Old Glory (upper workings)

The Old Glory (upper workings) 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: Old Glory (upper workings)
Secondary: American Eagle

Commodity

Primary: Gold

Location

State: Alaska
District: Ketchikan

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

Alteration Type: L
Alteration Text: The wallrocks adjacent to some of the veins are bleached and pyritic.

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Pyrite
Ore: Gold
Gangue: Quartz

Comments

Comment (Geology): Geologic Description = The country rocks near this site are andesitic and basaltic metavolcanic rocks that gradationally intertongue with subordinate flyschlike metasedimentary rocks (Berg and others, 1988, p. 17-19). The strata were regionally metamorphosed to greenschist-grade phyllite and semischist in Late Cretaceous time (Brew, 1996, p. 27). Their premetamorphic age is uncertain. Berg and others (1988, p. 17) state that they closely resemble Upper Jurassic to mid-Cretaceous marine flysch and volcanic rocks nearby on Gravina Island.? the following description is based mainly on examinations of the upper Old Glory and American Eagle deposits by Maas and others (1995). The deposits at the Old Glory (upper workings) and American Eagle properties consist of quartz fissure veins and stringer lodes in massive to schistose metavolcanic rocks (greenstone) and interbedded chlorite schist (Maas and others, 1995, p. 183-184 and fig. 46). The veins contain pyrite and free gold and the schistose wallrocks adjacent to some of the veins are bleached and pyritized. The upper Old Glory workings date to the early 1900s and consist of 3 adits of unknown length; the American Eagle deposit was explored at that time by a 336-foot adit (Maas and others, table 26). Brooks (1902, p. 57) reported that a two-stamp mill was under construction at the time of his visit. Gold production, if any, from the upper Old Glory probably is included in the cumulative production figures for the Old Glory mine given by Maas and others (1995, table 26) (see KC033).? Maas and others (table 25) report the following average metal contents in their samples from the upper Old Glory lode: 4.32 ppm Au, 0.35 ppm Ag, 128 ppm Cu, 120 ppm Pb, and 67 ppm Zn. Samples from the American Eagle lode contain: 1.86 ppm Au, 0.12 ppm Ag, 157 ppm Cu, 11.2 ppm, Pb, and 71 ppm Zn.? Fluid inclusion studies of quartz vein material from several of the Helm Bay lodes suggest that the veins formed at temperatures and pressures consistent with conditions during the Late Cretaceous greenschist-grade regional metamorphism (Maas and others, 1995, p. 184).

Comment (Production): Production Notes = Gold production, if any, from the upper Old Glory probably is included in the cumulative production figures for the Old Glory mine given by Maas and others (1995, table 26) (see KC033).

Comment (Geology): Age = Late Cretaceous.

Comment (Deposit): Other Comments = This description is based mainly on examinations of the upper Old Glory and American Eagle deposits by the U.S. Bureau of Mines in the early 1990s (Maas and others, 1995). Earlier reports include those by Brooks (1902), Wright and Wright (1908), and Smith (1914). Their reports, in turn, were summarized by Elliott and others (1978) and Cobb and Elliott (1980).

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

Comment (Reference): Primary Reference = Maas and others, 1995

Comment (Workings): Workings / Exploration = The upper Old Glory workings date to the early 1900s and consist of three adits of unknown length; the American Eagle deposit was explored at that time by a 336-foot adit (Maas and others, table 26). Brooks (1902, p. 57) reported that a two-stamp mill was under construction at the time of his visit. ? Maas and others (table 25) report the following average metal contents in their samples from the upper Old Glory lode: 4.32 ppm Au, 0.35 ppm Ag, 128 ppm Cu, 120 ppm Pb, and 67 ppm Zn. Samples from the American Eagle lode contain: 1.86 ppm Au, 0.12 ppm Ag, 157 ppm Cu, 11.2 ppm, Pb, and 71 ppm Zn.

References

Reference (Deposit): Berg, H.C., Elliott, R.L., and Koch, R.D., 1988, Geologic map of the Ketchikan and Prince Rupert quadrangles, southeastern Alaska: U.S. Geological Survey Mineral Investigations Series Map MF-1807,27 p., scale 1:250,000.

Reference (Deposit): Maas, K.M., Bittenbender, P E., and Still, J.C., 1995, Mineral investigations in the Ketchikan mining district, southeastern Alaska: U.S. Bureau of Mines Open-File Report 11-95, 606 p.

Reference (Deposit): Cobb, E.H., and Elliott, R.L., 1980, Summaries of data on and lists of references to metallic and selected nonmetallic mineral deposits in the Ketchikan and Prince Rupert quadrangles, Alaska: U.S. Geological Survey Open-File Report 80-1053, 154 p.

Reference (Deposit): Smith, P.S., 1914, Lode mining in the Ketchikan region: U.S. Geological Survey Bulletin 592, p. 75-94.

Reference (Deposit): Elliott, R.L., Berg, H.C., and Karl, Susan, 1978, map and table describing metalliferous and selected nonmetalliferous mineral deposits, Ketchikan and Prince Rupert quadrangles, Alaska: U.S. Geological Survey Open-file Report, 78-73-B,17 p., scale 1:250,000.

Reference (Deposit): Brooks, A.H., 1902, Preliminary report on the Ketchikan mining district, Alaska, with an introductory sketch of the geology of southeastern Alaska: U.S. Geological Survey Professional Paper 1, 120 p.

Reference (Deposit): Wright, F.E., and Wright, C.W., 1908, The Ketchikan and Wrangell mining districts, Alaska: U.S. Geological Survey Bulletin 347, 210 p.

Reference (Deposit): Brew, D.A., 1996, Geologic map of the Craig, Dixon Entrance, and parts of the Ketchikan and Prince Rupert quadrangles, southeastern Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-2319, 53 p., 1 sheet, scale 1:250,000.

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