02498oam 2200637 450 991070711680332120160512164149.0(CKB)5470000002462333(OCoLC)937435796(OCoLC)889600859(EXLCZ)99547000000246233320160208d1991 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierEvidence for continental crustal assimilation in the hemlock formation flood basalts of the Early Proterozoic Penokean orogen, Lake Superior region /by Warren Beck and V. Rama Murthy[Reston, Va.] :U.S. Department of the Interior, U.S. Geological Survey,1991.[Washington, D.C.] :United States Government Printing Office.1 online resource (iv, 25 pages) illustrations, mapsContributions to Precambrian geology of Lake Superior region ;ch. IU.S. Geological Survey bulletin ;1904-ITitle from title screen (viewed May 12, 2016).Includes bibliographical references (pages 19-25).Crustal assimilation, hemlock formation flood basalts, Lake Superior regionRock deformationSuperior, Lake, RegionGeology, StratigraphicProterozoicFlood basaltsSuperior, Lake, RegionGeology, StructuralSuperior, Lake, RegionFlood basaltsfastGeology, StratigraphicfastGeology, StructuralfastProterozoic Geologic PeriodfastRock deformationfastLake Superior RegionfastRock deformationGeology, StratigraphicFlood basaltsGeology, StructuralFlood basalts.Geology, Stratigraphic.Geology, Structural.Proterozoic Geologic Period.Rock deformation.Beck J. Warren1419723Murthy V. RamaGeological Survey (U.S.),OCLCEOCLCECOPOCLCFGPOBOOK9910707116803321Evidence for continental crustal assimilation in the hemlock formation flood basalts of the Early Proterozoic Penokean orogen, Lake Superior region3535210UNINA