|Quadrangle map, 1:250,000-scale||SK|
|Quadrangle map, 1:63,360-scale||B-2|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is at an elevation of about 1,500 feet, 1.7 miles west of the summit of Tukgahgo Mountain. It is in the south-central part of section 5, T. 30 S., R. 57 E. of the Copper River Meridian. It is shown as mineral occurrence 7 on sheet 1 of Redman and others (1984) and as number S048 by Wells and others (1986).|
Geologic descriptionRedman and others (1984) describe this occurrence as a series of chalcopyrite-bearing quartz veins that cut a diorite dike in metabasalt. The veins are 1 to 10 inches thick and at least 35 feet long. A representative sample contained 520 ppm copper and 0.3 ppm silver. The diorite dike is probably the same age as the nearby mid-Cretaceous, Mount Kashagnak pluton.
|Geologic map unit||(-135.681834499125, 59.2996719256207)|
|Mineral deposit model||Quartz sulfide veins (Cox and Singer, 1986; model 22c or 36a).|
|Mineral deposit model number||22c or 36a|
|Age of mineralization||Mid-Cretaceous or younger based on the age of the dike cut by the veins (Redman and others, 1984).|
|Indication of production||None|
Redman, E.C., Retherford, R.M., and Hickok, B.D., 1984, Geology and geochemistry of the Skagway B-2 Quadrangle, southeastern Alaska: Alaska Division of Geological and Geophysical Surveys Report of Investigations 84-31, 34 p., 4 sheets, scale 1:40,000.
|Reporters||T.C. Crafford (T. Crafford & Associates, Anchorage)|
|Last report date||2/4/2001|