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Ely prospect, St. Louis Co., Minnesota, USAi
Regional Level Types
Ely prospectProspect
St. Louis Co.County
MinnesotaState
USACountry

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Key
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Latitude & Longitude (WGS84):
47° 54' 20'' North , 91° 55' 14'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Ely3,408 (2017)4.0km
Winton172 (2017)9.2km
Babbitt1,519 (2017)22.0km
Soudan446 (2017)25.6km
Tower496 (2017)28.6km


Commodities (Major) - Gold; (Minor) - Zinc, Lead, Copper
Development Status: Unknown
Structure: In The Quetico Subprovince Of The Superior Province.
Tectonic Structure: Superior Province, Relatively Undisturbed Archean Craton.

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

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


Mineral List


6 valid minerals.

Detailed Mineral List:

Azurite
Formula: Cu3(CO3)2(OH)2
Reference: Frank Karasti
Chalcocite
Formula: Cu2S
Reference: Frank Karasti
Chalcopyrite
Formula: CuFeS2
Reference: Frank Karasti
Gold
Formula: Au
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Frank Karasti
Quartz
Formula: SiO2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Chalcocite2.BA.05Cu2S
Chalcopyrite2.CB.10aCuFeS2
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Azurite5.BA.05Cu3(CO3)2(OH)2
Malachite5.BA.10Cu2(CO3)(OH)2

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Chalcocite2.4.7.1Cu2S
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Azurite16a.2.1.1Cu3(CO3)2(OH)2
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2

List of minerals for each chemical element

HHydrogen
H MalachiteCu2(CO3)(OH)2
H AzuriteCu3(CO3)2(OH)2
CCarbon
C MalachiteCu2(CO3)(OH)2
C AzuriteCu3(CO3)2(OH)2
OOxygen
O QuartzSiO2
O MalachiteCu2(CO3)(OH)2
O AzuriteCu3(CO3)2(OH)2
SiSilicon
Si QuartzSiO2
SSulfur
S ChalcopyriteCuFeS2
S ChalcociteCu2S
FeIron
Fe ChalcopyriteCuFeS2
CuCopper
Cu MalachiteCu2(CO3)(OH)2
Cu AzuriteCu3(CO3)2(OH)2
Cu ChalcopyriteCuFeS2
Cu ChalcociteCu2S
AuGold
Au GoldAu

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Neoarchean
2500 - 2800 Ma



ID: 2929952
Mafic to ultramafic (komatiitic) volcanic rocks

Age: Neoarchean (2500 - 2800 Ma)

Stratigraphic Name: Newton Lake Formation

Description: Mafic to ultramafic (komatiitic) volcanic rocks. Includes the Newton Lake Formation and Deer Lake sequence.

Comments: Part of the Supracrustal and hypabyssal intrusive rocks of the Wawa and Wabigoon subprovinces. Pre-D1 metavolcanic, metasedimentary, and hypabyssal intrusive rocks. Original map source: Jirsa, Mark A., Boerboom, Terrence J., Chandler, Val W., Mossler, John H., Runkel, Anthony C., and Setterholm, Dale R., 2011, S-21 Geologic Map of Minnesota-Bedrock Geology; Minnesota Geological Survey, State Map Series S-21. Scale 1:500,000.

Lithology: Major:{komatiite,mafic volcanic}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Neoarchean
2500 - 2800 Ma



ID: 3185909
Archean volcanic rocks

Age: Neoarchean (2500 - 2800 Ma)

Lithology: Felsic volcanic rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Grout, F.F. (1937) Petrographic study of gold prospects of Minnesota: Economic Geology: 32 (1): 56-68.
Sims, P.K. & Day, W.C. (1992) A regional structural model for gold mineralization in the southern part of the Archean Superior Province, United States: USGS Bulletin 1904-M: M1-M15.

USGS MRDS Record:10082816
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