Geology of Yukon
The geology of Yukon includes sections of ancient Precambrian Proterozoic rock from the western edge of the proto-North American continent Laurentia, with several different island arc terranes added through the Paleozoic, Mesozoic and Cenozoic, driving volcanism, pluton formation and sedimentation. == Geologic history, stratigraphy and tectonics == The rocks of eastern Yukon, together with those in neighboring British Columbia and Northwest Territories formed beginning more than 1.7 billion years ago in the Proterozoic.