This report describes the results of a 4-year study of the potential for platinum group elements (PGE) and associated metals in mafic to ultramafic intrusions in Minnesota, excluding the Duluth Complex. Phase 1 of the study, conducted during the 2002-2003 biennium, produced an extensive database of geologic, geochemical, and geochronologic information about the intrusions, which was released to open-file on the MGS website. Phase 2 of the study, conducted 2004-2006, refined the earlier data and focused effort on select intrusions identified as having some potential for PGE and being broadly representative of the diverse intrusion types and ages. Geochemical data from Phase 2 were released to open-file in 2006 (Jirsa and others, 2006a; on the MGS website: geo.umn.edu/mgs/released documents). This Final Report summarizes the work conducted and results obtained during both phases of the study.
Jirsa, M.A., Miller, J.D., Jr., and Severson, M.J., and Chandler, V.W., 2006, Final report on the geology, geochemistry, geophysical attributes, and platinum group element potential of mafic to ultramafic intrusions in Minnesota, excluding the Duluth Complex: Minnesota Geological Survey Open-File Report OF-06-3.
Jirsa, M.A.; Miller, James D., Jr.; Severson, M.J.; Chandler, V.W..
OFR06-03, Final Report on the Geology, Geochemistry, Geophysical Attributes, and Platinum Group Element Potential of Mafic to Ultramafic Intrusions in Minnesota, Excluding the Duluth Complex.
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