Commodities
PrimaryLead, Silver
SecondaryZinc, Copper
TertiaryGold
Commodity typeM
Deposit
Deposit typeHYDROTHERMAL VEIN AND REPLACEMENT
Deposit sizeM
WorkingsUnderground
Orebody formTABULAR
Ore control"Fault zone which strikes N45W and dips 38SW", "Orebodies within Revett Formation which consists of 50 percent massive quartzite, interlayered with thin-bedded sericitic quartztie, siltite, and argillite."
Materials
Ore mineralsGalena, Sphalerite, Tetrahedrite, Chalcopyrite
GangueQuartz, Siderite, Pyrite
Geology
Host rockQuartzite · "St. Regis Formation", "Revett Formation"
Structure"The Cate Fault (strikes NW to N, dips 55SW) is the main shear in the deposit with several branch shears, the Dull Fault being the most important. The Cate Fault and its branch shears are connected by "Link" faults which trend NE.", "Deposit is within the NE limb of a WNW-striking anticline. Host sediments strike N60-80W and dip SW. The axial plane of the anticline strikes N16W dips 42W and the axis plunges 34 degrees to N60W."
Tectonic setting"Belt Basin"
Alteration"The Last Chance orebodies were largely oxidized, with cerussite the principal ore mineral."
Economic & production
Development statusPast Producer
Production years1888-1918
First production1888
Last production1918
Discovery year1885
Identification
Deposit ID10107338
MRDS IDW019519
Alternate namesWardner Mine, Sweeney Mine
RegionNA
Data scoreB
Coordinates47.54417, -116.16713
References
{Deposit:: UMPLEBY, J. B., AND JONES, E. L., JR., 1923 , GEOLOGY AND ORE DEPOSITS OF SHOSHONE COUNTY, IDAHO: USGS BULL. 732 , 156 P.}{Deposit:: RANSOME, F. L., AND CALKINS, F.C., 1908 , THE GEOLOGY AND ORE DEPOSITS OF THE COEUR D' ALENE DISTRICT, IDAHO: USGS PROF. PAPER 62 , 203 P.}{Deposit:: RANSOME, F. L., 1905 , ORE DEPOSITS OF THE COEUR D' ALENE DISTRICT, IDAHO: USGS BULL. 260 , P. 274 - 303}{Deposit:: Hobbs, S. W., And Others, 1965 , Geology Of The Coeur D'Alene District, Shoshone County, Idaho: USGS Prof. Paper 478 , 139 P.}{Production:: Mitchell, V.E., and Bennett, E.H., 1983, Production statistics for the Coeur d'Alene mining district, Shoshone County, Idaho, 1884-1980: Idaho Geological Survey Technical Report 83-3, 33 p.}{Production:: Long, Keith R., 1998, Grade and tonnage models for Coeur d'Alene-type polymetallic veins: U.S. Geological Survey Open-File Report 98-583, 28 p.}