This property lies on Doyon Ltd. selected land. For more information, contact Doyon Ltd. This property may be the same as the Hajdukovich molybdenum prospect reported by Saunders (1967), or very close to it.
Location: The Bush prospect encompasses the area around and to the east of Bush Mountain, in sections 25, 30, 31, and 36, T. 20 N., R. 14 E., of the Copper River Meridian. The prospect covers an area of about 3 square miles, and coordinates given correspond to the approximate center. The location is accurate.
Geology: Geology in the immediate vicinity of the Bush prospect consists of one rhyolite and two porphyritic latite units intruding Precambrian to Paleozoic amphibolite-grade schist (Foster, 1976, Doyon Ltd., 1998). The rhyolite is highly siliceous and iron stained along fracture surfaces; hematite and pyrite are common trace accessory minerals. One porphyritic latite unit is light green and contains trace amounts of pyrite; the other unit lacks pyrite and is a darker green (Dashevsky, 1982). The region where the prospect is located lies within the Yukon-Tanana Y1 subterrane (Foster, 1970; Foster and others,1994). During soil sampling programs, low levels of lead and molybdenum were identified (Doyon Ltd., 1998).
Workings: In 1979, WGM Inc. analyzed the ridgetop soils, and in 1981 Arctic Resources Inc. conducted soil sampling on a grid. In 1982, Doyon Ltd. conducted prospecting traverses on the property.
Age: If the Bush prospect represents a porphyry Mo occurrence, its age is probably Late Cretaceous to early Tertiary, since there are other porphyry Mo deposits in the area of that age (Mosquito: TC015).

Commodities (Major) - Mo, Pb
Development Status: None
Deposit Model: Porphyry Mo? (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.

ⓘ Lead

ⓘ Molybdenum

Mineral List

ⓘ Hematite

ⓘ Pyrite

2 valid minerals.

Detailed Mineral List:

ⓘ Hematite

Formula: Fe₂O₃

References:

(2008) Alaska Resource Data File (ARDF) Open-File Report 2008-1225. US Geological Survey

ⓘ Pyrite

Formula: FeS₂

References:

(2008) Alaska Resource Data File (ARDF) Open-File Report 2008-1225. US Geological Survey

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘ	Pyrite	2.EB.05a	FeS₂
Group 4 - Oxides and Hydroxides
ⓘ	Hematite	4.CB.05	Fe₂O₃

List of minerals for each chemical element

O	Oxygen
O	ⓘ Hematite	Fe₂O₃
S	Sulfur
S	ⓘ Pyrite	FeS₂
Fe	Iron
Fe	ⓘ Hematite	Fe₂O₃
Fe	ⓘ Pyrite	FeS₂

Other Databases

Link to USGS - Alaska:	TC006

Other Regions, Features and Areas containing this locality

North AmericaContinent

North America PlateTectonic Plate

North America PlatformPassive Margin
Yukon-Tanana lower DomainDomain

USA

Alaska
- Fortymile Mining DistrictMining District

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

Dashevsky, S.S., 1982, Doyon exploration program, block 8--Fortymile, 1982: Fairbanks, Alaska, 109 p. (Report held by Doyon Limited, Fairbanks, Alaska.) Doyon, Limited, 1998, Veta Prospects 1997 Volume 1: Doyon, Limited, unpublished report 98-10, 256 p. (Report held by Doyon, Limited, Fairbanks, Alaska.) Foster, H.L., 1970, Reconnaissance geologic map of the Tanacross quadrangle, Alaska: U.S. Geological Survey Miscellaneous Geological Investigations Map I-593, 1 sheet, scale 1:250,000. Foster, H.L., Keith, T.E C., and Menzie, W.D., 1994, Geology of the Yukon-Tanana area of East-Central Alaska, in Plafker, G., and Berg, H.C., eds., The geology of Alaska: Geological Society of America, DNAG, The geology of North America, vol. G-1, p. 205-240. Saunders, R.H., 1967, Mineral occurences in the Yukon-Tanana region, Alaska: Alaska Division of Mines and Minerals Special Report 2, 58 p., 2 sheets, scale 1:1,000,000.

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