Commodities
PrimaryGold, Silver
TertiaryCopper, Zinc, Lead
Commodity typeM
Deposit
Deposit sizeS
Ore controlFolded Metamorphosed Chert Layer; Calcite Alteration Of Mafic Volcanics
Materials
Ore mineralsChalcopyrite, Galena, Pyrite, Sphalerite
GangueActinolite, Calcite, Epidote, Magnetite, Malachite, Quartz
Geology
Host rockQuartzite,Schist,Amphibolite · Dubois Greenstone--Hornblende Schist And Amphibolite;Dubois Greenstone--Quartzite
Associated rockGabbro,Trachyte,Basalt · Basalt, Gabbro;Trachyte
StructureGunnison Uplift, San Juan Volcanic Field, Gunnison Gold Belt, Iron Hill Alkalic Complex, Tolvar Peak Stock, Unnamed Synform, Unnamed Fault
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationAlteration Of Mafic Volcanics To Calcite And Epidote
Economic & production
Development statusPast Producer
Identification
Deposit ID10014414
MRDS IDD011168
Alternate namesPatented Claims: Iron Cap, MS 8973, Iron Band, MS 8973
RegionNA
Data scoreB
Coordinates38.34556, -107.08674
References
HEDLUND, D.C., AND OLSON, J.C., 1975, GEOLOGIC MAP OF THE POWDERHORN QUADRANGLE, GUNNISON AND SAGUACHE COUNTIES, COLORADO: USGS MAP GQ-1178.SHERIDAN, D.M., AND OTHERS, 1981, PRECAMBRIAN SULFIDE DEPOSITS IN THE GUNNISON REGION, COLORADO, IN EPIS, R.C., AND CALLENDER, J.F., EDS., WESTERN SLOPE COLORADO: NEW MEXICO GEOL. SOC. 32D FIELD CONF. GUIDEBOOK, P. 273-277.NELSON, C.J., AND RIESMEYER, W.D., 1983, GEOLOGY OF THE ANACONDA-GUNNISON MINE AREA, GUNNISON COUNTY, COLORADO, IN HANDFIELD, R.C., ED., GUNNISON GOLD BELT AND POWDERHORN CARBONATITE FIELD TRIP GUIDEBOOK: DREGS, P. 8-18.DROBECK, P.A., 1981, PROTEROZOIC SYNGENETIC MASSIVE SULFIDE DEPOSITS IN THE GUNNISON GOLD BELT, COLORADO, IN EPIS, R.C., AND CALLENDER, J.F., EDS., WESTERN SLOPE COLORADO: NEW MEXICO GEOL. SOC. 32D FIELD CONF. GUIDEBOOK, P. 279-286.NELSON, A.P., (NO DATE), MINING DISTRICTS, PRODUCING MINES AND PROSPECTIVE PROPERTIES (OF GUNNISON COUNTY): COLORADO STATE PLAN. COMM. UNPUB. REPT., P. 5-6.BLM MINERAL SURVEY MS 8973