Silver Bell Mine, Wauconda Mining District, Okanogan County, Washington, USAi

Regional Level Types
Silver Bell Mine	Mine
Wauconda Mining District	Mining District
Okanogan County	County
Washington	State
USA	Country

A gold-silver mine approximately 30' from the Okanogan-Ferry County border. It was developed by a 340' adit and a pit. A small amount of ore was produced from a pit.
Structure: East-West Extension During The Eocene Resulted In Formation Of The Torada Creek Graben And Other Structures In Which A Thick Section Of Volcanic And Sedimentary Materials Was Deposited And Preserved (Holder And Others, 1989).

Deposit: Underground workings consist of two adits, a 50-ft shaft, and several shallow shafts. Moen (1980, p. 70) reported that drilling done by the owner of the property in 1978 dilineated 124,000 tons of rock having an average value of 5.46 oz/ton Ag and 0.014 oz/ton au. Moen (1980, p. 69) also reported assays on the siliceous breccia that range from 0-30 oz/ton ag; As much As 120 ft of breccia assayed 3.0 oz/ton Ag and, a 13-ft section assayed As much As 26.55 oz/ton ag. ; info.src : 1 pub lit

Geology: Geologic setting is similar to that at the american flag mine where volcanic rocks in this part of the toroda creek graben plot As rhyolite on a tas diagram, but contain sparse plagioclase and mafic phenocrysts in an aphanitic groundmass that contains abundant plagioclase microlites. Plagioclase phenocrysts are commonly strongly sericitized, and mafic minerals are generally replaced by some combination of chlorite, calcite, epidote, and sphene; shapes of altered mafic minerals suggest that they were originally pyroxene. The presence of silica stringers and veinlets in some of these rocks suggest that silica was introduced during alteration (stoffel, 1990, p. 11).

Rock formation(s): Klondike Mountain Formation


Ore(s): The Deposit Is Contained In Brecciated And Silicified Trachyte. The Breccia Has A General Northeast Strike And Dips About 45w. The Breccia Is About 50-75 Ft Wide And Is Cemented With Quartz, Sanidine, And As Much As 4% Fluorite. The Deposit Is Near The Center Of The Zalla-M American Flag Mineralized Belt, Which Is Almost A Mile Long And Several Hundred Feet Wide (Moen, 1980, P. 69).

Other Databases

Link to USGS MRDS:	10056033

Other Regions, Features and Areas containing this locality

References