These old cratonic blocks, along with accreted island arc terranes and intraoceanic deposits from earlier Proterozoic and Mesozoic oceans and seaways, were sutured together in the Trans-Hudson oregon (THO) and resulted in extensive folding and thrust faulting along with metamorphism and granitic intrusion.
These old cratonic blocks, along with accreted island arc terranes and intraoceanic deposits from earlier Proterozoic and Mesozoic oceans and seaways, were sutured together in the Trans-Hudson oregon (THO). The event occurred 1.9-1.8 billion years ago and resulted in extensive folding and thrust faulting along with metamorphism and granitic intrusion.