R8: Metamorphic rocks and tectonics

[R8P-04] Investigating sulfur pathways using sulfur isotopes in high-grade metamorphic rocks at Mt. Riiser-Larsen, Napier Complex, East Antarctica

*Tokuya Mitsubori¹, Madhusoodhan Satish-Kumar², Tomokazu Hokada³ (1. Niigata Univ. Grad. Sci., 2. Niigata Univ. Sci., 3. NIPR)

Keywords:Sulfide minerals, Sulfur isotope, UHT metamorphic rocks, Napier Complex

High-grade metamorphic rocks widely spread in the Mt. Riiser-Larsen, Napier Complex, East Antarctica, which experienced 1000-1100 ℃, 0.6-0.9 GPa peak metamorphism. We focused on sulfide minerals in these rocks. We will present the occurrence of sulfide minerals and sulfur isotope ratios and discussion about sulfur movement.