Upper Tazimina Occurrence, Bristol Bay Mining District, Lake and Peninsula Borough, Alaska, USAi

Regional Level Types
Upper Tazimina Occurrence	Occurrence
Bristol Bay Mining District	Mining District
Lake and Peninsula Borough	Borough
Alaska	State
USA	Country

Mineralization very sparse. Site is in Lake Clark National Park and Preserve.
Location: Locality is approximately 4 km S-SW of the mouth of Ospook Creek. This is locality 36 of Nelson and others (1985) and locality 35 of MacKevett and Holloway (1977). NE1/4 sec. 9, T. 1 S., R. 27 W., of the Seward Meridian. Location is accurate within 800 m.
Geology: Occurrence is a very small area of strong epidote - quartz - magnetite - chalcopyrite veining within 0.9 m of the contact of Tertiary andesite porphyry breccia with fine-grained metasedimentary rocks. Resource Associates of Alaska (1976) report two rock samples taken near the metasediment-volcanic contact yielded values as high as 11.2 ppm Ag, 1,100 ppm Cu, 180 ppm Pb, and 680 ppm Zn. One nearby stream sediment sample showed slight anomaly (109 ppm Cu). However, these results could not be reproduced by Nelson and others (1985).
Workings: Resource Associates of Alaska (1976) report two rock samples taken near the metasediment-volcanic contact yielded values as high as 11.2 ppm Ag, 1,100 ppm Cu, 180 ppm Pb, and 680 ppm Zn. One nearby stream sediment sample showed slight anomaly (109 ppm Cu). However, these results could not be reproduced by Nelson and others (1985).
Age: Tertiary or younger, based on geologic relationships.
Alteration: Unknown
Production: No production
Reserves: No reserves

Commodities (Major) - Cu; (Minor) - Ag, Pb, Zn
Development Status: None
Deposit Model: Cu skarn (Cox and Singer, 1986; model 18b)

Other Databases

Link to USGS - Alaska:	LC051

Other Regions, Features and Areas containing this locality

References