|Quadrangle map, 1:250,000-scale||MH|
|Quadrangle map, 1:63,360-scale||A-5|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is at an elevation of 3,500 feet; about one-half mile west of the south end of Landmark Gap Lake. It is at the northwest corner of section 18, T. 21 S., R. 9 E., Fairbanks Meridian. The location is accurate within about 800 feet.|
Geologic descriptionThis prospect is hosted by an Upper Triassic mafic-ultramafic intrusive complex that is comagmatic with the basalt flows of the Nikolai Greenstone (Nokleberg and others, 1991; L. Hulbert, oral communication, 2001). Net-textured to massive pyrrhotite was found in a gabbro sill near the base of the Nikolai Greenstone at this site. There are virtually no base or precious metals associated with the sulfides (L.D. Hulbert, oral communication, 2001).
|Geologic map unit||(-146.110243984323, 63.1014725179824)|
|Mineral deposit model||Ni-Cu-PGE in differentiated mafic-ultramafic sill.|
|Age of mineralization||Late Triassic, the age of the host rock.|
|Workings or exploration||This occurrence is on active MAN Resources claims.|
|Indication of production||None|
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||7/18/2001|