Commodities
PrimaryIron
TertiaryGold, Silver, Copper
Commodity typeM
Deposit
Deposit sizeS
WorkingsSurface/Underground
Orebody formBLANKET
Ore control"Contact Between Metamorphic Rocks And Andesite Flows"
Materials
GangueJasper, Pyrite, Quartz
Geology
Host rockMarble,Greenstone,Andesite · Martin Bridge Formation-Marble, Tactite
Associated rockDiorite,Greenstone,Andesite · Seven Devils Group-Greenstone;Granodiorite Or Granite;Andesite;Mio-Plio
Structure"High-Angle Faulting And Westward Tilting Of The Fault Blocks.", "Unconformity Between The Andesite Flows And The Greenstone And Marble Formations."
Tectonic setting"Geosynclinal Folding; Island Arc"
Alteration"Secondary Copper Enrichment In The Sulfides."
Economic & production
Development statusPast Producer
First production1918
Discovery year1895
Identification
Deposit ID10070222
MRDS IDW012976
RegionNA
Data scoreB
Coordinates44.56656, -117.016
References
{Deposit:: BELL, R. N., 1919, TWENTIETH ANNUAL REPORT OF THE MINING INDUSTRY OF IDAHO FOR THE YEAR 1918, P. 108.}{Deposit:: MACKIN, J. H., 1953, IRON ORE DEPOSITS OF THE IRON MOUNTAIN DISTRICT: USGS BULL. 982-E, P. 146.}{Deposit:: MACKIN, J.H., 1947, IRON ORE DEPOSITS OF THE IRON MOUNTAIN DISTRICT, WASHINGTON COUNTY, IDAHO: USGS OPEN-FILE REPT., 23 P.}{Deposit:: 1919 COMPILE 20TH ANN. REPT MINING INDUSTRY}{Deposit:: 1947 RECON MACKIN, J.H., OPEN-FILE REPT.}{Deposit:: 1953 GEOLMAP MACKIN, J.H., BULL. 982-E, P. 124,126,135,137,146-148; PL. 17.}