Commodities
PrimarySilver
SecondaryCopper
TertiaryZinc
Commodity typeM
Deposit
Deposit typeVein
Deposit sizeS
Ore controlNe-Trending Radial Fault Related To Lake City Caldera Formation
Materials
Ore mineralsChalcopyrite, Silver, Sphalerite
GangueQuartz
Geology
Host rockSandstone,Rhyolite,Quartz Latite · Tuffaceous Sandstone Of Henson Member Of Silverton Volcanics
Associated rockRhyolite,Quartz Latite · 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)
Economic & production
Development statusPast Producer
Identification
Deposit ID10014682
MRDS IDD011564
Alternate namesPatented Claim: Nellie M., Ms 623
RegionNA
Data scoreB
Coordinates38.00723, -107.31202
References
IRVING, J.D., AND BANCROFT, HOWLAND, 1911, GEOLOGY AND ORE DEPOSITS NEAR LAKE CITY, COLORADO: USGS BULL. 478, P. 101.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.BLM MINERAL SURVEY MS 623NELSON-MOORE, J.L., AND OTHERS, 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULL. 40, P. 179-180.