Brumfield

The Brumfield is a 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: Brumfield

Commodity

Primary: Gold

Location

State: Alaska
District: Fairbanks

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

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Gold

Comments

Comment (Exploration): Status = Inactive

Comment (Reference): Primary Reference = Saunders, 1963

Comment (Workings): Workings / Exploration = Saunders (1963) reported that placer mining was done using a small crawler-type tractor for stripping moss and one or two feet of overburden. The remaining two to four feet of gravel was shoveled by hand into a 6-inch sluice box.

Comment (Deposit): Model Name = Residual placer on a decomposed, quartz-veined granite porphyry(?)

Comment (Production): Production Notes = The production data are not available.

Comment (Geology): Geologic Description = Hill (1933) shows a granite porphyry extending along the ridge south of Gilmore Creek from the head of Engineer Creek to the head of Pearl Creek, a distance of about 7 miles. All of the bedrock exposed by placer mining is part of this intrusion (Saunders, 1963). Gold is found throughout the granitic bedrock and also occurs in narrow quartz veinlets that carry visible free gold (Saunders, 1963). Saunders (1963) reported that placer mining was done using a small crawler-type tractor for stripping moss and one or two feet of overburden. The remaining two to four feet of gravel was shoveled by hand into a 6-inch sluice box. The descriptions are somewhat unclear, but this may be a residual placer on a decomposed, quartz-veined granite.

References

Reference (Deposit): Saunders, R.H., 1963, Examination of a gold prospect on Nugget Creek: Alaska Territorial Department of Mines Prospect Evaluation 58-14, 2 p.

Reference (Deposit): Hill, J.M., 1933, Lode deposits of the Fairbanks district, Alaska: U.S. Geological Survey Bulletin 849-B, p. 29-163.

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