|Quadrangle map, 1:250,000-scale||SR|
|Quadrangle map, 1:63,360-scale||B-8|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The occurrence is located in the SE1/4 section 31, T. 5 N., R. 2 W. of the Seward Meridian. It is situated at an approximate elevation of 800 feet on the divide between Dry Creek and Kenai Lake. This is location 32 of Cobb and Richter (1972), location 42 of MacKevett and Holloway (1977), location 63 of Cobb and Tysdal (1980), and location S-238 of Jansons and others (1984). This location is accurate to within a quarter of a mile.|
Geologic descriptionThe occurrence consists of a highly fractured and altered dike, 6 to 8 feet wide, that cuts slate county rock (Grant and Higgins, 1909). Slate in this area is mapped as Valdez Group of Late Cretaceous age (Tysdal, 1978 [MF-880-A]). The dike is a fine-grained, sheared, gray, acidic rock. Fractures in the dike have been healed by quartz that contains stringers and disseminated acicular crystals of stibnite. The age of the dike is unknown. Tysdal (1978 [MF-880-A]) reported that local quartz veins contain stibnite, but he provided no assay results.
|Geologic map unit||(-149.696241094675, 60.479616960989)|
|Mineral deposit model||Polymetallic veins (Cox and Singer, 1986; model 22c)|
|Mineral deposit model number||22c|
|Age of mineralization||Cretaceous or younger; the veins cut rocks of the Valdez Group of Late Cretaceous age.|
|Alteration of deposit||Although the dike is reported to be altered, no information regarding the type of alteration is available in the literature.|
|Workings or exploration||No workings or improvements are reported. Assays of the antimony ore are reported to show neither gold nor silver (Grant and Higgins, 1909). No assay information is available regarding the antimony content of the ore.|
|Indication of production||None|
Additional commentsThe U.S. Bureau of Mines indicated that the dike is probably a continuation of the mineralized dike at the K and T prospect (SR181) (Jansons and others, 1984).
Brooks, A.H., 1916, Mineral resources of Alaska, report on progress of investigations in 1915: U.S. Geological Survey Bulletin 642, 279 p.
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.
Grant, U.S., and Higgins, D.F., Jr., 1909, Notes on geology and mineral prospects in the vicinity of Seward, Kenai Peninsula: U.S. Geological Survey Bulletin 379-C, p. 98-107.
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.
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.
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.
|Reporters||Jeff A. Huber and Carol S. Huber (Anchorage)|
|Last report date||3/5/2000|