Commodities
PrimaryCopper
TertiaryZinc
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Ore controlCa-Rich Metamorphosed Diabase Near Edge Of Pluton
Materials
Ore mineralsChalcopyrite, Pyrite
GangueApatite, Hematite, Labradorite, Limonite, Magnetite, Malachite, Siderite
Geology
Host rockSchist · Idaho Springs Formation-Hornblende Gneiss And Amphibolite
Associated rockQuartz Monzonite,Pegmatite · Pegmatite;Silver Plume Quartz Monzonite
StructureFront Range Uplift, Denver Basin, Floyd Hill Fault Zone, Bear Creek Shear Zone, Yankee Creek Pluton
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationFe Oxidation
Economic & production
Development statusPast Producer
Identification
Deposit ID10013752
MRDS IDD010213
Alternate namesFMD Mine
RegionNA
Data scoreB
Coordinates39.68072, -105.2882
References
LINDGREN, WALDEMAR, 1908, NOTES ON COPPER DEPOSITS IN CHAFFEE, FREMONT, AND JEFFERSON COUNTIES, COLO.: USGS BULL. 340, P. 157-174SHERIDAN, D.M., AND OTHERS, 1972, GEOLOGIC MAP OF THE EVERGREEN QUADRANGLE, JEFFERSON COUNTY, COLORADO: USGS MAP I-786-ALOVERING, T.S., AND GODDARD, E.N., 1950, GEOLOGY AND ORE DEPOSITS OF THE FRONT RANGE, COLORADO: USGS PROF. PAPER 223, P. 67-68.