Mine detail: Ben Franklin Prospect

Previously called ''

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Location

Lat / long: 38.12307, -105.34307

Resource(M)

Primary: Silver
Ore: Galena, Sphalerite
Gangue: Pyrite, Quartz
Discovery year: 1882

Production

Operation type: Underground
Production size: None
Development status: Prospect

Geology

Host type:Trachyandesite
Associated rock:Bunker Trachyandesite;Trachyte Of Game Ridge
Associated type:Trachyandesite
Structure:Rosita Caldera And Cauldron, Trachyte Dike; Along Area Of Caldera Subsidence
Tectonic:Wet Mountains
Alteration processes:Strong Argillization, With Outcrops Of Comparatively Fresh Rock

References

MRDSD007639
DEP10012172
Reference{Deposit:: CROSS, WHITMAN, 1896, GEOLOGY OF SILVER CLIFF AND THE ROSITA HILLS, COLORADO: USGS 17TH ANN. REPORT, PT 2, P. 263-403.}{Deposit:: EMMONS, S.F., 1896, THE MINES OF CUSTER COUNTY, COLORADO: USGS 17TH ANN. REPORT, PT 2, P. 405-472.}{Deposit:: SHARP, W.M., 1978, GEOLOGIC MAP OF THE SILVER CLIFF AND ROSITA VOLCANIC CENTERS, CUSTER COUNTY, COLORADO: USGS MAPS I-1081.}
ReporterCollins, Donna B.