High-pressure medium-temperature metamorphism of semi-pelitic rocks in the Scotia Metamorphic Complex, Powell Island, South Orkney Islands, Antarctica - Costa, Rodrigo Vinagre da; Moraes, Renato de; Trouw, Rudolph Allard Johannes; Simões, Luiz Sérgio Amarante; Mendes, Julio Cezar (Journal of South American Earth Sciences, 2019)