| Location: | Saguache, Gunnison County, Colorado, United States, North America |
| Lat / long: | 38.37667, -106.76812 |
| dep_id: | 10014554 |
| mrds_id: | D011378 |
| Commodity type: | metallic |
| Major mineral: | Gold, Silver, Copper |
| Minor mineral: | Vanadium, Zinc |
| Trace mineral: | Lead, Mercury, Tantalum, Tungsten, Uranium, Manganese |
| Operation type: | Unknown |
| Production size: | Small ammount of material produced |
| Development status: | Producer |
| ore: | Gold, Pitchblende, Torbernite, Uranophane, Zippeite |
| gangue: | Barite, Chlorite, Epidote, Fluorite, Hematite, Limonite, Malachite, Marcasite, Pyrite, Pyrrhotite, Quartz, Sericite, Tantalite |
| alteration: | Fe Oxidation; Chloritization In Quartz-Sulfide Veins; Sericitization; Kaolinitization Of Feldspar In Quartz Monzonite |
| conc_proc: | Uranium Concentrated By Upward Percolation Of Hydrothermal Solutions Under Epithermal Conditions As Result Of Possible Post-Flow Doming (Cochetopa And Razor Creek Domes) In Cochetopa Park Caldera. Sulfides Concentrated By Original Submarine Volcanic/Fumarolic Deposition In Lenses On Local Disconformities. |
| ore_ctrl: | Uranium And Mercury Controlled By East-West-And Ene-Trending Tertiary Faults Cutting Jurassic-Cretaceous Sedimentary Rocks And Underlying Precambrain Rocks. Base And Precious Metals Controlled By Original Deposition (By Chemical Precipitation) In Submarine Volcanic And Fumarolic Environment; Possible Later Precambrian Remobilization In Quartz-Chlorite Veins That Are Spatially And Probably Genetically Related To Gold Basin Quartz Diorite-Quartz Monzonite Stock To West. |
| Reporter: | Schwochow, Stephen D. |
| hrock_unit: | Metasedimentary Rocks;Dubois Greenstone--Amphibolite;Junction Creek Sandstone And Morrison Formation;Dakota Sandstone |
| hrock_type: | Quartz Monzonite,Quartzite,Phyllite,Schist,Amphibolite,Sandstone |
| arock_unit: | Quartz Monzonite Of Cochetopa Creek;Pegmatite;Quartz Vein;Early Intermediate-Composition Breccias And Flows |
| arock_type: | Quartz Monzonite,Diorite,Rhyodacite,Quartz Latite,Pegmatite |
| Structure: | San Juan Volcanic Field, Gunnison Uplift, Gunnison Gold Belt, Cochetopa Pluton, Gold Basin Stock, Cochetopa Park Caldera, Cochetopa Dome, Razor Creek Dome, Los Ochos Fault |
| tectonic: | Central Cordillera (Southern Rocky Mtns) |
| Year first produced: | 1887 |
| yr_lst_prd: | 1962 |
| disc_yr: | 1885 |
| References: |
- Deposit:: HEDLUND, D.., AND OLSON, J.C., 1981, PRECAMBRIAN GEOLOGY ALONG PARTS OF THE GUNNISON UPLIFT OF SOUTHWESTERN COLORADO, IN EPIS, R.C., AND CALLENDER, J.F., EDS., WESTERN SLOPE COLORADO: NEW MEXICO GEOL. SOC. 32D FIELD CONF. GUIDEBOOK, P. 267-272.
- Deposit:: MALAN, R.C., AND RANSPOT, H.W., 1959, GEOLOGY OF THE URANIUM DEPOSITS IN THE COCHETOPA MINING DISTRICT, SAGUACHE AND GUNNISON COUBTIES, COLORADO: ECON. GEOLOGY, A. 54, NO. 1, P. 1-19.
- Deposit:: OLSON, J.C., 1976, GEOLOGIC MAP OF THE IRIS QUADRANGLE, GUNNISON AND SAGUACHE COUNTIES, COLORADO: USGS MAP GQ-1286.
- Deposit:: OLSON, J.C., 1976, GEOLOGIC MAP OF THE HOUSTON GULCH QUADRANGLE, GUNNISON AND SAGUACHE COUNTIES, COLORADO: USGS MAP GQ-1287.
- Deposit:: OLSON, J.C., AND STEVEN, T.A., 1976, GEOLOGIC MAP OF THE SAWTOOTH MOUNTAIN QUADRANGLE, SAGUACHE COUNTY, COLORADO: USGS MAP MF-733.
- Deposit:: OLSON, J.C., AND STEVEN, T.S., 1976, GEOLOGIC MAP OF THE RAZOR CREEK DOME QUADRANGLE, SAGUACHE COUNTY, COLORADO: USGS MAP MF-748.
- Deposit:: SHERIDAN, D.M., AND OTHERS, 1981, PRECAMBRIAN SULFIDE DEPOSITS IN THE GUNNISON REGION, COLORADO, IN EPIS, R.C., AND CALLENDER, J.F., EDS., WESTERN SLOPE COLORADO: NEW MEXICO GEOL. SOC. 32D FIELD CONF. GUIDEBOOK, P. 273-277.
- Deposit:: WRIGJT. R.J., AND EVERHART, D.L., 1960, URANIUM--COCHETOPA DISTRICT, IN DEL RIO, S.M., MINERAL RESOURCES OF COLORADO, FIRST SEQUEL: COLORADO STATE MINERAL RESOYRCES BD., P. 353-357.
- Deposit:: COLORADO DIV. MINES ONF. REPTS. AND ANNUAL OPERATOR REPTS.
- Deposit:: BLM MINERAL SURVEYS
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