Solving the Midwest's biggest geologic mystery
Tuesday, March 11, 2014 - 07:30
in Paleontology & Archaeology
(Phys.org) —Geologists from Northwestern University, the University of Illinois at Chicago, the University of Oklahoma and Purdue University have a new explanation for the Midwest's biggest geologic mystery: What caused the giant 2,000-mile-long rift that starts in Lake Superior and runs south to Oklahoma and Alabama?