Search U.S. government technical reports digitized or harvested by TRAIL.
Investigation of Scallon-Todd lease, Aitkin County, Minn.
Core-drill sampling of Cuyuna-range manganiferous iron formations, Crow Wing County, Minn.
Anionic flotation of silica from geothitic iron-bearing materials, Cuyuna Range, Minn.
Experimental conversion of hematite to magnetite with solid reductants
Flotation of Marquette Range nonmagnetic taconite using innovative procedures