|Quadrangle map, 1:250,000-scale||LH|
|Quadrangle map, 1:63,360-scale||A-1|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is on the west side of a south tributary valley to the upper Another River. It is about 3.8 miles southeast of Merrill Pass and 2.8 miles northwest of The Tusk. The map site is at an elevation of about 3,600 feet, in the NW1/4 section 7, T 12 N, R 22 W, of the Seward Meridian. This occurrence was included by Cobb and Reed (1981) under the name Another R. It is approximately located, perhaps within a mile.|
Geologic descriptionCobb and Reed (1981) reported that molybdenite- and pyrite-bearing quartz veins are present in Tertiary granitic rocks at this locality. Galena- and sphalerite-bearing veins are also present nearby. The veins are disseminated and appear to be associated with quartz monzonite and in adjacent fractured quartz diorite. Samples of veins contain as much as 3 ounces of silver per ton (Resource Associates of Alaska, unpublished data, 1976).
|Geologic map unit||(-153.25012888955, 61.1495651890996)|
|Mineral deposit model||Porphyry Mo, low-F? (Cox and Singer, 1986, model 21b)|
|Mineral deposit model number||21b|
|Age of mineralization||Tertiary. Sulfide-bearing quartz veins crosscut Tertiary granitic rocks.|
|Alteration of deposit||Silicification.|
|Workings or exploration||Reconnaissance sampling has been completed in this area.|
|Indication of production||None|
Additional commentsThis occurrence is within Lake Clark National Preserve.
Cobb, E.H., and Reed, B.L., 1981, Summaries of data on and lists of references to metallic and selected nonmetallic mineral occurrences in the Iliamna, Lake Clark, Lime Hills, and McGrath quadrangles, Alaska; Supplement to Open-File Report 76-485; Part A, Summaries to January 1, 1981: U.S. Geological Survey Open-File Report 81-1343-A, 25 p.
Resource Associates of Alaska, Inc., 1976, Geology and geochemistry of certain land within the Lake Clark National Park: Contract report for U.S. Bureau of Mines, Contract JO166108, 7 v.
|Reporters||Travis L. Hudson and Madelyn A. Millholland|
|Last report date||6/10/2001|