Description
John Mertie (Mapped In 1919) U.S.G.S.
Commodities
PrimaryNickel, Copper
Commodity typeM
Deposit
Deposit sizeN
Ore controlReed Described The Sulfide Mineralization As Occurring In A Mafic Sill That Averages 100 Ft. In Thickness And Dips Steeply Eastward.
Materials
Ore mineralsChalcopyrite, Pentlandite, Pyrrhotite
Geology
Host rockGabbro,Norite
StructureExploration By Dmea Revealed That The Mafic Intrusive Where The Sulfide Mineralization Occurs Is Pipelike In Form, Consisting Of Gabbro And Norite. The Pipe Plunges Approximately 30 Degrees E. Along A Contact Between Quartz-Sericite Schists And Overlying Graphitic Pyhillite. It Has A Maximum Diameter Of 60-200 Feet And Has Been Explored For 900 Feet Downdip.
Economic & production
Development statusOccurrence
Discovery year1919
Identification
Deposit ID10069267
MRDS IDW002851
RegionNA
Data scoreD
Coordinates58.49972, -136.33541
References
CORNWALL, H.R., 1966, NICKEL DEPOSITS OF NORTH AMERICA: USGS BULL. 1223, P. 37, MAP P. 10-11REED, J.C., 1942, NICKEL-COPPER DEPOSIT AT FUNTER BAY, ADMIRALTY ISLAND, ALASKA: USGS BULL. 936-0, P. 349-361.CORNWALL, H.R., 1973: NICKEL, USGS PROF. PAPER 820, P. 4401919 GEOLMAP JOHN MERTIE1950 DIREXPL DEFENSE MINERALS EXPLORATION ADMINISTRATIONCORNWALL, H.R., 1973, SEE REFERENCES