Commodities
PrimarySilver, Lead
SecondaryCopper, Gold
TertiaryZinc, Antimony
Commodity typeM
Deposit
Deposit typeVein
Deposit sizeS
Materials
Ore mineralsAnglesite, Chalcocite, Chalcopyrite, Covellite, Sphalerite
GangueBarite, Quartz
Geology
Host rockRhyolite
Associated rockMonzonite,Rhyolite · Eureka Member Of Sapinero Mesa Tuff;Intrusive Rocks--Monzonite Porphyry
StructureSan Juan Volcanic Field, San Juan Depression, San Juan-Uncompahgre Calderas, Lake City Caldera
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationOxidation Of Pyrite To Hematite; Oxidation Of Galena To Anglesite
Economic & production
Development statusPast Producer
Identification
Deposit ID10087978
MRDS IDD011616
Alternate namesMoro Mill Site, Moro Tunnel Site, Moro-Ajax Mine, Patented Claims: Moro Limited, MS 13811, Ajax Limited, MS 13811, Unpatented Claims: Ajax No.2, Moro Extension
RegionNA
Data scoreB
Coordinates37.99889, -107.48535
References
IRVING, J.D., AND BANCROFT, HOWLAND, 1911, GEOLOGY AND ORE DEPOSITS NEAR LAKE CITY, COLORADO: USGS BULL. 478, P. 116-122.LIPMAN, P.W., 1976, GEOLOGIC MAP OF THE LAKE CITY CALDERA AREA, WESTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-962.SLACK, J.F., 1980, MULTISTAGE VEIN ORES OF THE LAKE CITY DISTRICT, WESTERN SAN JUAN MOUNTAINS, COLORADO: ECON. GEOLOGY, V.75, NO. 7, P.963-991.COLORADO DIV. MINES INF. REPT.BLM MINERAL SURVEY MS 13811