TY - RPRT TI - Evidence for continental crustal assimilation in the Hemlock Formation flood basalts of the early Proterozoic Penokean Orogen, Lake Superior region AU - J. Warren Beck AU - V. Rama Murthy AU - L. M. H. Carter PY - 1991 DO - 10.3133/b1904i UR - https://pubs.usgs.gov/publication/b1904I ID - b1904I ER -