The Unnamed (lower Boulder Creek) 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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Unnamed (lower Boulder Creek) MRDS details
Site Name
Primary: Unnamed (lower Boulder Creek)
Commodity
Primary: Gold
Location
State: Alaska
District: Nome
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
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: Limonite
Ore: Pyrite
Gangue: Quartz
Comments
Comment (Deposit): Model Name = Low-sulfide Au-quartz veins (Cox and Singer, 1986; model 36a).
Comment (Workings): Workings / Exploration = A short adit, now caved, was driven northeast on an iron-stained quartz vein. This may be the same prospect as that reported by Collier and others (1908).
Comment (Reference): Primary Reference = Collier and others, 1908
Comment (Exploration): Status = Inactive
Comment (Geology): Geologic Description = Auriferous quartz veins near the mouth of Boulder Creek were reported to contain 0.15 to 0.20 ounce of gold per ton (Collier and others, 1908, p. 196). Mertie (1918) reported a gold-bearing quartz vein in the bed of Boulder Creek on placer claim No. 1 Below Discovery; it was in a fault zone from which free gold could be panned. Examination of this area in 1991 located a lode prospect on the north side of Boulder Creek about 800 feet upstream from the downstream limit of patented mining claims. At this point, a short adit had been driven northeast on a limonite-stained quartz vein (Kennecott Exploration Company, written communication, 1992). The limonite probably replaced pyrite. No free gold was observed, but a sample of the vein contained about 0.1 ounce of gold per ton.
Comment (Geology): Age = Mid-Cretaceous or younger; postdates regional metamorphism of the host rocks.
References
Reference (Deposit): Mertie, J.B., Jr., 1918, Placer mining on Seward Peninsula: U.S. Geological Survey Bulletin 662, p. 451-458.
Reference (Deposit): Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Nome quadrangle, Alaska: U.S. Geological Survey Open-File report 78-93, 213 p.
Reference (Deposit): Collier, A. J., Hess, F.L., Smith, P.S., and Brooks, A.H., 1908, The gold placers of parts of Seward Peninsula, Alaska, including the Nome, Council, Kougarok, Port Clarence, and Goodhope precincts: U.S. Geological Survey Bulletin 328, 343 p.
Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Nome quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-463, 2 sheets, scale 1:250,000.
Reference (Deposit): Moffit, F.H., 1913, Geology of the Nome and Grand Central quadrangles, Alaska: U.S. Geological Survey Bulletin 533, 140 p.
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