Unnamed (northwest of VABM Kluklaklatna)

Occurrence in Alaska, United States with commodities Copper, Tungsten, Gold

Geologic information

Identification information

Deposit ID 10307893
Record type Site
Current site name Unnamed (northwest of VABM Kluklaklatna)

Geographic coordinates

Geographic coordinates: -158.00311, 64.19944 (WGS84)
Relative position This occurrence is located approximately 2 miles west-northwest of VABM Kluklaklatna (spelled Kluklakatna on Nulato 1:250,000-scale quadrangle map), in the southern Kaiyuh Mountains. It is in the NW1/4 sec. 36, T. 14 S., R. 4 E., Kateel River Meridian. The location is accurate within 5 miles.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary
Tungsten Primary
Gold Secondary

Materials information

Materials Type of material
Pyrrhotite Ore
Scheelite Ore
Quartz Gangue
Tourmaline Gangue

Alteration

  • (Local) Quartz-tourmaline veins occur in hornfelsed schist near the Khotol Pluton.

Nearby scientific data

(1) -158.00311, 64.19944

Comments on the geologic information

  • Geologic Description = This float occurrence consists of limonitic quartz and tourmaline veins in schist, enclosed in pyrrhotite-andalusite hornfels near the Khotol Pluton. The veins(?) also contain sparse, large euhedral crystals of scheelite. Nine rock samples contained up to 238 ppm copper, 45 ppb gold, and 315 ppm tungsten (Flanigan, 1998). Flanigan interprets this gossan to be related to magmatic fluids from the Khotol pluton, based on its proximity to the Khotol pluton and to its low molybdenum content. The Khotol pluton has been dated at approximately 110 Ma by K/Ar and Ar/Ar methods (Flanigan, 1998). Also see NL012, NL014-016, and NL019-022.
  • Age = Flanigan (1998) interprets this gossan to be related to magmatic fluids from the Khotol pluton, based on its proximity to the Khotol pluton and to its low molybdenum content. The Khotol pluton has been dated at approximately 110 Ma by K/Ar and Ar/Ar methods (Flanigan, 1998).

Economic information

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Probably inactive

Mining district

District name Kaiyuh

Comments on the workings information

  • Workings / Exploration = This occurrence was discovered by Anaconda Minerals Company in 1980 (Flanigan, 1998).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Alaska Resource Data File ARDF NL013

Bibliographic references

  • Deposit

    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.

Comments on the references

  • Primary Reference = Flanigan, 1998

General comments

Subject category Comment text
Deposit Model Name = Plutonic-related Cu-Au-W

Reporter information

Type Date Name Affiliation Comment
Reporter 07-AUG-01 Cameron, C.E. Northern Associates Inc.