocks
• Neogene - Pleistocene

• Lithofacies: Quartz-bearing two-pyroxene andesite

• Upper limit: Unconformity (Oshi Pyroclastic Flow Deposit)

• Distribution: Horaguchi, Naganohara city, Agatsuma county, Gunma pref.

• Ota (1957) Kusatsu, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 75p. (in Japanese with English abstract 8p.)