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Preliminary Drill Core Study of Two Holes Drilled on the Cuyuna Iron Range and Emily Manganiferous Iron Formation District of Minnesota.

Authors
Dahl-LJ; Brink-SE
Source
Paper in Proceedings Inst on Lake Superior Geology 37:26-28
Link
NIOSHTIC No.
10011088
Abstract
U.S. Bureau of Mines research is providing new insights into predicting in situ mining metal recoveries. Potential problems and constraints are being identified and modeled before field leach mining tests are initiated. As part of this research, the Bureau is conducting a geologic characterization study of the drill core from the Cuyuna Range and Emily District, which includes stratigraphy, gangue and ore mineralogy, textural relationships, assays, detailed whole-rock chemical analyses of selected samples, permeability and porosity, fracture analysis, and magnetic susceptibility. A combination of laboratory geologic characterization techniques are being used on whole-core samples to determine ore-gangue and structural relationships of preleach and postleach material. These techniques include petrographic analysis of polished thin sections, scanning electron microscope imaging, electron microprobe analyses, and x-ray diffraction.
Publication Date
19910101
Document Type
OP;
Fiscal Year
1991
NTIS Accession No.
NTIS Price
Identifying No.
OP 262-91
NIOSH Division
TCRC;
Source Name
Paper in Proceedings, Inst. on Lake Superior Geology, V. 37, Pt. 1, PP. 26-28
State
MN;
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