Commodities
PrimaryIron
TertiaryGold, Silver, Copper
Commodity typeM
Deposit
Deposit typeReplacement
Model72: Polymetallic replacement
Deposit sizeS
Ore controlFavorability Of Limestone For Replacement
Materials
Ore mineralsChalcopyrite, Magnetite
GangueMalachite
Geology
Host rockLimestone · Hermosa Formation
Associated rockMonzonite,Latite · Augite Monzonite;Hornblende Latite Porphyry
StructureSan Juan Uplift, Paradox Basin, Rico Dome
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationOxidation Of Cu Sulfide To Carbonate
Economic & production
Development statusPast Producer
First production1875
Last production1900
Identification
Deposit ID10014131
MRDS IDD010777
RegionNA
Data scoreB
Coordinates37.70751, -108.05315
References
HARRER, C.M., AND TESCH, W.J., JR., 1959, RECONNAISSANCE OF IRON OCCURRENCES IN COLORADO: USBM IC-7918, P. 27.CROSS, WHITMAN, AND RANSOME, F.L., 1909, DESCRIPTION OF THE RICO QUADRANGLE: USGS FOLIO 130, P. 15.PRATT, W.P., AND OTHERS, 1969, GEOLOGIC MAP OF THE RICO QUADRANGLE, DOLORES AND MONTEZUMA COUNTIES, COLORADO: USGS MAP GQ-797.RANSOME, F.L., 1901, THE ORE DEPOSITS OF THE RICO MOUNTAINS, COLORADO: USGS 22D ANN. REPT., PT. 2, P. 356.