Commodities
PrimaryLead, Silver
SecondaryCopper
TertiaryIron
Commodity typeM
Deposit
Model82: Epithermal veins
Deposit sizeS
Ore controlHumboldt-Pocahontas Vein; Mineralized Fissures
Materials
Ore mineralsChalcopyrite, Galena, Pyrite, Silver, Stephanite, Tetrahedrite
GangueBarite, Calcite, Clay
Geology
Host rockVolcanic Breccia (Agglomerate),Andesite
Associated rockRhyolite,Trachyte,Andesite · Rosita Andesite;Game Ridge Trachyte
StructureRosita Volcanic Center, Wet Mtns., Rosita Fault
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationStrongly Argillized
Economic & production
Development statusPast Producer
Discovery year1874
Identification
Deposit ID10087599
MRDS IDD008061
Alternate namesMayde Shaft
RegionNA
Data scoreB
Coordinates38.10584, -105.33668
References
CROSS, WHITMAN, 1896, GEOLOGY OF SILVER CLIFF AND THE ROSITA HILLS, COLORADO: USGS 17TH ANN. REPORT, PT 2, P. 263-403.EMMONS, S.F., 1896, THE MINES OF CUSTER COUNTY, COLORADO: USGS 17TH ANN. REPORT, PT 2, P. 405-472.SHARP, W.N., 1978, GEOLOGIC MAP OF THE SILVER CLIFF AND ROSITA VOLCANIC CENTERS, CUSTER COUNTY, COLORADO: USGS MAP I-1081, 1:24,000