Commodities
PrimaryNiobium (Columbium)
SecondaryREE
TertiaryTitanium, Metal, Iron, Manganese, Thorium, Zinc, Phosphorus-Phosphates
Commodity typeB
Deposit
Deposit sizeN
WorkingsUnderground
Materials
Ore mineralsPyrochlore
GangueAnatase, Apatite, Barite, Bastnaesite, Biotite, Calcite, Fluorite, Ilmenite, Magnetite, Monazite, Phlogopite, Pyrite, Rutile, Sphene, Synchisite, Zircon
Geology
Host rockIntrusive Carbonatite
Associated rockIntrusive Carbonatite · Carbonatite
StructureGunnison Uplift, San Juan Volcanic Field, Iron Hill Alkalic Complex, Cimarron Fault, Powderhorn Stock
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationOxidation Of Pyrite To Hematite And Goethite; Oxidation Of Rhodochrosite(?) To Mn Oxides
Economic & production
Development statusProspect
Discovery year1956
Identification
Deposit ID10014564
MRDS IDD011389
RegionNA
Data scoreB
Coordinates38.25944, -107.06701
References
HEDLUND, D.C., AND OLSON, J.C., 1975, GEOLOGIC MAP OF THE POWDERHORN QUADRANGLE, GUNNISON AND SAGUACHE COUNTIES, COLORADO: USGS MAP GQ-1178.THOMPSON, J.V., 1983, ECONOMIC POTENTIAL OF THE CARBONATITE AND ALKALIC STOCK AT POWDERHORN, GUNNISON COUNTY, COLORADO, IN HANDFIELD, R.C., ED., GUNNISON GOLD BELT AND POWDERHORN CARBONATITE FIELD TRIP GUIDEBOOK: DREGS, P. 32-42.OLSON, J.C., AND HEDLUND, D.C., 1981, ALKALIC ROCKS AND RESOURCES OF THORIUM AND ASSOCIATED ELEMENTS IN THE POWDERHORN DISTRICT, GUNNISON COUNTY, COLORADO: USGS PROF. PAPER 1049-C.COLORADO DIV. MINES INF. REPTS.