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Site characterization of Minnesota manganese deposits to evaluate the potential for in situ leach mining.

Dahl LJ; Brink SE; Blake RL; Tuzinski PA; Adamson NR

SME Annual Meeting, February 24-27, 1992, Phoenix, Arizona, preprint 92-243. Littleton, CO: Society for Mining, Metallurgy, and Exploration, Inc., 1992 Feb; :1-26

10003415

The U.S. Department of the Interior, Bureau of Mines is developing a process to selectively extract manganese from oxide ores as part of its in situ leach mining research program. The Bureau is conducting site characterization studies of two manganiferous iron-formation deposits which include: drill core, regional stratigraphic relationships from the existing geologic database, ore body geometry, geologic structure, hydrologic conditions, proximity of ore minerals to the leach fluid paths, surface subsidence potential, and data collected from laboratory leaching experiments. This information is being used to evaluate the technical, environmental, and economic feasibility of in situ leach mining of manganese for these two deposits. This paper will focus on the stratigraphy, mineralogy, ore textures, fractures, permeability, and porosity as they relate to in situ leach mining.

Mining industry; In situ mining; Mineral deposits; Minerals; Metals; Metal mining

19920201

Conference/Symposia Proceedings

1992

OP 27-93

TCRC

1992 SME Annual Meeting, February 24-27, 1992, Phoenix, Arizona, preprint 92-243

MN; AZ; CO