| Reference | {Deposit:: SIMS, P.K.,1972. BANDED IRON-FORMATIONS IN VERMILION DISTRICT; IN; SIMS,P.K. AND MOREY,G.B.,EDS., GEOLOGYOF MINNESOTA; A CENTENNIAL VOLUME, MINN.GEOL.SURV., P.79-81.}{Deposit:: MOREY, G.B.,ET.AL.,1970. STRATIGRAPHY OF THE LOWER PRECAMBRIAN ROCKS IN THE VERMILION DISTRICT, NORTHEASTERN MINNESOTA, MINN.GEOL.SURV. R.I. 14, 33P.}{Production:: TRETHEWEY, W.D., 1974, UNIV. MINN. BULL., MINING DIRECTORY ISSUE} |