Chance

The Chance is a silver and gold 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: Chance

Commodity

Primary: Silver
Primary: Gold
Secondary: Lead
Secondary: Copper
Secondary: Mercury

Location

State: Alaska
District: Alaska Peninsula

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

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

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Alteration Text: The alteration consists of silicification.

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Gold
Ore: Pyrite
Gangue: Quartz

Comments

Comment (Deposit): Model Name = Epithermal gold veins

Comment (Deposit): Other Comments = This site is located on land patented by, or interim-conveyed to, the Aleut Corporation.

Comment (Exploration): Status = Inactive

Comment (Geology): Age = Eocene or younger.

Comment (Reference): Primary Reference = Peterson and others, 1982

Comment (Geology): Geologic Description = The Chance prospect consists of several quartz veins in an area of silicified and iron-oxide-rich andesite of the the late Eocene to early Oligocene Popof volcanic rocks (Wilson and others, 1995). The prospect occurs at the intersection of northeast-and northwest-striking faults. Trenching exposed 32 feet of massive quartz. Channel samples contained as much as 0.94 ppm gold, 1.9 ppm silver, 45 ppm copper, 755 ppm lead, 69 ppm zinc, 280 ppm arsenic, and 0.35 ppm mercury. Grab samples contained as much as 0.95 ppm gold, 26 ppm silver, 975 ppm copper, 9,600 ppm lead, 720 ppm zinc, 260 ppm lead, and 3.5 ppm mercury (Peterson and others, 1982).

Comment (Workings): Workings / Exploration = UNC Teton Exploration Drilling Company sampled and trenched this prospect in 1982. Grab samples contained as much as 0.95 ppm gold, 1.9 ppm silver, 79 ppm copper, 995 ppm lead, 720 ppm zinc, 260 ppm arsenic, and 1.2 ppm mercury.

References

Reference (Deposit): Peterson, R.J., Lemmers, J., Handverger, P., Gallagher, J., Pilcher, R., East, J., Macleod, T., Bartels. E., 1982, Geology and precious metals potential Unga, Popof, and Korovin Islands, Shumagin Group, Aleutian Chain, Alaska: UNC Teton Exploration Drilling Company report, 127 p., 5 map sheets, various scales. (Report held by the Aleut Corporation, Anchorage, Alaska.)

Reference (Deposit): Wilson, F.H., White, W.H., and DuBois, G.D., 1988, Brief descriptions of mines, prospects, and mineral occurrences in the Port Moller and Stepovak Bay quadrangles, Alaska Peninsula: U.S. Geological Survey Open-File Report 88-666, 128 p., scale 1:250,000.

Reference (Deposit): Wilson, F.H., Detterman, R.L., Miller, J. W., and Case, J.E., 1995, Geologic map of the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska: U.S. Geological Survey Miscellaneous Investigation Series Map I-2272, 1 map sheet, scale 1:250,000.

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