|Quadrangle map, 1:250,000-scale||SR|
|Quadrangle map, 1:63,360-scale||C-8|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The prospect is located in the SW1/4 section 35, T. 7 N., R. 3 W., of the Seward Meridian. The map site is at an elevation of about 2,700 feet. It is situated on the east bank of Afanasa Creek. This is location 19 of Cobb and Richter (1972), location 32 of MacKevett and Holloway (1977), location 46 of Cobb and Tysdal (1980), and location S-262 of Jansons and others (1984). This location is accurate to within a quarter of a mile.|
The deposit at this prospect consists of two quartz veins varying from a few inches to several feet in width. The host rock is slate and sandstone of the Valdez Group of Late Cretaceous age (Tysdal, 1978 [MF-880-A]). The country rock strikes north, and the veins apparently strike northwest. The veins were reported to be rich, but erratic, and of no great length (Tuck, 1933).Workings on the prospect consist of three adits that range from 50 to 90 feet in length (Tuck, 1933). Four ounces of gold was recovered using a rocker (Tuck, 1933).
|Geologic map unit||(-149.75766142246, 60.6483275667506)|
|Mineral deposit model||Low-sulfide Au-quartz veins (Cox and Singer, 1986; model 36a)|
|Mineral deposit model number||36a|
|Age of mineralization||Cretaceous or younger; the veins cut rocks of the Valdez Group of Late Cretaceous age.|
|Workings or exploration||Workings on the prospect consist of three adits that range from 50 to 90 feet in length (Tuck, 1933). Four ounces of gold was recovered using a rocker (Tuck, 1933). The rocker was present during the U.S. Bureau of Mines visit in 1980. Although the workings were not accessible and the veins were not exposed at the time of the Bureau's examination, assays from the dumps were encouraging. Two grab samples, respectively, assayed 0.34 ounce of gold and 1.48 ounces of gold per ton, and 1.8 and 1.9 ounces of silver per ton (Jansons and others, 1984).|
|Indication of production||None|
|Production notes||In 1914, four ounces of gold was recovered from a disintegrated quartz vein using a rocker (Tuck, 1933).|
Cobb, E.H., and Richter, D.H., 1972, Metallic mineral resources map of the Seward quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-466, 2 sheets, scale 1:250,000.
Cobb, E.H., and Tysdal, R.G., 1980, Summaries of data on and list of references to metallic and selected nonmetallic mineral deposits in the Blying Sound and Seward quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-621, 276 p.
Hoekzema, R.P., and Sherman, G.E., 1983, Mineral investigations in the Chugach National Forest, Alaska (Peninsula study area): U.S. Bureau of Mines in-house report; held at U.S. Bureau of Land Management Alaska State Office, Anchorage, 524 p.
Jansons, Uldis, Hoekzema, R.B., Kurtak, J.M., and Fechner, S.A., 1984, Mineral occurrences in the Chugach National Forest, southcentral Alaska: U.S. Bureau of Mines Mineral Land Assessment 5-84, 218 p., 2 sheets, 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.
Nelson, S.W., Dumoulin, J. A., and Miller, M.L., 1985, Geologic map of the Chugach National Forest, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1645-B, 16 p., 1 sheet, scale 1:250,000.
Tuck, Ralph, 1933, The Moose Pass-Hope district, Kenai Peninsula, Alaska: U.S. Geological Survey Bulletin 849-I, p. 469-530.
|Reporters||Jeff A. Huber (Anchorage)|
|Last report date||1/22/2000|