Commodities
PrimarySilver
Commodity typeM
Deposit
Deposit typeVein
Model82: Epithermal veins
Deposit sizeS
WorkingsUnderground
Ore controlFaults; Possibly Andesite, Trachyte Contact; Mineralized Fissures
Materials
Ore mineralsGalena, Sphalerite
GangueQuartz
Geology
Host rockAndesite
Associated rockAndesite · Rosita Andesite; Breccia;Game Ridge Trachyte In Dikes And Sheets
StructureRosita Volcanic Center, Wet Mtns, Small Dikes And Faults
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationWeak Argillization
Economic & production
Development statusPast Producer
Discovery year1895
Identification
Deposit ID10012296
MRDS IDD007849
RegionNA
Data scoreB
Coordinates38.12307, -105.32418
References
CROSS, WHITMAN, 1896, GEOLOGY OF SILVER CLIFF AND THE ROSITA HILLS, COLORADO: USGS 17TH ANN. REPORT, PT 2, P. 263-403.SHARP, W.M., 1978, GEOLOGIC MAP OF THE SILVER CLIFF AND ROSITA VOLCANIC CENTERS, CUSTER COUNTY, COLORADO: USGS MAP I-1081.