Mammoth-Revenue Mine

Conejos County, Colorado, United States

GoldSilverLeadCopperAntimonyZincMolybdenum

⌖ Show on map USGS source ↗

Commodities

PrimaryGold, Silver

SecondaryLead, Copper

TertiaryAntimony, Zinc, Molybdenum

Commodity typeM

Deposit

Deposit typeVein

Model154: Epithermal quartz-alunite Au

Deposit sizeS

Ore controlWider, Steeper Portions Of Fault Zone Next To Cornwall Resurgent Block

Materials

Ore mineralsChalcocite, Covellite, Digenite, Electrum, Galena, Gold, Marcasite, Miargyrite, Molybdenite, Polybasite, Proustite, Pyrargyrite, Pyrrhotite, Silver, Sphalerite, Zinkenite

GangueAnhydrite, Barite, Calcite, Chalcedony, Quartz

Geology

Host rockQuartz Latite · La Jara Canyon Member Of Treasure Mountain Tuff

Associated rockQuartz Latite · La Jara Canyon Member Of Treasure Mountain Tuff

StructureSan Juan Volcanic Field, Platoro Caldera, Summitville Caldera, Platoro Fault Zone, Cornwall Block

Tectonic settingCentral Cordillera (Southern Rocky Mtns)

AlterationAll Wallrock Is Silicified To Some Extent Within Vein And Up To 6.5 Ft Into Footwall And Up To 16.5 Ft Into Hanging Wall. In Hanging Wall Zones, All Material Within 1.6 Ft Of Vein Is Completely Silicified. Sericite Progressivly Prominent At 1.6 To 6.5 Ft And Dominant From 6.5 To 26 Ft. At 13 Ft, Kaolinite Prominent. At 26 Ft, Rock Shows Regional Argillization.

Economic & production

Development statusProducer

Identification

Deposit ID10014101

MRDS IDD010731

Alternate namesMiddle, MS 5636, Revenue, MS 5722, Burris, MS 6255, Hyman, MS 6255, Hallam, MS 6255, Grover Cleveland, MS 6256, Aztec, MS 6256, Morning Star, MS 6256, Arms, MS 6256, Auraria, MS 6535, Etruria, MS 6535, Pavonia, MS 6535, Servia, MS 6535, Umbria, MS 6535, Mammoth Mine, Mammoth Group, Patented Claims: Mammoth, MS 5628a, Mammoth Mill Site, MS 5628b

RegionNA

Data scoreB

Coordinates37.34669, -106.53504

References

PATTON, H.B., 1917, GEOLOGY AND ORE DEPOSITS OF THE PLATORO-SUMMITVILLE MINING DISTRICT, COLORADO: CGS BULL. 13.LIPMAN, P.W., 1974, GEOLOGIC MAP OF THE PLATORO CALDERA AREA, SOUTHEASTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-828.BIRD, W.H., 1972, MINERAL DEPOSITS OF THE SOUTHERN PORTION OF THE PLATORO CALDERA COMPLEX, SOUTHEAST SAN JUAN MOUNTAINS, COLORADO: MTN. GEOLOGIST, V. 9, NO. 4, P. 379-387.COLORADO DIV. MINES INF. REPTS. AND ANNUAL OPERATOR REPTS.BLM MINERAL SURVEYS MS 5628A&B, 5722A&B, 5636A&B, 6255, 6256, 6535BIRD, W.H., 1973, DEVELOPMENT OF THE SOUTHERN PORTION OF THE PLATORO CALDERA COMPLEX AND ITS RELATED MINERAL DEPOSITS, SOUTHEAST SAN JUAN MOUNTAINS, COLORADO: COLORADO SCHOOL OF MINES THESIS T-1440.COLORADO DIV. MINES ANN. OPERATOR REPTS.; USBM MINERALS YEARBOOKS 1966-1974