R6: Plutonic rocks, volcanic rocks and subduction factory

[R6P-07] Relationship between cathodoluminescence images and titanium and aluminum concentrations in quartz from the Okueyama granite

*MINORI WATANABE¹, TAKENORI KATO², YASUHIRO OGITA³, TAKASHI YUGUCHI¹ (1. Yamagata Univ., 2. Nagoya Univ., 3. JAEA)

Keywords:Ouartz, EPMA, Cathodoluminescence pattern, TitaniQ thermometer, Okueyama granite

Quartz is one of the common minerals in felsic plutonic rocks. Crystallization process of quartz contributes to clarifying the formation process of the felsic pluton. In this study, we investigate cathodoluminescence(CL) patterns and titanium(Ti) and aluminum(Al) concentrations in quartz, in order to obtain the crystallization processes of quartzs from the Okueyama granite, Kyushu, Japan. The high Ti and Al concentrations are correlated with high brightness zone in the CL oscillatory zoning.