|Quadrangle map, 1:250,000-scale||SR|
|Quadrangle map, 1:63,360-scale||D-4|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This prospect is located at an elevation of about 300 feet on the east flank of hill 3652 overlooking Hummer Bay. It is in the SE1/4 section 35, T. 10 N., R. 6 E., of the Seward Meridian. This is location 1126 of Condon and Cass (1958), location 63 of Cobb and Richter (1972), location 84 of MacKevett and Holloway (1977), location 132 of Cobb and Tysdal (1980) and location 159 of Jansons and others (1984). This location is accurate to within a quarter of a mile.|
This prospect is hosted by slate and graywacke of the Valdez Group of Late Cretaceous age (Jansons and others, 1984). The deposit consists of numerous irregular quartz stringers in a folded and faulted shear zone. The shear zone strikes between S10W to S40W and dips 60NW (Johnson, 1914 [B 592-G, p. 232]).
The quartz stringers are generally parallel to each other and to the strike of the shear zone. The longest stringer is traceable for about 60 feet; its width varies between 3 and 12 inches. A winze is sunk on this stringer.
The ore consists of quartz, cream-colored carbonate (ankerite or calcite), chalcopyrite, galena, and pyrite, but the ore minerals are not abundant (Johnson 1914 [B 592-G, p. 232]).Workings on the prospect consist of a 40-foot-long adit and a winze of unknown depth. No assay results are reported.
|Geologic map unit||(-148.333287611248, 60.9071160193248)|
|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 rock of the Valdez Group of Late Cretaceous age.|
|Workings or exploration||
Workings on the prospect consist of a 40-foot-long adit, a winze of unknown depth, and stripping (Johnson, 1914 [B 592-G, p. 232]). No assay results are reported.The U.S. Bureau of Mines searched for the prospect in 1979 but did not locate the workings. They collected two stream sediment samples from Hummer Creek (Hoekzema and Sherman, 1983). Gold and silver levels were below detection limits.
|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.
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.
Condon, W.H., and Cass, J.T., 1958, Map of a part of the Prince William Sound area, Alaska, showing linear geologic features as shown on aerial photographs: U.S. Geological Survey Miscellaneous Investigations Series Map I-273, 1 sheet, scale 1:125,000.
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.
Johnson, B.L., 1914, The Port Wells gold-lode district, Alaska: U.S. Geological Survey Bulletin 592-G, p. 195-236.
Johnson, B.L., 1915, Mining on Prince William Sound: U.S. Geological Survey Bulletin 622-E, p. 131-139.
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.
|Reporters||Jeff A. Huber (Anchorage)|
|Last report date||3/7/2000|