|Quadrangle map, 1:250,000-scale||LH|
|Quadrangle map, 1:63,360-scale||C-4|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is in a small cirque valley at the head of an unnamed east tributary to the Swift River. It is at elevation of 4,200 feet, 0.5 mile east of peak 5848. The map site is in the SW1/4 section 20, T 17 N, R 27 W, of the Seward Meridian. This is locality 1 of Cobb (1972 [MF 412]; 1976 [OF 76-485]). The location is probably accurate to within a quarter of a mile.|
Geologic descriptionReed and Anderson (1969) reported that biotite granite of the Tired Pup pluton contains abundant accessory allanite and monazite and (or) xenotime. The Tired Pup pluton is a Lower Tertiary pluton of the Alaska-Aleution Range batholith (Reed and Lanphere, 1973).
|Geologic map unit||(-154.22477376498, 61.5463371668032)|
|Mineral deposit model||Disseminated accessory minerals in granite|
|Age of mineralization||Early Tertiary. Several K-Ar ages from the Tired Pup pluton are about 55 to 60 Ma (Reed and Lanphere, 1973).|
|Workings or exploration||Reconnaissance sampling has been completed in this area.|
|Indication of production||None|
Cobb, E.H., 1972, Metallic mineral resources map of the Lime Hills quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-412, 1 sheet, scale 1:250,000.
Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Iliamna, Lake Clark, Lime Hills, and McGrath quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-485, 101 p.
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.
Reed, B.L., and Anderson, L.A., 1969, Aeromagnetic maps of part of the southern Alaska Range: U.S. Geological Survey Open-File Report 69-214, 6 p.
Reed, B.L., and Lanphere, M.A., 1973, Alaska-Aleutian Range batholith--Geochronology, chemistry, and relation to circum-Pacific plutonism: Geological Society of America Bulletin, v. 84, no. 8, p. 2583-2610.
|Reporters||Travis L. Hudson and Madelyn A. Millholland|
|Last report date||6/10/2001|