Element migration accompanied by the development of cataclasites in drill core penetrating the Median Tectonic Line, southwest Japan

Abstract

We have analyzed element migration in drill core penetrating the Median Tectonic Line, southwest Japan with X-ray fluorescence analysis. It has been found out that the amount of SiO2 increased accompanied by the mass increase with increasing cataclasis at first, which is followed by decrease in the amount of SiO2 accompanied by the mass decrease with further increasing cataclasis (i.e. two-stage development of cataclasite).