@article{oai:nagoya.repo.nii.ac.jp:00016114, author = {Imayama, Takeshi and 今山, 武志}, journal = {名古屋大学加速器質量分析計業績報告書}, month = {Mar}, note = {The P-T-XH2O condition of mafic granulite in far-eastern Nepal has been investigated using multi-equilibrium thermobarometry. Based on retrograde zoning in amphiboles and the amphibole + plagioclase symplectite surrounding garnet and clinopyroxene, the mafic granulite has been overprinted by amphibolite facies metamorphism. The thermobarometric result indicates the presence of low H2O activity fluids with high C02 under granulite facies metamorphic condition. The inferred peak P-T condition is P=c. 8.4±0.2 kbar and T=c. 750±10℃ at XH2O=0.3. This study suggests that it is necessary to know about the precise fluid activity of water when inferring the P-T condition of metabasites., 名古屋大学年代測定総合研究センターシンポジウム報告}, pages = {40--48}, title = {Low H2O activity of fluid in mafic granulite in far-eastern Nepal (forecast)}, volume = {23}, year = {2012} }