Commodities
PrimarySilver, Copper, Lead
TertiaryZinc, Manganese, Sulfur
Commodity typeB
Deposit
Model85: Polymetallic veins
Deposit sizeS
Ore controlNnw-Trending Fault Beyond Graben
Materials
Ore mineralsChalcopyrite, Galena, Pyrite, Sphalerite, Tennantite
GangueQuartz, Rhodochrosite, Sulfur
Geology
Host rockShale,Siltstone,Sandstone · Dolores Formation;Cutler Formation
Associated rockLatite,Basalt · Basalt;Calico Peak Porphyry
StructureSan Juan Uplift, Paradox Basin, Rico Dome, Calico Peak Anticline, Unnamed Fault
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
Economic & production
Development statusProducer
Last production1921
Identification
Deposit ID10014232
MRDS IDD010909
Alternate namesUnpatented Claims: Rosebud Nos. 1-3, Rosebud Extension, Black Imp Nos. 1-3, Robert Rom, Rosebud Mill Site
RegionNA
Data scoreB
Coordinates37.71751, -108.12287
References
BUSH, A.L., AND BROMFIELD, C.S., 1966, GEOLOGIC MAP OF THE DOLORES PAK QUADRANGLE, DOLORES AND SAN MIGUEL COUNTIES, COLORADO: USGS MAP GQ-536.PRATT, W.P., AND OTHERS, 1969, GEOLOGIC MAP OF THE RICO QUADRANGLE, DOLORES AND MONTEZUMA COUNTIES, COLORADO: USGS MAP GQ-797.BASTIN, E.S., 1922, SILVER ENRICHMENT IN THE SAN JUAN MOUNTAINS, COLORADO: USGS BULL. 735-D, P. 124-127.COLORADO DIV. MINES INF. REPTS. AND ANNUAL OPERATOR REPTS.COLORADO DIV. MINES ANNUAL OPERATOR REPTS.