Commodities
PrimaryManganese
SecondaryIron
Commodity typeM
Deposit
Deposit sizeN
Ore controlStratigraphically Above Main Sill Of Granodiorite; Fractures
Materials
Ore mineralsLimonite, Pyrolusite, Siderite
Geology
Host rockLimestone · Leadville Limestone
Associated rockDiorite · Granodiorite (Calumet Granodiorite)
StructureSouthern Mosquito Range, N-S-Trending Fault, Pleasant Valley Syncline
Tectonic settingCentral Cordillera (Southern Rocky Mountains)
AlterationOxidation
Economic & production
Development statusOccurrence
Discovery year1933
Identification
Deposit ID10013944
MRDS IDD010516
RegionNA
Data scoreB
Coordinates38.6175, -105.9467
References
OSBORN, E.F. AND RAINWATER, E.H., 1934, GEOLOGY OF THE CALUMET, COL ORADO MINING DISTRICT: ILLINOIS NORTHWESTERN UNIVERSITY UNPUBLISHED MA STER OF ARTS THESIS, P. 132-133SCOTT, G.R., TAYLOR, R.B., EPIS, R.C. AND WOBUS, R.A., 1978, GEOLOG IC MAP OF THE PUEBLO 10 X 20 QUADRANGLE, SOUTH-CENTRAL COLORADO: USGS MAP I-1022 1:250,000BEHRE, C.H., JR., OSBORN, E.F., RAINWATER, E.H., 1936, CONTACT ORE DEPOSITION AT THE CALUMET IRON MINE, COLORADO: ECONOMIC GEOLOGY, V. 31 , NO. 8, P. 804.