Quick examination of heavy mineral composition based on chemical analysis using electron probe microanalyzer in the Tono Geoscience Center

Yonaga, Yusuke; Shimizu, Mayuko   ; Sano, Naomi; Ueki, Tadamasa; Yoshikawa, Kiyotaka*; Niwa, Masakazu   

Study on the formation process of mountains provides important clues for evaluating the uplift and erosion related to long-term changes of geological environment for geological disposal. Provenance analysis of detrital sediments is often be effective to understand the process. In the Tono Geoscience Center, quick and efficient mineralogical and chemical analyses for heavy minerals in basement rocks and sediments have been developed using the electron probe microanalyzer (JEOL JXA-8530F EPMA), as one of the promising tool for provenance analysis. To contribute evaluation of the analyses, sample preparation and EPMA analyses of heavy minerals were shown in this paper.