Campbell Prospect, Mount Jumbo, Prince of Wales Island, Ketchikan District, Prince of Wales-Outer Ketchikan Borough, Alaska, USA
The Campbell prospect is on or surrounded by lands that have been conveyed to the Sealaska Corporation, who hold the surface and subsurface rights, or the land is under application for transfer to them.
Location: The Campbell prospect is about 1.4 mile northwest of Mount Jumbo and about 0.3 mile east-southeast of the center of section 21, T. 76 S., R. 84 E.
Geology: The Campbell prospect is in skarn near the contact of a small Cretaceous granodiorite stock that intrudes marble of the Wales Group of Late Proterozoic and Cambrian age (Herreid and others, 1978). The deposit consists of small, pyrrhotite-rich pods with chalcopyrite in the skarn. One sample contained 1,380 parts per million (ppm) copper, 20 ppm lead, 175 ppm zinc, 1.5 ppm silver, and a trace of gold. The prospect was explored by a 50-foot adit.
Workings: The only working consists of a 50-foot adit.
Age: Probably related to a nearby Cretaceous granodiorite intrusion.
Alteration: Deposit probably is genetically related to the skarn host rock.
Commodities (Major) - Ag, Cu, Zn; (Minor) - Au, Pb
Development Status: None
Deposit Model: Copper skarn (Cox and Singer, 1986; model 18b).
| Chalcopyrite|| Pyrrhotite|
2 entries listed. 2 valid minerals.
The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
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.
This page is currently not sponsored. To sponsor this page click here.
|Fade toolbar when not in focus||Fix toolbar to bottom of page|
|Hide Social Media Links|
|Slideshow frame delay||seconds|
Locality Updated: Estremoz, Évora District, PortugalFrom Rui Nunes, 24th Apr 2014 10:36:34