The Unnamed (lode in lower Rock 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 (lode in lower Rock Creek) MRDS details
Site Name
Primary: Unnamed (lode in lower Rock Creek)
Commodity
Primary: Gold
Secondary: Tungsten
Secondary: Silver
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: Albitization and silicification.
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Arsenopyrite
Ore: Scheelite
Ore: Pyrite
Ore: Gold
Gangue: Quartz
Gangue: Albite
Comments
Comment (Deposit): Model Name = Low-sulfide Au-quartz veins (Cox and Singer, 1986; model 36a).
Comment (Geology): Geologic Description = A massive quartz vein, as much as 4 feet wide, is exposed on the southeast side of Rock Creek about 600 feet upstream of the Snake River road (Hummel, 1962 [MF 247, locality 30]). Exposures on the south bank of Rock Creek between the quartz vein and the road locally also contain pyrite-arsenopyrite-bearing quartz veins (Hummel, 1962 [MF 247, locality 24]). These occurrences are separated from numerous other mineral deposits in the Rock Creek area by the Mount Brynteson fault. Hummel (1962 [MF 247]) mapped this nearly north-striking fault about one-half mile west of Mount Brynteson. The fault apparently continues southward to the Snake River flood plain. It also appears to have controlled the course of strongly linear Bergstrom Gulch. Hummel (1962 [MF 247]) reported the presence of gold and scheelite; arsenopyrite and pyrite are also present. Kennecott Exploration Company drilled two shallow reverse circulation holes in this area in 1994 or 1995 but found only low gold values.
Comment (Geology): Age = Mid-Cretaceous; veins cross cut regionally metamorphosed schist; see NM207.
Comment (Reference): Primary Reference = This report
Comment (Workings): Workings / Exploration = Quartz veins and sulfidized schist were explored by trenches and shallow shafts probably before 1920. Two prospects in the area between the Mount Brynetson fault and the Glacier Creek road were noted by Hummel (1962, localities 24 and 30). The area was soil sampled by BHP in 1989; it is within the extensive arsenic-gold anomaly that extends almost continuously from Glacier Creek to north of Lindblom Creek. Kennecott Exploration Company drilled two reconnaissance reverse circulation holes in this area in 1995 but found only low gold values.
Comment (Exploration): Status = Probably inactive
References
Reference (Deposit): Hummel, C.L., 1962, Preliminary geologic map of the Nome C-1 quadrangle, Seward Peninsula, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-247, 1 sheet, scale 1:63,360.
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