Graphite-tremolite rocks at Bačkovice near Jemnice (West Moravia)

Abstract

Graphite-tremolite rocks at Bačkovice, with simple mineral assemblage (tremolite, graphite, biotite, titanite and chlorite), represent rare rocks type in the Gföhl unit (Moldanubicum). Chemical composition and mineralogy indicate that protholite is a volcano-sedimentary Ca-rich rocks rather than basic or ultrabazic igneous rocks.Graphite-tremolite rocks at Bačkovice, with simple mineral assemblage (tremolite, graphite, biotite, titanite and chlorite), represent rare rocks type in the Gföhl unit (Moldanubicum). Chemical composition and mineralogy indicate that protholite is a volcano-sedimentary Ca-rich rocks rather than basic or ultrabazic igneous rocks

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