[ Top ] [ Japanese ]

Karasawa Granodiorite (Yamazaki et al., 1976)

Invalid synonym: Karasawa Quartz Diorite

• Plutonic rocks
• Miocene (14 - 6 Ma, K-Ar, FT)

• Lithofacies: Biotite hornblende granodiorite

• Upper limit: Unconformity (Wadabokujyo Volcanics, Karasawagawa Volcanics, Yateikurasawa Volcaniclastics, Utsukushigahara Volcanics)
• Upper limit: Abut (Hirokoba Lava)

• Distribution: Utsukushigahara plateau, Nagano pref.

• Mukai et al. (2009) Jour. Geol. Soc. Japan, vol.115, no.8, pp.400-422 DOI