Unnamed ( on hill 1677)

Occurrence, Probably inactive

Commodities and mineralogy

Main commodities Cu
Other commodities Ag; Pb
Ore minerals chalcopyrite; pyrite

Geographic location

Quadrangle map, 1:250,000-scale NL
Quadrangle map, 1:63,360-scale A-4
Latitude 64.21
Longitude -157.83
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is on hill 1677 in the southern Kaiyuh Mountains, approximately 4.5 kilometers north-northeast of the top of Khotol Mountain. The location is accurate within 1.5 kilometers.

Geologic setting

Geologic description

This occurrence is in garnet-quartz-chlorite-muscovite schist and consists of sparse gossan float, disseminated pyrite in the schist, and chalcopyrite in siliceous hornfels (skarn?). Six rock samples contained up to 1510 ppm copper, 85 ppm lead, 1.1 ppm silver, and 210 ppm arsenic (Flanigan, 1998). Flanigan interprets the Aladdin deposit to be related to magmatic fluids from the Khotol pluton, based on its proximity to the pluton and its low molybdenum content . K-Ar and Ar/Ar dates for the Khotol pluton are approximately 110 Ma (Flanigan, 1998).
Also see NL012-014, 016, and 019-022.
Geologic map unit (-157.832446963087, 64.2093476279511)
Mineral deposit model Cu-Au skarn? (Cox and Singer, 1986; model 18b)
Mineral deposit model number 18b?
Age of mineralization Flanigan (1998) interprets the Aladdin deposit to be related to magmatic fluids from the Khotol pluton, based on its proximity to the pluton and its low molybdenum content . K-Ar and Ar/Ar dates for the Khotol pluton are approximately 110 Ma (Flanigan, 1998).
Alteration of deposit Hornfels and skarn (?) are present at this occurrence.

Production and reserves

Workings or exploration This occurrence was discovered by Anaconda Minerals Company in 1980 or 1982 (Flanigan, 1998).
Indication of production None

References

MRDS Number 10307894

References

Flanigan, B., 1998, Genesis and mineralization of ore deposits in the Illinois Creek region, west central Alaska: University of Alaska, Fairbanks, M.Sc. thesis, 125 p., 2 plates.
Reporters C.E. Cameron (Northern Associates Inc.)
Last report date 8/7/2001