[ Top ] [ Japanese ]

Kozagawa Arculate Dyke

• Type locality: Kozagawa city, Higashimuro county, Wakayama prefecture
• Intrusive rocks
• Granitoids of Outer zone, Southwest Japan
• Large scale felsic igneous rocks associated with caldera formation
• Felsic volcan-plutonic complex
• Dyke intruded after of collapse of Kumano caldera
• middle Miocene (17 - 14 Ma, K-Ar; 16 - 145 Ma, FT)
• Intruded in: Kumano Group

• Lithofacies: S-type (Ilmenite series)
• Lithofacies: Tuff, Granite porphyry

• Length: ca. 22 km
• Width: ca. 800 mˆÈ‰º

------ Transitional, ~~~~~~ Intrusive, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Koza river, Kozagawa city - Kushimoto city, Higashimuro county, Wakayama pref.

• Iwano et al. (2009) Jour. Geol. Soc. Japan, vol.115, no.8, pp.427-432 DOI
• Yamashita et al. (2007) Jour. Geol. Soc. Japan, vol.113, no.7, pp.340-352 DOI
• Iwano et al. (2007) Jour. Geol. Soc. Japan, vol.113, no.7, pp.326-339 DOI
• Kawakami and Hoshi (2007) Jour. Geol. Soc. Japan, vol.113, no.7, pp.296-309 DOI