|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 occurrence is on the west coast of Goat Island about 0.3 mile east-southeast of triangulation station Timmy. It is about 0.5 mile northwest of the southeast corner of section 8, T. 77 S., R. 83 E., of the Copper River Meridian.|
Geologic descriptionThis occurrence was discovered during a search for the source of a gold geochemical anomaly (Maas and others, 1991; Hedderly-Smith, 1999 [Inventory]). The rocks in the vicinity consist of argillite with subordinate volcanic flows, agglomerate, and chert. The argillite is locally silicified and contains small pods of massive pyrite. A sample from a quartz stockwork with 50 percent pyrite and intense hematite and limonite staining contained 0.564 parts per million (ppm) gold and 2.0 ppm silver (Maas and others, 1991).
|Geologic map unit||(-132.936624733642, 55.2027037340302)|
|Mineral deposit model||Insufficient evidence.|
|Alteration of deposit||A sample from a quartz stockwork with 50 percent pyrite has intense hematite and limonite staining.|
|Workings or exploration||Only surface sampling by government agency.|
|Indication of production||None|
Hedderly-Smith, D.A., 1999, Inventory of metallic mineral prospects, showings and anomalies on Sealaska lands, 1988 through 1998: Sealaska Corporation, Juneau, Alaska, 217 p. (internal report held by Sealaska Corporation, Juneau, Alaska).
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|