|Quadrangle map, 1:250,000-scale||MH|
|Quadrangle map, 1:63,360-scale||A-4|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is at an elevation of 4,050 feet on the north flank of Paxson Mountain, south of the Denali Highway. It is in the NE1/4NE1/4 section 28, T. 21 S., R. 11 E., Fairbanks Meridian. The occurrence corresponds to locality 7 of Rose and Saunders (1965) and locality S91 in table 2 in Nokleberg and others (1991).|
Geologic descriptionSeveral bornite-bearing quartz veinlets, as much as a half-inch wide, cut purplish vesicular metabasalt at this location (Rose and Saunders, 1965). Some vesicles are filled with opal. Minor amounts of chalcocite accompany the bornite, and both are partly oxidized to malachite and chrysocolla. The host rock is Nikolai Greenstone of Late Triassic age.
|Geologic map unit||(-145.63882808269, 63.072479571486)|
|Mineral deposit model||Basaltic Cu (Cox and Singer, 1986; model 23).|
|Mineral deposit model number||23|
|Age of mineralization||Probably Cretaceous.|
|Alteration of deposit||The metabasalt is altered to chlorite and epidote; copper mineral(s) are oxidized.|
|Indication of production||None|
Additional commentsMineralized float can be traced about 100 feet along the strike of the zone.
Berg, H.C., and Cobb, E.H., 1967, Metalliferous lode deposits of Alaska: U.S. Geological Survey Bulletin 1246, 254 p.
MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.
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||6/18/2002|