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Pushbush Prospect, Southeast Fairbanks Census Area, Alaska, USAi
Regional Level Types
Pushbush ProspectProspect
Southeast Fairbanks Census AreaCensus Area
AlaskaState
USACountry

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Latitude & Longitude (WGS84):
63° 31' 11'' North , 141° 19' 12'' West
Latitude & Longitude (decimal):
63.51972,-141.32000
GeoHash:
G#: bg7925mvj
GRN:
N43W47
Type:
Prospect
Köppen climate type:
Dfc : Subarctic climate
Mindat Locality ID:
199520
Long-form identifier:
mindat:1:2:199520:9
GUID (UUID V4):
0


See also: Taurus (TC027) and ASARCO (TC001) prospects.
Location: The Pushbush prospect is located in the SE 1/4 section 11, T. 20 N., R. 21 E., of the Copper River Meridian. It is location 11 of Singer and others (1976), and location 13 of Eberlein and others (1977). It is just north of the Big Creek prospect (TC004). The location is accurate to within 1 mile.
Geology: The Pushbush prospect consists of disseminated pyrite, chalcopyrite, and molybdenite in Tertiary mafic and felsic volcanic rocks, biotite gneiss, and schist. The schist is likely Paleozoic and/or Precambrian in age, and has undergone amphibolite facies metamorphism (Foster and Keith, 1994). The extent of mineralization is unknown. The deposit has been trenched, but two diamond drill holes in the 1970's did not encounter mineralization (Eberlein and others, 1977, p. 102). Secondary biotite gave a K-Ar age of 56 +/- 2 Ma (Sinclair, 1986).
Workings: Explored by trenches, and two drill holes.
Age: Secondary biotite gave a K-Ar age of 56 +/- 2 Ma (Sinclair, 1986).

Commodities (Major) - Cu, Mo
Development Status: None
Deposit Model: Porphyry Cu-Mo deposit (Cox and Singer, 1986; model 21a)

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


3 valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘMolybdenite2.EA.30MoS2
ⓘPyrite2.EB.05aFeS2

List of minerals for each chemical element

SSulfur
Sⓘ ChalcopyriteCuFeS2
Sⓘ MolybdeniteMoS2
Sⓘ PyriteFeS2
FeIron
Feⓘ ChalcopyriteCuFeS2
Feⓘ PyriteFeS2
CuCopper
Cuⓘ ChalcopyriteCuFeS2
MoMolybdenum
Moⓘ MolybdeniteMoS2

Other Databases

Link to USGS - Alaska:TC024

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Cobb, E.H., and Eberlein, G.D., 1980, Summaries of data on and lists of references to metallic and selected nonmetallic mineral deposits in the Big Delta and Tanacross quadrangles, Alaska: U.S. Geological Survey Open-File Report 80-1086, 77 p. Eberlein, G.D., Chapman, R.M., Foster, H.L., and Gassaway, J.S., 1977, Map and table describing known metalliferous and selected nonmetalliferous mineral deposits in central Alaska: U.S. Geological Survey Open-File Report 77-168-D, 132 p., 1 sheet, scale 1:1,000,000. Foster, H.L., and Keith, T.E.C., 1994, Geology of the Yukon-Tanana area of east-central Alaska: in Plafker, G. and Berg, H.C., eds, The geology of North America, vol. G-1, The geology of Alaska: Geological Society of America, p. 205-240. Sinclair, W.D., 1986, Molybdenum, tungsten, and tin deposits and associated granitoid intrusions in the northern Canadian cordillera and adjacent parts of Alaska, in Morin, J.A., ed., Mineral deposits of the northern cordillera: Canadian Institute of Mining and Metallurgy, Special Volume 37, p. 216-233. Singer, D.A., Curtin, G.C., and Foster, H.L., 1976, Mineral resources map of the Tanacross quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-767-E, 1 sheet, scale 1:25,000.
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