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Kuroiwa Basalt Lava

• Volcanic rocks
• Pliocene

• Lithofacies: Olivine trachybasalt, Olivine basalt lava

• Thickness: 200 m or thicker
• Lower limit: Unconformity (Mochigase Granite, Chizu Granite, Sangun Metamorphic Rocks)

• Distribution: Kuroiwakogen highland, Tottori pref. - Okayama pref.

• Yamada (1966) Chizu, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 69p. (in Japanese with English abstract 11p.)