pɹɪkˈæmbɹiən mˌɛɾəmˈoːɹfɪk ɹˈɑːks, kəmpˈoʊzd ʌv ɡɹˈænuːlˌaɪtfˈeɪsiz sˈiːkwənsᵻz ɪntɹˈuːdᵻd baɪ ɡɹˈænɪts ænd pˈɛɡmɐtˌaɪts, ɑːɹ ˌoʊvɚlˈeɪn baɪ ðə pˈɜːmiən sˌɛdɪmˈɛntɚɹi ˈeɪmɚɹi ɡɹˈuːp.
Precambrian metamorphic rocks, composed of granulite-facies sequences intruded by granites and pegmatites, are overlain by the Permian sedimentary Amery Group.