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  3. Alaska Resource Data File (ARDF)

Unnamed (west of Broxson Gulch)

Occurrence, Active

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Commodities and mineralogy

Main commodities Au
Ore minerals pyrite

Geographic location

Quadrangle map, 1:250,000-scale MH
Quadrangle map, 1:63,360-scale B-5
Latitude 63.304
Longitude -146.1916
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is at an elevation of about 4,000 feet in the headwaters of an east-flowing tributary to the stream(s) in Broxson Gulch and in the NE1/4NW1/4 section 3, T. 19 S., R. 8 E., Fairbanks Meridian. The occurrence corresponds to locality 44 in table 2 of Nokleberg and others (1991).

Geologic setting

Geologic description

This occurrence is in a pyritic dacite porphyry unit of the Slana Spur Formation of Late Paleozoic age (Nokleberg and others, 1991). The dacite forms sills and stocks. Grab sample 79NK037 of the pyritic rock assayed 0.10 parts per million gold (Nokleberg and others, table 2, locality 44).
Geologic map unit (-146.193863254137, 63.3035776880204)
Age of mineralization Pennsylvanian and (or) Permian (?), the age of the host rock.
Alteration of deposit Pyritization of host rock.

Production and reserves

Workings or exploration The occurrence is on active MAN Resources claims.
Indication of production None

References

References

Nokleberg, W.J., Lange, I.M., Roback, R.C., Yeend, Warren, and Silva, S.R., 1991, Map showing locations of metalliferous lode and placer mineral occurrences, mineral deposits, prospects, and mines, Mount Hayes quadrangle, eastern Alaska Range, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1996-C, 42 p., 1 sheet, scale 1:250,000.
Reporters W.T. Ellis (Alaska Earth Science), C.C. Hawley (Hawley Resource Group), and W.J. Nokleberg (USGS)
Last report date 6/18/2001