Mine detail: Gunflint Corridor West

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Location: Cook County, Minnesota, United States, North America
Lat / long: 48.08611, -90.84736
dep_id: 10072946
mrds_id: W018677
Commodity type: metallic
Trace mineral: Copper, Nickel
Operation type: Unknown
Production size: Unknown
Development status: Occurrence
ore: Bornite, Chalcopyrite
gangue: Biotite, Olivine, Plagioclase, Pyroxene, Pyrrhotite
orebody_fm: TABULAR
work_type: Surface
model: 9: Duluth Cu-Ni-PGE
conc_proc: See General Comments.
ore_ctrl: Sulfides Segregated In Basal Troctolites Sub-Parallel To Lower Contact.
Reporter: Sutphin, David M., Mason Jr., G.T.
hrock_unit: Poplar Lake Intrusion
hrock_type: Troctolite
disc_yr: 1966
discr: Cleveland-Cliffs Iron Co.
References:
  • Deposit:: JOHNSON, R.G., 1970, ECONOMIC GEOLOGY OF A PORTION OF THE DULUTH COMPLEX, UNIV. OF IOWA PHD THESIS.
  • Deposit:: WEIBLEN, AND MOREY, 1975, THE DULUTH COMPLEX--AN INTEGRATED SUMMARY; PROC. A.I.M.E.
  • Deposit:: 1969 GEOLMAP MINN. GEOLOGICAL SURVEY OPEN FILE MA
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