Lucky Strike Prospect, Dall Island, Ketchikan District, Prince of Wales-Outer Ketchikan Borough, Alaska, USA
NOTE: The surface and subsurface rights to the land in the vicinity have been conveyed to the Sealaska Corporation or are under application.
Location: The Lucky Strike prospect is poorly known and can be located no more closely than somewhere high on the ridge between Grace Harbor and Gooseneck Harbor in the center of Dall Island. The location may be anywhere within a mile or more of the SE1/4 section 30, T. 80 S., R. 83 E. Maas and others (1991) were unable to locate the prospect in the dense vegetation and there has apparently been little if any work on it since 1916.
Geology: The Lucky Strike prospect is near a regional-scale normal fault that separates pre-Ordovician marble and metamorphosed dacitic rocks to the west from pre-Ordovician, metamorphosed dacitic rocks to the east (Gehrels, 1991). As described by Chapin in 1918, the prospect is in a shear zone that contains chalcopyrite, pyrite, and much limonite. The host rocks are cut by quartz veinlets that carry pods of chalcopyrite. Chapin notes little development and there has apparently been little or no work on the property since 1918. Maas and others (1991) were unable to locate this prospect in the thick vegetation.
Workings: Probably little if any development; there apparently has been little or no work on this prospect since at least 1918. Bufvers (1967) indicates that it was discovered by Aaron Shellhouse.
Age: Unknown, other than that it is younger than the pre-Ordovician host rocks.
Alteration: Oxidization of pyrite.
Commodities (Major) - Cu
| Chalcopyrite|| Limonite|| Pyrite|| Quartz|
4 entries listed. 3 valid minerals.
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Bufvers, John, 1967, History of mines and prospects, Ketchikan district, prior to 1952: Alaska Division of Mines and Minerals Special Report 1, 32 p. Chapin, Theodore, 1918, Mining developments in the Ketchikan and Wrangell mining districts: U.S. Geological Survey Bulletin 662-B, p. 63-75 Cobb, E. H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Dixon Entrance quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-863, 34 p. Maas, K.M., Bittenbender, P E., and Still, J.C., 1995, Mineral investigations in the Ketchikan mining district, southeastern Alaska: U.S. Bureau of Mines Open-File Report 11-95, 606 p. Maas, K. M., Still, J. C., Clough, A. H., and Oliver, L. K., 1991, Mineral investigations in the Ketchikan mining district, Alaska, 1990: Southern Prince of Wales Island and vicinity--Preliminary sample location maps and descriptions: U.S. Bureau of Mines Open-File Report 33-91, 139 p.
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New Locality Added: Sheppard occurrence, Barrie Township, Frontenac Co., Ontario, CanadaFrom Reiner Mielke, 23rd Oct 2014 00:47:15