TY - RPRT TI - Chemistry, mineralogy, and K-Ar ages of igneous and metamorphic rocks of the Medfra quadrangle, Alaska AU - E. J. Moll AU - M.L. Silberman AU - W. W. Patton PY - 1980 DO - 10.3133/ofr80811c UR - https://pubs.usgs.gov/publication/ofr80811C ID - ofr80811C ER -