The Douglas Island Deposit is a vanadium, chromium, and copper 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
Elevation:
Commodity: Vanadium, Chromium, Copper
Lat, Long: 58.27833, -134.39333
Map: View on Google Maps
Douglas Island Deposit MRDS details
Site Name
                            
                            Primary: Douglas Island Deposit
                        
                
Commodity
                                        
                Primary: Vanadium
                
                            
                Primary: Chromium
                
                            
                Primary: Copper
                
                            
                Secondary: PGE
                
                            
                Tertiary: Scandium
                
                            
                Tertiary: Nickel
                
                            
                Tertiary: Cobalt
                
                        
Location
                                                State: Alaska 
                                            
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
                            Record Type: Site
                Operation Category: Producer
                Operation Type: Unknown
                Years of Production: 
                Organization: 
                Significant: N
           
        
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
                    Alteration Type: L
                    Alteration Text: Barrovian Metamorphism (Mainly In The Prehnite-Pumpellyite Metagraywacke Facies, Increasing Eastward To The Lower Greenschist Facies On Eastern Douglas Island)
            
Rocks
    
                    Name: Ultramafic Intrusive Rock
                    Role: Associated
                    Age Type: Associated Rock Unit
                    Age Young: Late Cretaceous
    
                    Name: Ultramafic Intrusive Rock
                    Role: Associated
                    Age Type: Host Rock
                    Age Young: Late Cretaceous
Analytical Data
                                    
                Analytical Data: STANDARD DEVIATION - 0.003 .
            
                        
                Analytical Data: RANGE-TR. TO 0.019
            
                        
                Analytical Data: AVERAGE PT:  (PT & PD) .34 .  AVERAGE PD CONTENT, IN PARTS PER MILLION OF METAVOLCANIC ROCKS:  MEAN - 0.012
            
                        
                Analytical Data: AVERAGE PT:  PD .51
            
                        
                Analytical Data: AVERAGE PLATINUM 6 PPB
            
                        
                Analytical Data: PGM: AVERAGE PALLADIUM 12 PPB
            
                    
Materials
Not available
Comments
Comment (Location): AREA INCLUDES DOUGLAS ISLAND, EAST SIDE OF LYNN CANAL SOUTH OF BERNERS BAY, AND GLASS PENINSULA ON EASTERN ADMIRALTY ISLAND. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).
Comment (Commodity): NO DATA AVAILABLE FOR PGM CONTENT IN ULTRAMAFICS
References
                
                                        Reference (Deposit): FORD, A., BREW, D., 1978 , MINOR METAL CONTENT OF CRETACEOUS GREENSTONE, JUNEAU, ALASKA:  U.S.G.S. CIRCULAR 772 - B, P. B - 85 
                                                                
            
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