Commodities
TertiaryCopper, Iron
Commodity typeM
Deposit
Deposit sizeN
WorkingsUnderground
Orebody formLENS, TABULAR , BLANKET
Ore controlContact Of Marble And Andesite
Materials
Ore mineralsChalcopyrite, Hematite, Magnetite
GangueGarnet, Limonite, Pyrite, Quartz
Geology
Host rockGreenstone · Martin Bridge Formation-Marble
Associated rockDiorite,Greenstone,Andesite · Andesite Flows;Granite Or Granodiorite;Perm-Tri
StructureHigh - Angle Faulting With Westward Tilting Of The Fault Blocks.
Tectonic settingIsland Arc
AlterationCavities In Magnetite Due To Leaching Of Sulfides.
Economic & production
Development statusOccurrence
Discovery year1897
Identification
Deposit ID10090085
MRDS IDW012999
RegionNA
Data scoreC
Coordinates44.55706, -117.0174
References
BELL, R. N., 1918, NINETEENTH ANNUAL REPORT OF THE MINING INDUSTRY OF IDAHO FOR THE YEAR 1917, P. 98.MACKIN, J. H., 1953, IRON ORE DEPOSITS OF THE IRON MTN. DISTRICT, IDAHO: U.S. GEOLOGICAL SURVEY BULL. 982 - E, 30 P.MACKIN, J.H., 1947 , IRON ORE DEPOSITS OF THE IRON MOUNTAIN DISTRICT, WASHINGTON COUNTY, IDAHO: USGS OPEN-FILE REPT., 23 P.1918 COMPILE 19TH ANN. REPT. OF THE MINING INDUSTRY FOR 19171947 RECON MACKIN, J.H., OPEN-FILE REPT.1953 GEOLMAP MACKIN, J.H., BULL. 982-E