Commodities
PrimarySilver
SecondaryGold
Commodity typeM
Deposit
Deposit typeVein
Model154: Epithermal quartz-alunite Au
Deposit sizeS
WorkingsUnderground
Ore controlMineralized Fissures, Many Small Faults
Materials
Ore mineralsPyrite
GangueQuartz
Geology
Host rockTrachyandesite
Associated rockTrachyandesite · Bunker Trachyandesite;San Isabel Gneiss
StructureRosita Volcanic Center, Wet Mtns, Ring Fault, Small Faults
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationStrongly Argillized
Economic & production
Development statusPast Producer
Discovery year1882
Identification
Deposit ID10012188
MRDS IDD007658
RegionNA
Data scoreB
Coordinates38.12834, -105.34029
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 MAPS I-1081.