Unnamed (upper Kennel Creek)

Occurrence, Undetermined

Commodities and mineralogy

Main commodities Cu; Mo

Geographic location

Quadrangle map, 1:250,000-scale SI
Quadrangle map, 1:63,360-scale D-4
Latitude 57.8829
Longitude -135.2282
Nearby scientific data Find additional scientific data near this location
Location and accuracy This site is a rock pit on a logging road along Kennel Creek, about 3 miles south-southwest of the logging camp on Freshwater Bay. The pit is at an elevation of about 300 feet, 0.6 mile west-northwest of the center of sec. 16, T. 46 S., R. 63 E. It is location P-22 of Bittenbender and others (1999) and MAS no. 0021140308 (U.S. Bureau of Land Management, 2002). The location is accurate.

Geologic setting

Geologic description

This occurrence is near the center of a Jurassic intrusion that consist of quartz monzonite, alaskite, and monzonite, surrounded mainly by the Silurian and/or Devonian Kennel Creel Limestone (Lathram and others, 1965). Maas and others (1996) and Bittenbender and others (1999) have classified this as a porphyry deposit with minor skarn. High grade samples contained up to 0.2 percent molybdenum and 155 parts per million copper.
Geologic map unit (-135.229982506101, 57.8825583450776)
Mineral deposit model Molybdenum porphyry.
Age of mineralization Jurassic or younger based on the age of the host rocks.
Alteration of deposit Formation of skarn.

Production and reserves

Workings or exploration Apparently only sampling by government geologists.
Indication of production None

References

References

Bittenbender, P., Still, J.C., Maas, K., and McDonald, M., Jr., 1999, Mineral resources of the Chichagof and Baranof Islands area, southeast Alaska: Bureau of Land Management, BLM-Alaska Technical Report 19, 222 p.
Maas, K.M., Bittenbender, P.E., and Still, J.C., 1996, Mineral investigations on Baranof and Chichagof Islands and vicinity, southeast Alaska, 1995: U. S. Bureau of Land Management Alaska Open- File Report 60, 112 p.
U.S. Bureau of Land Management, 2002, Alaska mineral locations database report (Sitka quadrangle), July 2, 2002, 205 p. [http://imcg.wr.usgs.gov/dem.html]
Reporters Donald Grybeck (U.S. Geological Survey)
Last report date 5/5/2005