The Blue Bonanza 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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Blue Bonanza MRDS details
Site Name
Primary: Blue Bonanza
Secondary: Midnight Sun
Commodity
Primary: Gold
Secondary: Silver
Secondary: Lead
Secondary: Antimony
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: Arsenopyrite
Ore: Galena
Ore: Gold
Ore: Stibnite
Ore: Tetrahedrite
Gangue: Quartz
Comments
Comment (Workings): Workings / Exploration = The mine was developed by a 35-degree inclined shaft at least 30 feet deep; the richest ore was concentrated in a zone 12 to 15 feet below the surface (Chapin, 1914 [B 592-J, p. 321-355]).
Comment (Deposit): Model Name = Schist-hosted gold-quartz vein
Comment (Geology): Geologic Description = Ore was mined from a rich quartz vein that was 18 inches thick at the surface and narrowed with depth. Two periods of vein formation have been described. The older quartz is crushed and has cavities, whereas the younger quartz has glassy crystals and is banded parallel to walls (Smith, 1913 [B 525]). Gold is visible both near and remote from sulfides. The sulfides are galena, pyrite, and some stibnite; considerable silver is present in tetrahedrite. By 1914, a shaft was driven to a depth of 130 feet; however, the richest ore was concentrated in a zone 12 to 15 feet below the surface (Chapin, 1914 [B 592-J, p. 321-355]). Hill (1933) described a quartz vein on the property as being 5 to 6 inches wide and oriented N. 10 W., dipping 65 E. A grab sample from the dump contained $9.22 of gold per ton (0.45 ounce of gold per ton) (Hill, 1933).
Comment (Reference): Primary Reference = Smith, 1913 (B 525)
Comment (Exploration): Status = Inactive
References
Reference (Deposit): Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Fairbanks quadrangle, Alaska: U.S. Geological Survey Open-File Report 76-662, 174 p.
Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Fairbanks quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-410, 1 sheet, scale 1:250,000.
Reference (Deposit): Smith, P.S., 1913, Lode mining near Fairbanks, in Prindle, L.M., A geologic reconnaissance of the Fairbanks quadrangle, Alaska: U.S. Geological Survey Bulletin 525, p. 153-216.
Reference (Deposit): Smith, P.S., 1913, Lode mining near Fairbanks: U.S. Geological Survey Bulletin 542-F, p. 137-202.
Reference (Deposit): Chapman, R.M., and Foster, R.L., 1969, Lode mines and prospects in the Fairbanks district, Alaska: U.S. Geological Survey Professional Paper 625-D, 25 p., 1 plate.
Reference (Deposit): Hill, J.M., 1933, Lode deposits of the Fairbanks District, Alaska: U.S. Geological Survey Bulletin 849-B, p. 29-163.
Reference (Deposit): Killeen, P.L., and Mertie, J.B., 1951, Antimony ore in the Fairbanks District, Alaska: U.S. Geological Survey Open-File Report 51-46, 43 p.
Reference (Deposit): Chapin, Theodore, 1914, Lode mining near Fairbanks, Alaska: U.S. Geological Survey Bulletin 592-J, p. 321-355.
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