|Quadrangle map, 1:250,000-scale||CR|
|Quadrangle map, 1:63,360-scale||A-1|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This prospect is about 0.3 mile west of lower Dolomi Bay and about 0.4 mile north-northeast of the center of section 7, T. 78 S., R. 89 E.|
Geologic descriptionAs described by Maas and others (1991, 1995), the Stockton Quartz prospect has a flooded shaft with a small dump. The rocks on the dump consist of quartz and blocks of greenstone. Two samples contained 9 and 20 parts per billion gold. Herreid (1967) maps the rocks near the prospect as part of a band of greenschist in the Wales Group of Late Proterozoic and Cambrian age. The Wales Group rocks rocks in the Dolomi area are folded into a large dome centered over the eastern third of Paul Lake, and consist of several marble layers 200 to 1300 feet thick, interbedded with calcareous chlorite schist and marble.
|Geologic map unit||(-132.058119515465, 55.1263441103323)|
|Mineral deposit model||Probably a low-sulfide, brecciated gold-quartz vein (Cox and Singer, 1986; model 36a).|
|Mineral deposit model number||36a|
|Age of mineralization||The deposit is younger than the Late Proterozoic or Cambrian host rocks.|
|Workings or exploration||The only evidence of workings is a flooded shaft and a small dump. The prospect is on a patented claim.|
|Indication of production||None|
Herreid, Gordon, 1967, Geology and mineral deposits of the Dolomi area, Prince of Wales Island, Alaska: Alaska Division of Mines and Minerals Geologic Report 27, 17 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|