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Unnamed Occurrences (ARDF - CR115), Natzuhini Bay, Prince of Wales Island, Ketchikan District, Prince of Wales-Outer Ketchikan Borough, Alaska, USA
Latitude: 55°17'23"N
Longitude: 132°48'43"W
Longitude: 132°48'43"W
Location: This occurrence is in a borrow pit about 0.8 mile northeast of the head of Natzuhini Bay. It is about 0.5 mile southwest of the center of section 9, T. 76 S., R. 83 E.
Geology: At this site, two samples from an outcrop in a borrow pit contained 1,034 and 3,813 parts per million copper (Hedderly-Smith, 1999 [Inventory]). The rocks in the pit consist of chlorite-sericite schist with disseminated pyrite and chalcopyrite; they are part of the Wales Group of Cambrian and older age. Hedderly-Smith also cites a report from workers at a nearby logging camp of a 'copper vein' on a road about 1,200 feet or more to the south. The vein is said to be 4 to 6 inches thick and stained with malachite and azurite.
Workings: Only sampling in a borrow pit.
Age: Unknown other than that the occurrence is in rocks of the Wales Group of Late Proterozoic and Cambrian age.
Commodities (Major) - Cu
Development Status: None
Mineral List
| Azurite | Chalcopyrite | Malachite |
3 entries listed. 3 valid minerals.
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References
Hedderly-Smith, D.A., 1990, Report of the 1989 field season - Sealaska Mineral Reconnaissance Project: Sealaska Corporation, 58 p. (Unpublished report held by the Sealaska Corporation, Juneau, Alaska.) 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).
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