The Stipek and Kotovic (divide between Glacier and Rock Creeks) 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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Stipek and Kotovic (divide between Glacier and Rock Creeks) MRDS details
Site Name
Primary: Stipek and Kotovic (divide between Glacier and Rock Creeks)
Commodity
Primary: Gold
Secondary: Silver
Secondary: Tungsten
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
Alteration Type: L
Alteration Text: Albitization and sulfidization of schist.
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Arsenopyrite
Ore: Galena
Ore: Gold
Ore: Pyrite
Ore: Scheelite
Gangue: Albite
Gangue: Quartz
Comments
Comment (Reference): Primary Reference = Cathcart, 1922
Comment (Deposit): Model Name = Low-sulfide Au-quartz veins (Cox and Singer, 1986; model 36a).
Comment (Geology): Age = Probably mid-Cretaceous or younger; see NM207.
Comment (Production): Production Notes = Some scheelite may have been produced in 1916.
Comment (Geology): Geologic Description = Massive quartz veins and mineralized schist subcrop on the divide between Glacier Creek and Rock Creek. The general trend of the deposit is northeast, more or less parallel to the ridge. The prospect was developed around 1916 by Stipek and Kotovic (Mertie, 1918). Mertie (1918) reported the occurrence of scheelite at this location and thought the deposit was similar to that of Sophie Gulch (NM208). Cathcart (1922, figure 32, p. 241) found a quartz-feldspar vein containing pyrite and arsenopyrite exposed in a trench. The deposit was again prospected from 1985 to 1995 in the period of exploration initiated by geologist R.V. Bailey. The prospect is within the extensive gold-antimony soil geochemical anomaly identified by BHP in 1990 and by Kennecott Exploration Company in 1994 and 1995. This anomaly is essentially continuous on the lower slopes east of Snake River from Glacier Creek (NM220) to Lindblom Creek (NM205) and discontinuous to Goodluck Gulch (NM202). The prospect was trenched and drilled by Placer Dome in 1987 and 1988. Their exploration showed that this deposit is low grade and characterized by massive bull quartz veins, extensive albitization, and introduction of arsenopyrite. Some white vein quartz contains less than 1 percent galena. Exposures are poor; bedrock is mainly chloritic mica-quartz schist and some graphitic quartz schist, generally related to the chlorite-rich metaturbidite unit of Bundtzen and others (1994).
Comment (Workings): Workings / Exploration = The area was prospected by Stipek and Kotovic before 1916 by shallow pits and shafts (Mertie, 1918 [B 662-I, p. 425-449]; Cathcart, 1922). Renewed exploration began in 1985; Placer Dome drilled several shallow holes in the area in 1987-88.
Comment (Exploration): Status = Probably inactive
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.
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.
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): 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): Cathcart, S.H., 1922, Metalliferous lodes in southern Seward Peninsula: U.S. Geological Survey Bulletin 722, p. 163-261.
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