TY - BOOK ID - 134757516 TI - Paleomagnetic and ⁴⁰Ar/³⁹Ar results from the Grant intrusive breccia and comparison to the Permian Downeys Bluff sill--evidence for Permian igneous activity at Hicks Dome, southern Illinois Basin AU - Reynolds, Richard L. AU - Goldhaber, Martin B. AU - Snee, Lawrence W. AU - Geological Survey (U.S.) PY - 1997 PB - Washington : United States Government Printing Office, DB - UniCat KW - Geology, Stratigraphic KW - Igneous rocks KW - Intrusions (Geology) KW - Paleomagnetism KW - From 230 to 280 million years ago KW - Illinois UR - https://www.unicat.be/uniCat?func=search&query=sysid:134757516 AB - ER -