Mine detail: Domingo District

Previously called 'Vulcan DistrictPatented Claims: Vulcan, MS 10909War Eagle, MS 10910Humming Bird, MS 10910Rose Bud, MS 10910Iron Clad, MS 10910Della S., MS 11243Morning Star, MS 11243St.Patrick, MS 12175Mammoth Chimney, MS 12454Good Hope, MS 12456Lincoln, MS 13156Golden Slipper, MS 13179Humboldt, MS 16392Branch, MS 17215Eclipse, MS 17390Yellow Rose, MS 17390Laura Belle, MS 19038Mill Site Lode, MS 19920'

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Location

Lat / long:

38.34528, -107.00173

Resource(B)

Primary:	Gold, Silver
Secondary:	Sulfur, Copper
Tertiary:	Tellurium, Lead, Zinc, Selenium, Bismuth, Thorium, Vanadium
Ore:	Chalcopyrite, Copper, Galena, Gold, Petzite, Rickardite, Sphalerite, Sulfur, Sylvanite, Thorite
Gangue:	Chlorite, Coloradoite, Jasper, Limonite, Magnetite, Pyrrhotite, Quartz, Sericite, Tetradymite
Discovery year:	1894

Production

Operation type:	Unknown
Production size:	Small
Development status:	Producer
First production started:	1898
Last production ended:	1983

Geology

Host rock:	Dubois Greenstone--Felsite And Felsite Porphyry;Dubois Greenstone--Quartzite
Host type:	Trachyte,Granite
Associated rock:	Granite Of Tolvar Jpeak;Trachyte And Trachyte Porphyry Dikes;Carbonatite;Quartz Vein
Associated type:	Intrusive Carbonatite,Trachyte,Andesite,Granite
Structure:	Gunnison Uplift, San Juan Volcanic Field, Gunnison Gold Belt, Iron Hill Alkalic Complex, Tolvar Peak Stock
Tectonic:	Central Cordillera (Southern Rocky Mtns)
Alteration processes:	Oxidation Of Pyrite To Fe Oxides And Native S; Sericitization And Chloritization Of Schist Near Mineralized Zone; Supergene Alteration Of Cu Sulfide To Covellite; Supergene Alteration Of Tellurides To Native Te And Cu Tellurides (Rickardite, Weissite, Vulcanite)

References

MRDS	D011132
DEP	10014386
Reference	{Deposit:: DROBECK, P.A., 1981, PROTEROZOIC SYNGENETIC MASSIVE SULFIDE DEPOSITS IN THE GUNNISON GOLD BELT, COLORADO, IN EPIS, R.C., AND CALLENDER, J.F., EDS., WESTERN SLOPE COLORADO: NEW MEXICO GEOL. SOC. 32D FIELD CONF. GUIDEBOOK, P. 279-286.}{Deposit:: HARTLEY, P.D., 1976, THE GEOLOGY AND MINERALIZATION OF A PRECAMBRIAN MASSIVE SULFIDE DEPOSIT AT VULCAN, GUNNISON COUNTY, COLORADO: STANFORD UNIV. M.SC. THESIS.}{Deposit:: HARTLEY, P.D., 1983, GEOLOGY AND MINERALIZATION OF THE VULCAN-GOOD HOPE MASSIVE SULFIDE DEPOSIT, GUNNISON COUNTY, COLORADO, IN HANDFIELD, R.C., ED., GUNNISON GOLD BELT AND POWDERHORN CARBONATITE FIELD TRIP GUIDEBOOK: DREGS, P. 19-27.}{Deposit:: HEDLUND, D.C., AND OLSON, J.C., 1975, GEOLOGIC MAP OF THE POWDERHORN QUADRANGLE, GUNNISON AND SAGUACHE COUNTIES, COLORADO: USGS MAP GQ-1178.}{Deposit:: LAKES, ARTHUR, 1896, SKETCH OF A PORTION OF THE GUNNISON GOLD BELT INCLUDING THE VULCAN AND MAMMOTH CHIMNEY MINES: AIME TRANS., V. 26, P. 440-448.}{Deposit:: OLSON, J.C., AND OTHERS, 1975, GEOLOGIC MAP OF THE SPRING HILL CREEK QUADRANGLE, SAGUACHE COUNTY, COLORADO: USGS MAP MF-713.}{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:: CAMERON, E.N., AND THREADGOLD, I.M., 1961, VULCANITE, A NEW COPPER TELLURIDE FROM COLORADO: AM. MINERALOGIST, V. 46, P. 258-268.}{Deposit:: COLORADO DIV. MINES INF. REPTS. AND ANNUAL OPERATOR REPTS.}{Deposit:: BLM MINERAL SURVEYS MS 10909, 10910, 11243, 12175, 12454, 12456, 13156, 13179, 16392, 17390, 19038, 199920}
Reporter	Schwochow, Stephen D.