Widespread Ediacaran-Ordovician Leaky Transform Faults in the Midcontinent, USA: Evidence, Impact, and Tectonic Mechanism

We investigate the NW-SE basement trends of the U.S. Midcontinent, often cited as Proterozoic in age. From a reduced-to-pole magnetic anomaly map, we map basement lineaments over an area of ~1.48 million km2. We compile published Ediacaran-Ordovician