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Unnamed Occurrence (ARDF - TK057; east-southeast of hill 6575), Yentna Mining District, Matanuska-Susitna Borough, Alaska, USAi
Regional Level Types
Unnamed Occurrence (ARDF - TK057; east-southeast of hill 6575)- not defined -
Yentna Mining DistrictMining District
Matanuska-Susitna BoroughBorough
AlaskaState
USACountry

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Latitude & Longitude (WGS84):
62° 29' 6'' North , 148° 28' 1'' West
Latitude & Longitude (decimal):
Köppen climate type:
Mindat Locality ID:
201793
Long-form identifier:
mindat:1:2:201793:1
GUID (UUID V4):
012841a8-2930-4d47-97aa-70453029334f


Location: This occurrence is at an elevation of about 5,000 feet, 0.5 mile east-southeast of the top of hill 6575. The occurrence is in the SW1/4NW1/4 sec. 10, T. 28 N., R. 5 E., Seward Meridian. The location is accurate to within 1/4-mile. This is locality 52 of Csejtey and Miller (1978).
Geology: This occurrence consists of small amounts of chalcopyrite and pyrrhotite in quartz veinlets or as disseminations in highly iron-stained Triassic(?) metagabbro (Rose, 1967). A lode claim covers the prospect.
Workings: Only limited surface sampling (Anderson, 1969).
Alteration: Conspicuous iron-oxide alteration.

Commodities (Major) - Cu; (Minor) - Ag
Development Status: None
Deposit Model: Basaltic Cu? (Cox and Singer, 1986; model 23?)

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
Pyrrhotite2.CC.10Fe1-xS
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2

List of minerals for each chemical element

OOxygen
O QuartzSiO2
SiSilicon
Si QuartzSiO2
SSulfur
S ChalcopyriteCuFeS2
S PyrrhotiteFe1-xS
FeIron
Fe ChalcopyriteCuFeS2
Fe PyrrhotiteFe1-xS
CuCopper
Cu ChalcopyriteCuFeS2

Other Databases

Link to USGS - Alaska:TK057

Other Regions, Features and Areas containing this locality


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

Anderson, R.E., 1969, Preliminary geochemistry and geology of the Little Falls Creek area, Talkeetna Mountains quadrangle, Alaska: Alaska Division of Mines and Geology Geochemical Report 19, 16 p., 1 plate, scale 1:45,000. Cobb, E.H., 1972, Metallic mineral resources map of the Talkeetna Mountains quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-370, 1 sheet, scale 1:250,000. Cobb, E.H., and Csejtey, Bela, Jr., 1980, Summaries of data on and lists of references to metallic and selected nonmetallic mineral deposits in the Talkeetna Mountains quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-716, 63 p. Csejtey, Bela, Jr., and Miller, R.J., 1978, Map and table describing metalliferous and selected nonmetalliferous mineral deposits in the Talkeetna Mountains quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-558-B, 22 p., 1 sheet, scale 1:250,000. Csejtey, Bela, Jr., Nelson, W.H., Jones, D.L., Silberling, N.J., Dean, R.M., Morris, M.S., Lanphere, M.A., Smith, J.G., and Silberman, M.L, 1978, Reconnaissance geologic map and geochronology, Talkeetna Mountains quadrangle, northern part of Anchorage quadrangle, and southwest part of Healy quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-558-A, 60 p., 1 sheet, scale 1:250,000. MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000. Rose, A.W., 1967, Geology of an area on the upper Talkeetna River, Talkeetna Mountains quadrangle, Alaska: Alaska Division of Mines and Minerals Geologic Report 32, 7 p., 1 plate, 1:63,360. Singer, D.A., Csejtey, Bela, Jr., and Miller, R.J., 1978, Map and discussion of the metalliferous and selected non-metalliferous mineral resources of the Talkeetna Mountains quadrangle, Alaska: U.S. Geological Survey Open-file Report 78-588-Q,
 
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