Commodities
PrimarySilver, Gold, Copper
SecondaryLead
TertiaryAntimony
Commodity typeM
Deposit
Deposit typeVein
Deposit sizeN
Ore controlNe-Trending Fault/Fracture Transverse To Lake City Caldera Ring Fault But Subparallel To Trend Of Pre-Lake City Caldera Eureka Graben.
Materials
Ore mineralsGalena
GangueCalcite, Quartz, Sericite
Geology
Host rockVolcanic Breccia (Agglomerate) · Picayune Megabreccia Member Of Sapinero Mesa Tuff
Associated rockRhyolite · Eureka Member Of Sapinero Mesa Tuff
StructureSan Juan Volcanic Field, San Juan Depression, San Juan-Uncompahgre Calderas, Lake City Caldera, Eureka Graben
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
Economic & production
Development statusOccurrence
Identification
Deposit ID10094703
MRDS IDD011622
Alternate namesPatented Claims: Treasure Hill Spar, Ms 1085
RegionNA
Data scoreB
Coordinates38.03694, -107.39507
References
IRVING, J.D., AND BANCROFT, HOWLAND, 1911, GEOLOGY AND ORE DEPOSITS NEAR LAKE CITY, COLORADO: USGS BULL, 478.SLACK, J.F., 1980, MULTISTAGE VEIN ORES OF THE LAKE CITY DISTRICT, WESTERN SAN MOUNTAINS, COLORADO: ECON. GEOLOGY, V. 75, NO. 7, P. 963-991.LIPMAN, P.W., 1976, GEOLOGIC MAP OF THE LAKE CITY CALDERA AREA, WESTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-962.STEVEN, T.A., AND OTHERS, 1977, MINERAL RESOURCES OF STUDY AREAS CONTIGUOUS TO THE UNCOMPAHGRE PRIMITIVE AREA, SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS BULL. 1391-C, P. 84-85, 110-111.BLM MINERAL SURVEY MS 1085