|Quadrangle map, 1:250,000-scale||CR|
|Quadrangle map, 1:63,360-scale||C-6|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The location of these prospects is known no more closely than at the north end of Noyes Island. The site is arbitrarily plotted in about the center of the SW1/4 section 11, T. 73 S., R. 77 E.|
Geologic descriptionWright and Wright (1908) note that chalcopyrite and pyrrhotite occur at some unspecified location on the north end of Noyes Island near the contact of a granitic body. An analysis of pyrrhotite from what they call the the Brown and Metz prospect showed 0.1 to 0.2 percent nickel, and a trace of cobalt. Buddington and Chapin (1929) note a molybdenum occurrence at some unspecified location on the north end of Noyes Island. The rocks on the north end of Noyes Island consist of a small Cretaceous pluton that intrudes basaltic to andesitic rocks of the Descon Formation of Silurian and Ordovician age (Brew, 1996).
|Geologic map unit||(-133.671758613081, 55.5503172357169)|
|Indication of production||None|
Brew, D.A., 1996, Geologic map of the Craig, Dixon Entrance, and parts of the Ketchikan and Prince Rupert quadrangles, southeastern Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-2319, 53 p., 1 sheet, scale 1:250,000.
Buddington, A.F., and Chapin, Theodore, 1929, Geology and mineral deposits of southeastern Alaska: U.S. Geological Survey Bulletin 800, 398 p.
Cobb, E. H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Craig quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-869, 262 p.
Eberlein, G.D., Churkin, Michael, Jr., Carter, Claire, Berg, H.C., and Ovenshine, A. T., 1983, Geology of the Craig quadrangle, Alaska: U.S. Geological Survey Open-File Report 83-91, 52 p.
|Reporters||D.J. Grybeck (Applied Geology)|
|Last report date||5/1/2004|