|Quadrangle map, 1:250,000-scale||CR|
|Quadrangle map, 1:63,360-scale||A-3|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This prospect is near the point south of the mouth of Deer Bay. It is near the northeast corner of section 1, T. 77 S., R. 84 E.|
Geologic descriptionThere is an old adit less than 20 feet long at this prospect but there is no record of who did the work or when it was done, nor is there any record of production (Herreid and others, 1978; Maas and others, 1991, 1995). The rocks in the area consist of quartz-sericite-chlorite schists, pyroclastic breccia, and metabasite. Locally there are quartz veins parallel to the layering. Herreid and others (1978) collected a sample of pyrite-quartz-sericite schist that contained 20 parts per million (ppm) gold and 90 ppm lead. A table in their report also lists niobium, but they do not give a value for it in their description of the sample nor are significant amounts of niobium likely in this geologic environment. Maas and others (1991) collected 8 samples; their highest value was 210 parts per billion gold and 1.6 ppm silver.
|Geologic map unit||(-132.675513718709, 55.2289189152787)|
|Mineral deposit model||Insufficient evidence to determine.|
|Workings or exploration||Explored by an old adit less than 20 feet long; sampled by several government agencies.|
|Indication of production||None|
Additional commentsThis prospect is on land that has been conveyed to the Sealaska Corporation, who hold the surface and subsurface rights, or the land is under application for transfer to them.
Herreid, Gordon, Bundtzen, T.K., and Turner, D.L., 1978, Geology and geochemistry of the Craig A-2 quadrangle, Prince of Wales Island, southeastern Alaska: Alaska Division of Geological and Geophysical Surveys Geologic Report 48, 49 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.
|Reporters||D.J. Grybeck (Applied Geology)|
|Last report date||5/1/2004|