Pass Lake Occurrence, Redoubt Mining District, Kenai Peninsula Borough, Alaska, USAi

Regional Level Types
Pass Lake Occurrence	Occurrence
Redoubt Mining District	Mining District
Kenai Peninsula Borough	Borough
Alaska	State
USA	Country

This occurrence is within Lake Clark National Park.
Location: This occurrence is at the toe of a glacier in small south tributary valley to the upper Chilligan River. It is at an elevation of about 4,800 feet, 0.4 mile southwest of peak 6017. The map site is in the SW/4 section 9, T 15 N, R22 W, of the Seward Meridian. It is locality 16 of MacKevett and Holloway (1977), locality 40 of Gamble and others (1989), and it is included under the name Pass Lake by Cobb and Reed (1981). It is approximately located, perhaps within one-half mile.
Geology: This occurrence represents an approximately 5-square-mile area of local base metal geochemical anomalies (Resource Associates of Alaska, 1976). At the map site, Tertiary biotite granite float containing disseminated molybdenite assayed 960 ppm molybdenum. Tertiary granite throughout the area locally contains molybdenite, pyrite, and pyrrhotite, and, less commonly, chalcopyrite and sphalerite. At least some of the mineralization is probably in quartz veins.
Workings: Reconnaissance surface observation and sampling has been completed in this area.
Age: Tertiary. Sulfide mineralization is in Tertiary granitic rocks.
Alteration: Quartz veining(?).

Commodities (Major) - Cu, Mo, Zn
Development Status: None
Deposit Model: Porphyry Cu-Mo (Cox and Singer, 1986, model 21a)

Other Databases

Link to USGS - Alaska:	LH030

Other Regions, Features and Areas containing this locality

References