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Hijiriyama Volcanic Rocks Iijima et al., 1968

Volcanic rocks of Hijiriyama Volcanics, Mitsumineyama Volcanics, andesite of Mount Sasayama, and andesite of Mount Takaoyama. There had been a discussion these rocks are a part of a volcanic eddifce, Hijiriyama volcano but it is denied.

• Distribution: Mount Hijiri - Mount Mitsumine, Nagano city - Omi city, Higashichikuma county, Nagano pref.; Mount Takao - Mount Sasayama, Chikuma city, Nagano pref.

• Kato (1980) Geology of the Sakaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 57p. (in Japanese with English abstract 5p.)