Mineralogy and Metamorphic Zonation in Low-Grade Metasediments from the Priestley Glacier, Northern Victoria Land, Antarctica

The mineralogy and mineral chemistry of low-grade rocks from the upper Pristley Glacier area are described to define the metamorphic zonation and P-T conditions of the Ross age metamorphism. Two metamorphic zones og increasing metamorphc grade have been distinguished: the ankerite and biotite zones. The metamorphic temperature ranges from 320 to 400 °C. The Ross metamorphism falls into the range of low-pressure metamorphism.