Abstract
Faure (1983) proposed a ductile shear zone located at the boundary between the spotted and non-spotted schists zones in the Koutsu-Bizan area. Tectonic blocks of serpentinite, metagabbro and garnet amphibolite are described in this shear zone between the spotted and non-spotted schists zones.
Thin layers of siliceous and pelitic schists, contain garnet and aegirine-augite.