【摘 要】
:
Grandidierite, kornerupine, and tourmaline occur in high-grade pelitic gneisses from the Larsemann Hills, East Antarctica. The three minerals contact to each o
【出 处】
:
Antarctic Research
论文部分内容阅读
Grandidierite, kornerupine, and tourmaline occur in high-grade pelitic gneisses from the Larsemann Hills, East Antarctica. The three minerals contact to each other and show a special order: Trn_1→Gdd→Trn_2→Krn→Trn_3, suggesting the occurrence of the assemblage is controlled by the temporal changes of the chemical potentials of B_2O_3 and H_2O. The discovery of the assemblage is a good constraint on the seting and composition feature of metamorphism in the area.
Grandidierite, kornerupine, and tourmaline occur in high-grade pelitic gneisses from the Larsemann Hills, East Antarctica. The three minerals contact to each other and show a special order: Trn_1 → Gdd → Trn_2 → Krn → Trn_3, suggesting the occurrence of the assemblage is controlled by the temporal changes of the chemical potentials of B 2 O 3 and H 2 O. The discovery of the assemblage is a good constraint on the seting and composition feature of metamorphism in the area.
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