The rise and fall a cratonic arch: A regional seismic perspective on the Peace River Arch, Alberta

摘要

The Peace River Arch(PRA)is a roughly east-west striking cratonic element of the Western Canada Sedimentary Basin that cuts across the trend of underlying Paleoproterozoic basement tectonic domains at a high angle. This region Preserves several distinct phases of tectonic evolution during the Phanerozoic that included an early-to mid-Paleozoic Arch phase and a Carboniferous-to-Triassic embayment phase. In 1994,Lithoprobe recorded the first public-domain Regional seismic-reflection survey across the PRA, a 627-km transect called the Peace River Arch Industry Seismic Experiment(PRAISE).