TY - RPRT TI - High-grade iron ore deposits of the Mesabi Range, Minnesota-product of a continental-scale proterozoic ground-water flow system AU - G. B. Morey PY - 1999 DO - 10.2113/gsecongeo.94.1.133 UR - https://pubs.usgs.gov/publication/70022125 ID - 70022125 ER -