Commodities
PrimarySilver, Gold
SecondaryLead, Copper
TertiaryZinc, Bismuth, Manganese, Antimony
Commodity typeM
Deposit
Deposit typeVein
Deposit sizeS
Orebody formLENTICULAR, PINCH AND SWELL
Ore controlNe-Trending Radial Fault Related To Lake City Caldera Formation
Materials
Ore mineralsPolybasite, Sphalerite
Geology
Host rockSandstone,Rhyolite,Quartz Latite · Tuffaceous Sandstone Of Henson Member Of Silverton Volcanics
Associated rockRhyolite · Eureka Member Of Sapinero Mesa Tuff;Fish Canyon Tuff
StructureSan Juan Volcanic Field, San Juan Depression, San Juan-Uncompahgre Calderas, Lake City Caldera
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationSilification
Economic & production
Development statusPast Producer
Last production1974
Identification
Deposit ID10014681
MRDS IDD011563
Alternate namesMonte Earl, Unpatented Claims: Monte Queen, Monte King, Monte Prince, Monte Princess, Monte Duke
RegionNA
Data scoreB
Coordinates38.00529, -107.31119
References
IRVING, J.D., AND BANCROFT, HOWLAND, 1911, GEOLOGY AND ORE DEPOSITS NEAR LAKE CITY, COLORADO: USGS BULL. 478, P. 99-100.LIPMAN, P.W., 1976, GEOLOGIC MAP OF THE LAKE CITY CALDERA AREA, WESTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-962.LIPMAN, P.W., AND OTHERS, 1976, MULTIPLE AGES OF MID-TERTIARY MINERALIZATION AND ALTERATION IN THE WESTERN SAN JUAN MOUNTAINS, COLORADO: ECON. GEOLOGY, V. 71, NO. 3, P. 571-588.SLACK, J.F., 1980, MULTISTAGE VEIN ORES OF THE LAKE CITY DISTRICT, WESTERN SAN JUAN MOUNTAINS, COLORADO: ECON. GEOLOGY, V. 75, NO. 7, P. 963-991.COLORADO DIV. MINES INF. REPTS. AND ANNUAL OPERATOR REPTS.COLORADO DIV. MINES ANNUAL OPERATOR REPTS.; USGS MINERAL RESOURCES OF U.X. (1917)