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Unnamed Occurrence (ARDF - HE164; near VABM Way), Valdez Creek Mining District, Matanuska-Susitna Borough, Alaska, USAi
Regional Level Types
Unnamed Occurrence (ARDF - HE164; near VABM Way)- not defined -
Valdez Creek Mining DistrictMining District
Matanuska-Susitna BoroughBorough
AlaskaState
USACountry

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Latitude & Longitude (WGS84):
63° 2' 2'' North , 147° 38' 24'' West
Latitude & Longitude (decimal):
63.03389,-147.64000
GeoHash:
G#: bepn86gz4
GRN:
N43W49
Köppen climate type:
Dfc : Subarctic climate
Mindat Locality ID:
200780
Long-form identifier:
mindat:1:2:200780:2
GUID (UUID V4):
0


Location: This occurence is at an elevation of approximately 5,000 feet, 0.6 mile NW of VABM Way and about 2 miles south of Butte Creek. The site is in sec. 6, T. 22 S., R. 1 E., of the Fairbanks Meridian. The location is accurate to within 1000 feet. This is location 37 of Clark and Cobb (1972).
Geology: This occurrence is hosted in Middle Triassic to Upper Pennsylvanian metasedimentary rocks, cut by numerous diabasic and gabbroic dikes and sills (Wilson and others, 1998). The deposit consists of copper sulfides disseminated in the mafic units, and of magnetite along fault zones separating limestone and argillite. The sulfide minerals are bornite, chalcopyrite, and pyrite. Malachite and azurite occur in cross-cutting carbonate veins. Some of the sulfide minerals probably are syngenetic with emplacement of their Upper Paleozoic or Triassic mafic hostrocks. The bornite may represent subsequent supergene enrichment.
Workings: Surface workings and exploration only.
Age: Some of the sulfide minerals probably are syngenetic with their Upper Paleozoic Triassic mafic host rocks. The bornite may represent subsequent supergene enrichment.

Commodities (Major) - Cu, Fe
Development Status: None
Deposit Model: Cyprus massive sulfide (Cox and Singer, 1986; model 24a)

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


8 valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘBornite2.BA.15Cu5FeS4
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘAzurite5.BA.05Cu3(CO3)2(OH)2
ⓘMalachite5.BA.10Cu2(CO3)(OH)2

List of minerals for each chemical element

HHydrogen
Hⓘ AzuriteCu3(CO3)2(OH)2
Hⓘ MalachiteCu2(CO3)(OH)2
CCarbon
Cⓘ AzuriteCu3(CO3)2(OH)2
Cⓘ CalciteCaCO3
Cⓘ MalachiteCu2(CO3)(OH)2
OOxygen
Oⓘ AzuriteCu3(CO3)2(OH)2
Oⓘ CalciteCaCO3
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ QuartzSiO2
SiSilicon
Siⓘ QuartzSiO2
SSulfur
Sⓘ BorniteCu5FeS4
Sⓘ ChalcopyriteCuFeS2
Sⓘ PyriteFeS2
CaCalcium
Caⓘ CalciteCaCO3
FeIron
Feⓘ BorniteCu5FeS4
Feⓘ ChalcopyriteCuFeS2
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ PyriteFeS2
CuCopper
Cuⓘ AzuriteCu3(CO3)2(OH)2
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ MalachiteCu2(CO3)(OH)2

Other Databases

Link to USGS - Alaska:HE164

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

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

Berg, H.C., and Cobb, E.H., 1967, Metalliferous lode deposits of Alaska: U.S. Geological Survey Bulletin 1246, 254 p. Clark, A.L., and Cobb, E.H., 1972, Metallic mineral resources map of the Healy quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-394, 1 sheet, scale 1:250,000. Kaufman, M.A., 1964, Geology and mineral deposits of the Denali-Maclaren River area, Alaska: Alaska Division of Mines and Minerals Geologic Report 4, 15 p., 1 sheet, scale 1:105,000. Moffit, F.H., 1912, Headwater regions of Gulkana and Susitna Rivers, Alaska: U.S. Geological Survey Bulletin 498, 82 p. Moffit, F.H., 1914, Preliminary report on the Broad Pass region: U.S. Geological Survey Bulletin 592-H, p. 301-305. Moffit, F.H., 1915, Broad Pass region, Alaska, with sections on Quaternary deposits, igneous rocks, glaciations By J.E. Pogue: U.S. Geological Survey Bulletin 608, 80 p. Saunders, R.H., 1961, Susitna-MacClaren area: Alaska Division of Mines and Mineral Report for the year 1961, 40 p. Wilson, F.H., Dover, J.H., Bradley, D.C., Weber, F.R., Bundtzen, T.K., and Haeussler, P.J., 1998, Geologic map of central (interior) Alaska: U.S. Geological Survey Open-File Report 98-133, 76 p., 3 sheets, scale 1:500,000.
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