Commodities
PrimaryThorium
SecondaryREE
TertiaryNiobium (Columbium), Copper, Zinc, Lead
Commodity typeM
Deposit
Deposit sizeN
Ore controlNe-Trending Carbonatites Concordant To Foliation In Granite
Materials
Ore mineralsMonazite, Thorite
GangueApatite, Barite, Bastnaesite, Biotite, Calcite, Chalcopyrite, Fluorite, Galena, Parisite, Phlogopite, Pyrite, Pyrochlore, Siderite, Sphalerite
Geology
Host rockGranite
Associated rockIntrusive Carbonatite,Granite · Carbonatite;Powderhorn Granite
StructureGunnison Uplift, San Juan Volcanic Field, Iron Hill Alkalic Complex, Cimarron Fault, Powderhorn Stock
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationFenitization In Granite
Economic & production
Development statusOccurrence
Identification
Deposit ID10087971
MRDS IDD011402
RegionNA
Data scoreC
Coordinates38.23278, -107.02506
References
OLSON, J.C., 1974, GEOLOGIC MAP OF THE RUDOLPH HILL QUADRANGLE, GUNNISON, HINSDALE, AND SAGUACHE COUNTIES, COLORADO: USGS MAP GQ-1177.HEDLUND, D.C., AND OLSON, J.C., 1961, FOUR ENVIRONMENTS OF THORIUM-, NIOBIUM-, AND RARE-EARTH-BEARING MINERALS IN THE POWDERHORN DISTRICT OF SOUTHWESTERN COLORADO: USGS PROF. PAPER 424-B, P. B283-B286.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.