|Quadrangle map, 1:250,000-scale||MM|
|Quadrangle map, 1:63,360-scale||C-2|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The White Hawk prospect is at an elevation of about 2150 feet on the north wall of the canyon of Eureka Creek, about three-quarters of a mile above its mouth. It is in the SW1/4 SE1/4 section 12. T. 16 S., R. 18 W., Fairbanks Meridian. The location is about at the center of the patented claim, and is accurate within about 300 feet. The prospect is number 15 of Bundtzen, Smith, and Tosdal (1976), 20 of Hawley and Associates (1978), 31 of Bundtzen (1981), and 34 of Thornsberry, McKee, and Salisbury (1984).|
The White Hawk prospect is in felsic(?) schist, close to a fault contact between Birch Creek Schist and felsic rocks of the Spruce Creek sequence (Thornsberry, McKee, and Salisbury, 1984, fig. K-2). The deposit consists of mineralized siderite-quartz veins. A hole (K-13), drilled by the U.S. Bureau of Mines in 1983, encountered pyrrhotite-bearing greenschist of Birch Creek type (Thornsberry, McKee, and Salisbury, 1984, fig. K-2; v. 2, occurrence 34). Early workings exposed siderite-quartz veins containing sphalerite, galena, pyrite, stibnite, tetrahedrite, and boulangerite and possibly other lead-antimony sulfides (Bundtzen, 1981). The sulfides are oxidized to azurite, goethite, hematite, and malachite.Samples of dump material assayed as much as 24.5 percent lead, 32.5 percent zinc, 11 percent antimony, 11.6 ounces of silver per ton, and a small amount of gold (Thornsberry, McKee, and Salisbury, 1984, v. 2, occurrence 34). The prospect was developed by pits and a shallow shaft, largely sloughed. The claim discovery was on a 3-foot thick tetrahedrite-bearing vein of apparent NE strike. The vein probably continues southwesterly to a shallow shaft, where a similar 3-foot vein is exposed (Davis, 1923, p. 130).
|Geologic map unit||(-150.947385711482, 63.5352936879156)|
|Mineral deposit model||Polymetallic vein (Cox and Singer, 1986; model 22c).|
|Mineral deposit model number||22c|
|Age of mineralization||The deposit is assumed to be Eocene (see record MM091).|
|Alteration of deposit||Oxidation of iron and copper minerals.|
|Workings or exploration||The vein was discovered and explored by pits and shallow shafts before 1922 (Davis, 1923). Some additional work was done by Seraphim (1962). The shallow workings are sloughed.|
|Indication of production||None|
Additional commentsThe prospect is in Denali National Park and Preserve.
Bundtzen, T.K., 1981, Geology and mineral deposits of the Kantishna Hills, Mt. McKinley quadrangle, Alaska: M. S. Thesis, University of Alaska, College, Alaska, 238 p.
Bundtzen, T.K., Smith, T.E., and Tosdal, R.M., 1976, Progress report--Geology and mineral deposits of the Kantishna Hills: Alaska Division of Geological and Geophysical Surveys Open-File Report AOF-98, 80 p., 2 sheets, scale 1:63,360.
Cox, D.P., and Singer, D.A., eds., 1986, Mineral deposit models: U.S. Geological Survey Bulletin 1693, 379 p.
Davis, J. A., 1923, The Kantishna region, Alaska, in Stewart, B. D., Annual Report of the Mine Inspector to the Governor of Alaska, 1922: Alaska Division of Geological and Geophysical Surveys AR-1922.
Hawley, C. C. and Associates, Inc, 1978, Mineral appraisal of lands adjacent to Mt. McKinley National Park, Alaska: U. S. Bureau of Mines Open-File Report 24-78, 275 p. (paged by sections).
Seraphim, R.H., 1962, Kantishna District: Alaska Division of Mines and Minerals Miscellaneous Report 193-3, 11 p., 10 sheets.
Thornsberry, V. V., McKee, C. J., and Salisbury, W. G., eds, 1984, 1983 Mineral Resource Studies: Kantishna Hills and Dunkle Mine Areas, Denali National Park and Preserve, Alaska: U. S. Bureau of Mines Open-File Report 129-84. 3 Volumes: v. 1, Text; v. 2, Appendices; v. 3, Maps. Prepared by Salisbury & Dietz, Inc., Spokane, WA.
|Last report date||4/23/2001|