Pre-Cambrian in origin and about 1.7 billion years old; there are various igneous intrusions including pegmatite, as well as "bands" of gneiss and schist.
There are various igneous intrusions including pegmatite, as well as "bands" of gneiss and schist. Pre-Cambrian in origin and about 1.7 billion years old,.
Pre-Cambrian in origin and about 1.7 billion years old,. There are various igneous intrusions including pegmatite, as well as "bands" of gneiss and schist.
Pre-Cambrian in origin and about 1.7 billion years old,. There are various igneous intrusions including pegmatite, as well as "bands" of gneiss and schist.