The Iron Creek (lower) is a iron 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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Iron Creek (lower) MRDS details
Site Name
Primary: Iron Creek (lower)
Commodity
Primary: Iron
Secondary: Lead
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
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Role: Host
Age Type: Host Rock
Age Young: Santonian
Analytical Data
Not available
Materials
Ore: Limonite
Ore: Hematite
Comments
Comment (Exploration): Status = Inactive
Comment (Geology): Age = Post mid-Cretaceous, the age of metamorphism of the host carbonate rocks.
Comment (Reference): Primary Reference = Herreid, 1970
Comment (Workings): Workings / Exploration = Surface exposure only; workings have not been discribed at this locality although it was probably prospected before 1915, as were other iron oxide prospects in the area.
Comment (Deposit): Model Name = Iron oxide veins and replacement of marble and schist.
Comment (Geology): Geologic Description = The Lower Iron Creek gossan was located by Herreid (1970, figure 1) and shown to be about 600 feet long in a north-northwest direction. It is in massive marble, probably the same as the massive marble unit of Bundtzen and others (1994). This occurrence is probably similar to other iron oxide deposts in the area such as the Cub Bear prospect (NM133) and Iron Creek prospect (NM131). Herreid (1970) noted anomalous lead at this prospect, but it is not reflected in the one sample for which an analysis was reported from the occurrence (sample 146, Herried, 1970). The origin of the iron deposits in the area is uncertain. They may be iron oxide gossan developed by the oxidation of sulfide deposits (Eakin, 1915 [B 622-I, p. 361-365]; Mulligan and Hess, 1965; Herreid, 1970). Alternatively, they could be hypogene iron oxide (and iron carbonate) deposits. Inasmuch as several similar iron deposits nearby, such as the American prospect (NM014) and the Monarch prospect (NM017), contain anomalous amounts of zinc, they could be transitional to zinc-lead-fluorite deposits such as the Quarry prospect (NM135).
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): Eakin, H.M., 1915, Placer mining in Seward Peninsula: U.S. Geological Survey Bulletin 622-I, p. 366-373.
Reference (Deposit): Mulligan, J.J., and Hess, H.D., 1965, Examination of the Sinuk iron deposits, Seward Peninsula, Alaska: U.S. Bureau of Mines Open-File Report 8-65, 34 p.
Reference (Deposit): Herreid, G.H., 1970, Geology and geochemistry of the Sinuk area, Seward Peninsula, Alaska: Alaska Division of Mines and Minerals Geologic Report 36, 61 p., 3 sheets, scale 1:42,000.
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