The Ryan 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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Ryan MRDS details
Site Name
Primary: Ryan
Commodity
Primary: Gold
Location
State: Alaska
District: Willow Creek
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
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Role: Host
Age Type: Host Rock
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Ore: Gold
Gangue: Quartz
Comments
Comment (Exploration): Status = Inactive
Comment (Geology): Age = Late Cretaceous or younger; the host of mineralization is the Late Cretaceous Willow Creek Pluton.
Comment (Reference): Primary Reference = Ray, 1954
Comment (Workings): Workings / Exploration = Apparently only minor surface prospecting.
Comment (Geology): Geologic Description = Details about the prospect are unavailable. Most likely, a gold-bearing quartz vein(s) cuts the Late Cretaceous Willow Creek Pluton. The Willow Creek Pluton is a zoned pluton. The outer part consists of hornblende quartz diorite and lesser hornblende tonalite; the core consists of hornblende-biotite granodiorite, and lesser hornblende-biotite quartz monzodiorite and biotite quartz monzonite.
Comment (Deposit): Other Comments = This prospect located from Plate I of Ray (1954), no description of the prospect appears in the text. Ray closes the narrative on lode mines and prospects with: 'Numerous small prospects are scattered throughout the mining district, but aside from those discussed above they have not been sufficiently prospected or are not well enough exposed to justify a description herein.'
Comment (Geology): Age = Host rock is Late Cretaceous.
References
Reference (Deposit): Ray, R.G., 1954, Geology and ore deposits of the Willow Creek Mining district, Alaska: U.S. Geological Survey Bulletin 1004, 86 p.
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