|Quadrangle map, 1:250,000-scale||TK|
|Quadrangle map, 1:63,360-scale||B-5|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The Copper King prospect is at an elevation of about 3,600 feet on the south valley wall of Iron Creek. It is about 1.2 miles south-southeast of the junction of the East Fork and Iron Creek and 4 miles east of Rainbow Lake, in the NE1/4 sec. 24, T. 26 N., R. 1 E., Seward Meridian. The location is accurate to within 1/4 mile. This is locality 81 of Csejtey and Miller(1978).|
Geologic descriptionThe prospect is in greenstone cut by a shear zone that strikes NE, dips 60 E, and varies from 6 to 20 feet wide (Capps, 1919 [B 692]). Replacement bands within the shear zone consist of massive chalcopyrite, specular hematite intergrown with quartz, and pyrite. Other replacement mineralization varies considerably and contains minor values of gold and silver. A number of trenches and open cuts have been excavated (Capps, 1919 [B 692]).
|Geologic map unit||(-149.185324537015, 62.3307022510114)|
|Mineral deposit model||Basaltic Cu (Cox and Singer, 1986; model 23)|
|Mineral deposit model number||23|
|Alteration of deposit||Silicification.|
|Workings or exploration||A number of trenches and open cuts have been excavated (Capps, 1919 [B 692]).|
|Indication of production||None|
Additional commentsMAS/MILS number 20760007.
Capps, S.R., 1919, Mineral resources of the upper Chulitna region: U.S. Geological Survey Bulletin 692-D, p. 207-232.
Capps, S.R., 1924, Geology and mineral resources of the region traversed by the Alaska Railroad: U.S. Geological Survey Bulletin 755-C, p. 73-150.
Cobb, E.H., 1972, Metallic mineral resources map of the Talkeetna Mountains quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-370, 1 sheet, scale 1:250,000.
Cobb, E.H., and Csejtey, Bela, Jr., 1980, Summaries of data on and lists of references to metallic and selected nonmetallic mineral deposits in the Talkeetna Mountains quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-716, 63 p.
Csejtey, Bela, Jr., and Miller, R.J., 1978, Map and table describing metalliferous and selected nonmetalliferous mineral deposits in the Talkeetna Mountains quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-558-B, 22 p., 1 sheet, scale 1:250,000.
Csejtey, Bela, Jr., Nelson, W.H., Jones, D.L., Silberling, N.J., Dean, R.M., Morris, M.S., Lanphere, M.A., Smith, J.G., and Silberman, M.L, 1978, Reconnaissance geologic map and geochronology, Talkeetna Mountains quadrangle, northern part of Anchorage quadrangle, and southwest part of Healy quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-558-A, 60 p., 1 sheet, scale 1:250,000.
MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.
|Reporters||R.K. Rogers (U. S. Geological Survey contractor)|
|Last report date||10/1/2002|