The Logan Beach 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
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Logan Beach MRDS details
Site Name
Primary: Logan Beach
Commodity
Primary: Gold
Secondary: Iron
Secondary: Molybdenum
Location
State: Alaska
District: Yakutat
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
Name: Gravel
Role: Host
Age Type: Host Rock
Age Young: Holocene
Analytical Data
Not available
Materials
Ore: Gold
Gangue: Garnet
Gangue: Magnetite
Comments
Comment (Reference): Primary Reference = Tarr and Butler, 1909.
Comment (Geology): Age = Holocene
Comment (Exploration): Status = Inactive
Comment (Commodity): Ore Material = Gold (native)
Comment (Deposit): Other Comments = the Logan beach placer is within the Russell Fiord Wilderness area of Tongass National Forest.
Comment (Deposit): Model Name = Beach placer
Comment (Production): Production Notes = The beach had a very limited production--a maximum of a few hundred ounces of gold.
Comment (Workings): Workings / Exploration = Surface workings, rockers and sluices. The occurrence is one of the first placers discovered in the Yakutat quadrangle (Tarr, 1906; Tarr and Butler, 1909).
Comment (Geology): Geologic Description = Logan beach is a wave-cut beach formed from gravelly terrace deposits of glacial material which form the bluffs behind the beach. The bedrock on the upland hills to the east of the deposit consists of graywacke and argillite of the Yakutat Group of Jurassic and Cretaceous age (MacKevett and Plafker, 1970). At the beach, gold occurred in thin transient deposits enriched in garnet or magnetite; the beach placer was derived by winnowing wave-action on weakly auriferous glacial gravels.? the placer could also contain reworked materials brought down from the Jura-Cretaceous bedrock. MacKevett and Plafker (1970, pl. 1) report anomalous amounts of molybdenum (3 to 10 ppm) in two stream sediment samples from the Logan Beach. Molybdenum is commonly enriched in organic shales as well as granitic rocks, but its source in the bedrock behind the Logan Beach is unknown.? Reimnitz and Plafker (1976, pl. I) reported 0.010 ppm gold in one sample from the beach.
References
Reference (Deposit): Reimnitz, Erk, and Plafker, George, 1976, Marine gold placers along the Gulf of Alaska margin: U.S. Geological Survey Bulletin 1415, 16 p.
Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Yakutat quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-408, 1 sheet, scale 1:250,000.
Reference (Deposit): Tarr, R.S., 1906, The Yakutat Bay region: U.S. Geological Survey Bulletin 284, p. 61-64.
Reference (Deposit): Tarr, R.S., and Butler, B.S., 1909, Area geology, in Tarr, R. S. and Butler, B. S, The Yakutat Bay region, Alaska: U.S. Geological Survey Professional Paper 64, p. 145-178.
Reference (Deposit): Brooks, A.H., 1918, Mineral resources of Alaska, 1916: U.S. Geological Survey Bulletin 662, 469 p.
Reference (Deposit): Thomas, B.I., and Berryhill, R. V., 1962, Reconnaissance studies of Alaskan beach sands, eastern Gulf of Alaska: U.S. Bureau of Mines Report of Investigations 5986, 40 p.
Reference (Deposit): MacKevett, E.M., Jr., and Plafker, G., 1970, Geochemical and geophysical reconnaissance of parts of the Yakutat and Mount St. Elias quadrangles, Alaska: U.S. Geological Survey Bulletin 1312-L, 12 p.
The Top Ten Gold Producing States
These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.
