Uranium and Thorium Data for Selected Precambrian Rock Units in Northern Wisconsin Open-file report; contains unpublished data that has not yet been peer-reviewed. Bedrock Geology Energy Precambrian Bedrock Data and Resources WOFR1988-03 Uranium and Thorium Data for Selected Precambrian Rock Units in Northern Wisconsin Mursky, Gregory; Anderson, J.W.; Cook, T.R.; Meddaugh, W.S.; 1988 Report: 46 p. Download Related Collections Open-File Report View Open-File Report