Commodities
PrimaryVanadium, Radium, Uranium
SecondaryCopper
Commodity typeM
Deposit
Deposit sizeS
WorkingsSurface/Underground
Orebody formLENTICULAR BODIES
Ore controlOre 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
Materials
Ore mineralsChalcocite, Chrysocolla, Covellite, Malachite, Tyuyamunite, Uranophane
GangueCalcite, Chalcedony, Hematite, Limonite, Pyrite
Geology
Host rockSandstone · Maroon Formation
StructureSouth 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 settingCentral, Cordillera, (Southern Rocky Mountains)
AlterationOxidation
Economic & production
Development statusPast Producer
First production1919
Discovery year1903
Identification
Deposit ID10013017
MRDS IDD009076
Alternate namesDuvall Discovery, Shirley May Mine
RegionNA
Data scoreB
Coordinates39.09583, -105.89088
References
WILMARTH, V.R., 1959, GEOLOGY OF THE GARO URANIUM-VANADIUM COPPER DEPOSIT, PARK COUNTY, COLORADO: USGS BULLETIN 1087-A, 21 P.NELSON-MOORE, J.L., COLLINS, D.B. AND HORNBAKER, A.L., 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULLETIN 40,P. 366.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, 1:250,000WILMARTH, V.R., 1959; NELSON-MOORE, J.L. AND OTHERS, 1978;