Marvitz

The Marvitz 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: Marvitz
Secondary: Ibach

Commodity

Primary: Gold
Secondary: Lead
Secondary: Arsenic

Location

State: Alaska
District: Chichagof

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: Low-sulfide Au-quartz vein

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Gold
Ore: Pyrite
Ore: Galena
Ore: Arsenopyrite
Gangue: Quartz

Comments

Comment (Exploration): Status = Not determined

Comment (Geology): Age = Post Jurassic. Probably Cretaceous or younger emplaced in cross-cutting structures and dike-rocks of intermediate composition.

Comment (Commodity): Ore Material = Gold (native)

Comment (Reference): Primary Reference = Reed, 1938; Rossman, 1959 (B 1058-E)

Comment (Reserve-Resource): Reserves = No known reserves.

Comment (Workings): Workings / Exploration = A short adit was driven at 850 ft. elevation, a 50-ft.-long adit at 980 feet elevation, and a 210-ft.-long adit at about 1080 ft. elevation (Reed, 1938). Shallow pits or trenches are also reported. There may be small-scale workings on the placer deposits reported below the mine.

Comment (Deposit): Model Name = Low-sulfide gold-quartz vein (Cox and Singer, 1986; model 36a).

Comment (Deposit): Other Comments = the Vein Mountain area was proposed by Rossman (1959, B 1058-E) to be part of a gold-favorable metamorphic belt that extends from the Chichagof mines north-northwest through the Apex-El Nido area to Vein Mountain. Rossman proposes a very favorable gold prospecting area exists that is centered near the southwest ridge of Vein Mountain (about 58.11 and 136.42). The beach adjacent to the creek draining the mineralized area (location about 58.122, 137.424) is reported to be auriferous. The area appears to be on U.S. Forest Land available under the Mining Law. It is outside of Glacier Bay National Park and Preserve.

Comment (Geology): Geologic Description = Northwest Chichagof Island is underlain mainly by schist, slate, and greenstone of Triassic or Jurassic age (Rossman, 1959, B 1058-E; Loney and others, 1975). Near the Marvitz mine, schist and slate strike north-northwest and dip steeply northeast; northeast cross joints are steep. The cross (northeast ) structures are filled with lenticular quartz veins as much as 5 feet thick and with quartz andesite dikes as much as 4 feet thick. The veins are closely spaced in quartz-sericite schist and slate, and locally contain gold (native), pyrite, arsenopyrite, and galena. A quartz andesite dike at 1500-foot elevation contains pyrite, arsenopyrite and is reported to contain gold (Reed, 1938, p. 75-76; Rossman, 1959, p. 211). Another gold vein was reported to exist about 1/4 mile east of Column Point, but it was not found by Rossman. The creek draining the mine area, and the beach where the creek enters Cross Sound are reported to contain gold-bearing placer deposits. Rossman also suggests that there may be gold-bearing veins on the hill slopes below hill 1658 (elevation of point) about 1/4 mile west of the Marvitz mine.

Comment (Production): Production Notes = Less than 100 ounces of gold.

References

Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Mount Fairweather quadrangle, AK: U.S. Geological Survey Miscellaneous Field Study Map MF-436, 1 sheet, scale 1:250,000.

Reference (Deposit): Reed, J.C., 1938, Some mineral deposits of Glacier Bay and vicinity, Alaska: Economic Geology, v. 33, p. 52-80.

Reference (Deposit): Loney, R.A., Brew, D.A., Muffler, L.J. B., and Pomeroy, J.S., 1975, Reconnaissance geology of Chichagof, Baranof, and Kruzof Islands, southeastern Alaska: U.S. Geological Survey Professional Paper 792, 105 p.

Reference (Deposit): Rossman, Darwin, 1959, Geology and ore deposits of the northwestern part of Chichagof Island, Alaska: U.S. Geological Survey Bulletin 1058-E, p. 139-216.

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