Mine detail: Garo Deposit

Previously called 'Duvall DiscoveryShirley May Mine'

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Location: Park County, Colorado, United States, North America
Lat / long: 39.09583, -105.89088
dep_id: 10013017
mrds_id: D009076
Commodity type: metallic
Major mineral: Vanadium, Radium, Uranium
Minor mineral: Copper
Operation type: Unknown
Production size: Small ammount of material produced
Development status: Past Producer
ore: Chalcocite, Chrysocolla, Covellite, Malachite, Tyuyamunite, Uranophane
gangue: Calcite, Chalcedony, Hematite, Limonite, Pyrite
orebody_fm: LENTICULAR BODIES
work_type: Surface/Underground
alteration: Oxidation
ore_ctrl: Ore Is Localized Near Fault Intersections In The Relatively More Permeable, Coarser-Grained Sandstones. The Faults In The Area Have Been Numbered, And Most Of The Mineralized Sandstone And All Of The Mined Ore Deposits Are Between Faults 3 And 5, Generally Where Those Faults Are Cut By Longitudinal Faults; Changes In Dip May Have Localized Ore
Reporter: Collins, Donna B.
hrock_unit: Maroon Formation
hrock_type: Sandstone
Structure: South Park, Nw-Trending Garo Anticline; Complex High Angle, Normal And Reverse Faults, Striking N10w To N35e And Dipping As Much As 88 Degree Se; There Is As Much As 1000 Feet Of Displacement Horizontally Along Some Faults, And 60 Ft Vertically; The Faults Are Left Lateral, Moving The Western Side Of The Fault Northward; Small, North-Plunging Folds Locally
tectonic: Central, Cordillera, (Southern Rocky Mountains)
Year first produced: 1919
disc_yr: 1903
References:
  • Deposit:: WILMARTH, V.R., 1959, GEOLOGY OF THE GARO URANIUM-VANADIUM COPPER DEPOSIT, PARK COUNTY, COLORADO: USGS BULLETIN 1087-A, 21 P.
  • Deposit:: NELSON-MOORE, J.L., COLLINS, D.B. AND HORNBAKER, A.L., 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULLETIN 40,P. 366.
  • Deposit:: BRYANT, BRUCE, MCGREW, L.W. AND WOBUS, R.A., 1981, GEOLOGIC MAP OF THE DENVER 1 DEGREE X 2 DEGREES QUADRANGLE, NORTH-CENTRAL COLORADO: USGS MAP I-1163, 1:250,000
  • Production:: WILMARTH, V.R., 1959; NELSON-MOORE, J.L. AND OTHERS, 1978;
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