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Monomiyama Formation

• Volcanic rocks
• Early Cretaceous

• Lithofacies: Volcaniclastic rocks
• Lithofacies (Minor): Lava, Tuffaceous slate, Sandstone, Slate, Conglomerate

• Thickness: 2,500 - 3,000 m
• Upper limit: Fault
• Lower limit: Fault

• Distribution: Iwate pref.

• Hirokawa and Yoshida (1954) Hitokabe, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 33p. (in Japanese with English abstract 14p.)