%0 Book %A Cunningham, Charles G. %E Cunningham, Charles G. %I United States Gov. Print. Office %D 1994 %C Washington, DC %D 1994 %G English %B US Geological Survey bulletin %~ Universitätsbibliothek "Georgius Agricola" %T Ages of selected intrusive rocks and associated ore deposits in the Colorado Mineral Belt: sixty-three fission-track and K-Ar age determinations help understand the temporal and spatial evolution of the Colorado Mineral Belt %Z https://katalog.ub.tu-freiberg.de/Record/0-1113962550 %U https://katalog.ub.tu-freiberg.de/Record/0-1113962550