|Quadrangle map, 1:250,000-scale||RM|
|Quadrangle map, 1:63,360-scale||A-4|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is on a small knob at an elevation of about 700 feet in the NW1/4 sec. 5, T. 11 N., R. 61 W., of the Seward Meridian. It is about 1,500 feet northwest of a saddle having an elevation of 685 feet.|
Geologic descriptionThis occurrence consists of an epithermal hot spring deposit containing carbonized fossil plant fragments preserved in siliceous cap rock. Grab samples of the deposit contain as much as 0.24 ppm gold, 1.8 ppm silver, 3 ppm mercury, and 380 ppm lead. The country rocks are largely Jurassic volcanic rocks (Box and others, 1993).
|Geologic map unit||(-160.151307042929, 61.0772665802986)|
|Mineral deposit model||Hot spring Au-Ag? (Cox and Singer, 1986; model 25a)|
|Mineral deposit model number||25a?|
|Age of mineralization||Tertiary? The preservation of a surface hot spring deposit containing plant fragments suggests that they are Tertiary in age.|
|Workings or exploration||No workings are present. Only reconnaissance surface geochemical sampling of this occurrence has been completed.|
|Indication of production||None|
Additional commentsThis description is from unpublished field notes (station number 92AM25) of M.L. Miller, U.S. Geological Survey, Anchorage, Alaska.
|Reporters||Travis L. Hudson and Madelyn A. Millholland|
|Last report date||6/10/2001|