Perseverance

The Perseverance is a lead and silver mine located in Alaska.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

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Site Name

Primary: Perseverance
Secondary: Valley
Secondary: Bishop Creek

Commodity

Primary: Lead
Primary: Silver
Secondary: Zinc
Secondary: Copper

Location

State: Alaska
District: Kaiyuh

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant:

Physiography

Not available

Mineral Deposit Model

Model Name: Polymetallic veins

Orebody

Not available

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Local iron-oxide alteration (gossan).

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Tetrahedrite
Ore: Silver
Ore: Galena
Gangue: Quartz

Comments

Comment (Reference): Primary Reference = Brooks, 1923

Comment (Workings): Workings / Exploration = The Perseverance deposit was discovered in 1918 (Brooks, 1923), and underground mining took place between 1921 and 1923 (Cass, 1959).

Comment (Deposit): Model Name = Polymetallic (Pb-Zn) vein (Cox and Singer, 1986; model 22c)

Comment (Geology): Geologic Description = The country rocks in the vicinity of the Perseverance mine are quartzose, micaceous, and chloritic schist and limestone (Brooks, 1923). The chloritic schist is light green and locally contains fuchsite (Flanigan, 1998). The mineralization occurs as poddy, massive, coarse-grained, argentiferous galena and tetrahedrite in quartz veins (Flanigan, 1998). These quartz veins are parallel to schist foliation, strike northeast, and range up to 1 meter thick (Berg and Cobb, 1967; Flanigan, 1998).? Underground workings and mineralized outcrops at the deposit are no longer exposed, but fresh sulfides, gossan, and wallrock remain in the dump. Two assays of galena and tetrahedrite samples from the dump contain up to 90.4 ounces of silver per ton, 71.71% lead, 0.20% zinc, 1.28% copper, and 10,000 ppm antimony (Flanigan, 1998).? Small-scale mining took place at the Perseverance mine between 1921 and 1923. Production was about 275 tons of ore grading 73% lead and 104 ounces of silver per ton (Brooks and Capps, 1924; Mertie, 1937; Berg and Cobb, 1967). Small scale mining of lead and silver also took place at the nearby Valley mine at that time, and shipments from the two mines were probably combined (Mertie, 1937; Cass, 1959).

Comment (Exploration): Status = Inactive

Comment (Commodity): Ore Material = Argentiferous galena

Comment (Production): Production Notes = The Perseverance mine produced about 275 tons of ore that contained 73% lead and 104 ounces of silver per ton (Brooks and Capps, 1924; Mertie, 1937; Berg and Cobb, 1967). Small scale mining of lead and silver also took place at the nearby Valley mine at that time, and shipments from the two mines were probably combined (Mertie, 1937; Cass, 1959).

References

Reference (Deposit): Flanigan, B., 1998, Genesis and mineralization of ore deposits in the Illinois Creek region, West Central Alaska: University of Alaska, Fairbanks, M.Sc. thesis, 125 p., 2 plates.

Reference (Deposit): Cass, J.T., 1959, Reconnaissance geologic map of the Nulato quadrangle, Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map I-291, 1 sheet, scale 1:250,000.

Reference (Deposit): Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Candle, Holy Cross, Norton Bay, Nulato, and Unalakleet quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-866, 102 p.

Reference (Deposit): Brooks, A.H., 1923, The Alaska mining industry in 1921: U.S. Geological Survey Bulletin 739, p. 1-50.

Reference (Deposit): Mertie, J.B., Jr., 1937, The Kaiyuh Hills, Alaska: U.S. Geological Survey Bulletin 868-D, p. 145-177.

Reference (Deposit): Berg, H.C., and Cobb, E.H., 1967, Metalliferous Lode Deposits of Alaska. U.S. Geological Survey Bulletin 1246, 254 p.

Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Nulato quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-423, 1 sheet, scale 1:250,000.

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