The Unnamed (north of Boulder Creek, near hill 1293) 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 (north of Boulder Creek, near hill 1293) MRDS details
Site Name
Primary: Unnamed (north of Boulder Creek, near hill 1293)
Commodity
Primary: Gold
Secondary: Zinc
Secondary: Lead
Secondary: Arsenic
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: Occurrence
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: Sulfidation and albitization of schist near the occurrence.
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Arsenopyrite
Gangue: Quartz
Gangue: Albite
Comments
Comment (Workings): Workings / Exploration = The occurrence was found during follow-up of a soil geochemistry survey conducted for Kennecott Exploration Company in 1992.
Comment (Deposit): Model Name = Low-sulfide Au-quartz veins? (Cox and Singer, 1986; model 36a).
Comment (Exploration): Status = Inactive
Comment (Geology): Age = Mid-Cretaceous; postdates regional metmorphism and may be similar in age to low-sulfide gold-quartz veins of the Nome district (see, for example, the Divide prospect, NM058).
Comment (Reference): Primary Reference = This report
Comment (Geology): Geologic Description = Mineralized schist crops out south of hill 1293 on the ridge crest northwest of theTwin Mountain Creek prospect (NM166). The occurrence was found as a result of a soil geochemistry survey of the Boulder-Twin Mountain Creek area by Kennecott Exploration Company in 1992. The soil survey grid consisted of north-trending lines 1,000 feet apart and east-trending lines 2,000 feet apart. Soils were collected on 200-foot centers (Hawley Resouce Group for Kennecott Exploration Company, written communication, 1992). Soils near this occurrence were strongly anomalous in gold, arsenic, lead, and zinc. Rock samples at the occurrence contained as much as 0.1 ounce of gold per ton and more than 1 percent arsenic. The occurrence is within an area about 400 by 400 feet where soils contain as much as 780 ppm lead, 580 ppm zinc, more than 1,000 ppm arsenic, and more than 100 ppb gold. The occurrence is in an anomalous area along the Twin Mountain-Rodine fault. Country rock at the site is west-dipping calcareous metaturbidite (Bundtzen and others, 1994). The site is moderately oxidized. Galena and sphalerite were not found but probably were present before oxidation.
References
Reference (Deposit): Bundtzen, T.K., Reger, R.D., Laird, G.M., Pinney, D.S., Clautice, K.H., Liss, S.A., and Cruse, G.R., 1994, Progress report on the geology and mineral resources of the Nome mining district: Alaska Division of Geological and Geophysical Surveys, Public Data-File 94-39, 21 p., 2 sheets, scale 1:63,360.
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