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Unnamed Occurrence (ARDF - TA009; ridge west of Stevens Creek), Aniak District, Dillingham Borough, Alaska, USA

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Location: Stevens Creek flows northeast from headwaters in the highest part of the Taylor Mountains. This occurrence is on the ridge on the west side of Stevens Creek. The map site is at an elevation of 2,400 feet, in the SE1/4 of section 13, T 10 N, R 46 W, of the Seward Meridian. It is approximately located, perhaps within 1 mile. This occurrence is locality 7 of Cobb (1972 [MF 384]; 1976 [OF 76-606]).
Geology: The core of the Taylor Mountains is an Upper Cretaceous or LowerTertiary granite pluton that sharply crosscuts and thermally metamorphoses mid-Cretaceous clastic sedimentary rocks of the Kuskokwim Group (Cady and others, 1955, p. 83, 121). Quartz veins are common in the pluton near its border and in the contact-metamorphic rocks. Wolframite was identified in vein quartz float that apparently weathered from the contact-metamorphic zone on the ridge west of Stevens Creek.
Age: Late Cretaceous or Early Tertiary, the age of the Taylor Mountain pluton.
Alteration: Hornfels is developed in the country rocks adjacent to the Taylor Mountain pluton. Quartz veining is common in the border of the pluton and in the hornfels.

Commodities (Major) - W
Development Status: None
Deposit Model: Wolframite in quartz veins

Mineral List



2 entries listed. 1 valid mineral.

The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Cady, W.M., Wallace, R.E., Hoare, J.M., and Webber, E.J., 1955, The central Kuskokwim region, Alaska: U.S. Geological Survey Professional Paper 268, 132 p. Cobb, E.H., 1972, Metallic mineral resources map of the Taylor Mountains quadrangle: U.S. Geological Survey Miscellaneous Field Studies Map MF-384, 1 sheet, scale 1:250,000. Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Dillingham, Sleetmute, and Taylor Mountains quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-606, 92 p.

Mineral and/or Locality  
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