|Quadrangle map, 1:250,000-scale||SR|
|Quadrangle map, 1:63,360-scale||D-7|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The prospect is in the SW1/4 section 1, T. 9 N., R. 2 W., of the Seward Meridian. It is at 1,600 feet elevation, on the north side of Bear Creek along a small north-flowing tributary about 2 miles from the head of Bear Creek. This is location 9 of Cobb and Tysdal (1980), location 4 of Cobb and Richter (1972), and location S-302 of Jansons and others (1984). Cobb and Tysdal (1980) summarized the relevant references under the name Coon (and Plowman).|
Geologic descriptionThis deposit consists of sulfide-bearing, quartz-calcite veins that are 2 inches to 1 foot thick in a shear zone at least 7 feet wide that cuts slate and graywacke host rock of the Valdez Group of Late Cretaceous age (Martin and others, 1915). The veins contain silver, galena, arsenopyrite, pyrite, and argentiferous galena. The veins and shear zone strike N30E and dip vertically, nearly parallel to bedding of the host rock.
|Geologic map unit||(-149.556873859519, 60.8951368982166)|
|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||In 1915, development work consisted of an open cut 7 feet wide with a 15-foot vertical face. The cut was in a small gulch that follows the shear zone (Martin and others, 1915). A 40-foot adit was present in 1933 (Tuck, 1933) but has caved (Tysdal, 1978 [MF-880-A]).|
|Indication of production||None|
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.
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.
Martin, G.C., Johnson, B.L., and Grant, U.S., 1915, Geology and mineral resources of Kenai Peninsula, Alaska: U.S. Geological Survey Bulletin 587, 243 p.
Mitchell, P.A., 1979, Geology of the Hope-Sunrise (gold) mining district, north-central Kenai Peninsula, Alaska: Stanford University Master of Science thesis, 123 p.
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.
Tysdal, R.G., 1978, Mines, prospects, and occurrences map of the Seward and Blying Sound quadrangles, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-880-A, 2 sheets, scale 1:250,000.
Wedow, Helmuth, White, M. G., and Moxham, R. M., 1952, Interim report on an appraisal of the uranium possibilities of Alaska: U.S. Geological Survey Open-File Report 52-165, 124 p.
|Reporters||Jeff A. Huber (Anchorage)|
|Last report date||1/11/2000|