The Walsh Cut (alluvial placer) 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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Walsh Cut (alluvial placer) MRDS details
Site Name
Primary: Walsh Cut (alluvial placer)
Commodity
Primary: Gold
Secondary: Tungsten
Secondary: Silver
Secondary: Lead
Secondary: Antimony
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: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Placer Au-PGE
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Scorodite
Ore: Stibnite
Ore: Scheelite
Ore: Gold
Ore: Galena
Ore: Arsenopyrite
Gangue: Quartz
Comments
Comment (Workings): Workings / Exploration = The core of the older deposit could have formed from the erosion of a residual placer upslope at Walsh Cut. The lower and younger fan probably formed soon after World War II.
Comment (Exploration): Status = Probably inactive
Comment (Reference): Primary Reference = This report
Comment (Geology): Age = Holocene.
Comment (Reserve-Resource): Reserves = There is a low-grade resource of gold and other metals in the fan deposits.
Comment (Geology): Geologic Description = Two distinct alluvial fans have formed below the mouth of Walsh Cut (NM214). The lower fan resulted from hydraulic operations in Walsh Cut. The upper and larger fan is covered with soil and vegetation. It could have formed in part from placer mining operations, but also from natural erosion of a residual placer that was later mined in Walsh Cut. Quartz boulders locally crop out in the upper fan. These boulders contain sulfides, principally arsenopyrite and more rarely galena and stibnite. They probably also contain scheelite. The upper fan extends between elevations of 230 and 320 feet and is as much as 300 feet across; it is about 450 feet long. The lower manmade fan extends between elevations of 205 and 230 feet and is as much as 250 feet across. It is only sparsely vegetated and contains abundant boulders and cobbles of quartz and sulfides. Soil samples collected from the fans locally exceed 1 ppm gold and are strongly anomalous in arsenic and other metals.
Comment (Deposit): Model Name = Alluvial placer Au (Cox and Singer, 1986; model 39a).
References
Reference (Deposit): Hawley, C.C., and Hudson, T.L., 2002, Alaska Resource Data File, Nome quadrangle: U.S. Geological Survey Open-File Report 02-113, 735 p.
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