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Aurora Uranium Prospect, Opalite District (McDermitt District), Malheur Co., Oregon, USA

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Key
Lock Map
Latitude & Longitude (WGS84): 42° 1' 50'' North , 117° 53' 57'' West
Latitude & Longitude (decimal): 42.03056,-117.89917
GeoHash:G#: 9rkpj5kmw
Locality type:Prospect
Köppen climate type:BSk : Cold semi-arid (steppe) climate


REF:Deposit:: FERNS, MARK L. ,PERSONAL KNOWNLEDG
Reserve-Resource:: ROPER AND WALLACE, 1980
Commodities (Major) - Uranium 17 mullion tons of 0.05% U
Development Status: Occurrence
Deposit Model: 155: Volcanogenic U
Structure: Nw Trending Faults Paralleling The Caldera Rim
Host Rock: Basalt
Tectonic Structure: North Margin Of The Mcdermitt Caldera

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


14 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Arsenopyrite
Formula: FeAsS
Reference: Nevada Bureau of Mines and Geology NBMG Open-File Report 96-3 By Stephen B. Castor, Christopher D. Henry, Lisa A. Shevenell
'Basalt'
Reference: From USGS MRDS database
Calcite
Formula: CaCO3
Reference: Nevada Bureau of Mines and Geology NBMG Open-File Report 96-3 By Stephen B. Castor, Christopher D. Henry, Lisa A. Shevenell
'Chlorite Group'
Reference: Nevada Bureau of Mines and Geology NBMG Open-File Report 96-3 By Stephen B. Castor, Christopher D. Henry, Lisa A. Shevenell
'Clinoptilolite'
Reference: Nevada Bureau of Mines and Geology NBMG Open-File Report 96-3 By Stephen B. Castor, Christopher D. Henry, Lisa A. Shevenell
Coffinite
Formula: U(SiO4) · nH2O
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; Nevada Bureau of Mines and Geology NBMG Open-File Report 96-3 By Stephen B. Castor, Christopher D. Henry, Lisa A. Shevenell
Cristobalite
Formula: SiO2
Reference: Nevada Bureau of Mines and Geology NBMG Open-File Report 96-3 By Stephen B. Castor, Christopher D. Henry, Lisa A. Shevenell
Fluorite
Formula: CaF2
Reference: Nevada Bureau of Mines and Geology NBMG Open-File Report 96-3 By Stephen B. Castor, Christopher D. Henry, Lisa A. Shevenell
Gypsum
Formula: CaSO4 · 2H2O
Reference: Nevada Bureau of Mines and Geology NBMG Open-File Report 96-3 By Stephen B. Castor, Christopher D. Henry, Lisa A. Shevenell
Jarosite
Formula: KFe3+ 3(SO4)2(OH)6
Reference: Nevada Bureau of Mines and Geology NBMG Open-File Report 96-3 By Stephen B. Castor, Christopher D. Henry, Lisa A. Shevenell
'K Feldspar'
Reference: Nevada Bureau of Mines and Geology NBMG Open-File Report 96-3 By Stephen B. Castor, Christopher D. Henry, Lisa A. Shevenell
Marcasite
Formula: FeS2
Reference: Nevada Bureau of Mines and Geology NBMG Open-File Report 96-3 By Stephen B. Castor, Christopher D. Henry, Lisa A. Shevenell
Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Reference: Nevada Bureau of Mines and Geology NBMG Open-File Report 96-3 By Stephen B. Castor, Christopher D. Henry, Lisa A. Shevenell
Opal
Formula: SiO2 · nH2O
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; Nevada Bureau of Mines and Geology NBMG Open-File Report 96-3 By Stephen B. Castor, Christopher D. Henry, Lisa A. Shevenell
Pyrite
Formula: FeS2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; Nevada Bureau of Mines and Geology NBMG Open-File Report 96-3 By Stephen B. Castor, Christopher D. Henry, Lisa A. Shevenell
Rutile
Formula: TiO2
Reference: Nevada Bureau of Mines and Geology NBMG Open-File Report 96-3 By Stephen B. Castor, Christopher D. Henry, Lisa A. Shevenell
Siderite
Formula: FeCO3
Reference: Nevada Bureau of Mines and Geology NBMG Open-File Report 96-3 By Stephen B. Castor, Christopher D. Henry, Lisa A. Shevenell
Uraninite
Formula: UO2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; Nevada Bureau of Mines and Geology NBMG Open-File Report 96-3 By Stephen B. Castor, Christopher D. Henry, Lisa A. Shevenell

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
'Arsenopyrite'2.EB.20FeAsS
'Marcasite'2.EB.10aFeS2
'Pyrite'2.EB.05aFeS2
Group 3 - Halides
'Fluorite'3.AB.25CaF2
Group 4 - Oxides and Hydroxides
'Cristobalite'4.DA.15SiO2
'Opal'4.DA.10SiO2 · nH2O
'Rutile'4.DB.05TiO2
'Uraninite'4.DL.05UO2
Group 5 - Nitrates and Carbonates
'Calcite'5.AB.05CaCO3
'Siderite'5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Gypsum'7.CD.40CaSO4 · 2H2O
'Jarosite'7.BC.10KFe3+ 3(SO4)2(OH)6
Group 9 - Silicates
'Coffinite'9.AD.30U(SiO4) · nH2O
'Montmorillonite'9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Unclassified Minerals, Rocks, etc.
'Basalt'-
'Chlorite Group'-
'Clinoptilolite'-
'K Feldspar'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Marcasite2.12.2.1FeS2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
AX2
Rutile4.4.1.1TiO2
Group 5 - OXIDES CONTAINING URANIUM OR THORIUM
AXO2·xH2O
Uraninite5.1.1.1UO2
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Siderite14.1.1.3FeCO3
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Jarosite30.2.5.1KFe3+ 3(SO4)2(OH)6
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in >[6] coordination
Coffinite51.5.2.4U(SiO4) · nH2O
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 clays
Montmorillonite71.3.1a.2(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Cristobalite75.1.1.1SiO2
Si Tetrahedral Frameworks - SiO2 with H2O and organics
Opal75.2.1.1SiO2 · nH2O
Unclassified Minerals, Rocks, etc.
'Basalt'-
'Chlorite Group'-
'Clinoptilolite'-
'K Feldspar'-

List of minerals for each chemical element

HHydrogen
H CoffiniteU(SiO4) · nH2O
H GypsumCaSO4 · 2H2O
H JarositeKFe3+ 3(SO4)2(OH)6
H Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
H OpalSiO2 · nH2O
CCarbon
C CalciteCaCO3
C SideriteFeCO3
OOxygen
O CalciteCaCO3
O CoffiniteU(SiO4) · nH2O
O CristobaliteSiO2
O GypsumCaSO4 · 2H2O
O JarositeKFe3+ 3(SO4)2(OH)6
O Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
O OpalSiO2 · nH2O
O RutileTiO2
O SideriteFeCO3
O UraniniteUO2
FFluorine
F FluoriteCaF2
NaSodium
Na Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
MgMagnesium
Mg Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
AlAluminium
Al Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
SiSilicon
Si CoffiniteU(SiO4) · nH2O
Si CristobaliteSiO2
Si Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Si OpalSiO2 · nH2O
SSulfur
S ArsenopyriteFeAsS
S GypsumCaSO4 · 2H2O
S JarositeKFe3+ 3(SO4)2(OH)6
S MarcasiteFeS2
S PyriteFeS2
KPotassium
K JarositeKFe3+ 3(SO4)2(OH)6
CaCalcium
Ca CalciteCaCO3
Ca FluoriteCaF2
Ca GypsumCaSO4 · 2H2O
Ca Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
TiTitanium
Ti RutileTiO2
FeIron
Fe ArsenopyriteFeAsS
Fe JarositeKFe3+ 3(SO4)2(OH)6
Fe MarcasiteFeS2
Fe PyriteFeS2
Fe SideriteFeCO3
AsArsenic
As ArsenopyriteFeAsS
UUranium
U CoffiniteU(SiO4) · nH2O
U UraniniteUO2

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

Neogene
2.588 - 23.03 Ma



ID: 3186305
Cenozoic volcanic rocks

Age: Neogene (2.588 - 23.03 Ma)

Stratigraphic Name: Columbia River Basalt

Comments: Columbia Plateau

Lithology: Flood basalt(s); mafic volcanic rocks; basalt

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]

Pliocene - Miocene
2.588 - 23.03 Ma



ID: 1450246
Neogene sedimentary rocks

Age: Neogene (2.588 - 23.03 Ma)

Description: Tuffaceous sedimentary rocks, tuffs, and interbedded basaltic and andesitic flows; sedimentary/volcanic rocks; tuffaceous sedimentary rocks; mixed lithologies

Lithology: Major:: {tuffaceous siltstone}; Major:: {concretionary claystone}; Major:: {tuffaceous sandstone}; Major:: {ash}; Major:: {ashy diatomite}; Major:: {conglomerate} Minor:: {lithic tuff, lithology: vitric crystals vitric}; Minor:: {siltstone}; Minor:: {sandstone}; Minor:: {gravel}; Minor:: {fanglomerate}; Minor:: {tuff breccia}; Minor:: {lapilli tuff, lithology: pumice}

Reference: R.L. Smith, W.P. Roe (compilers). Oregon Geologic Data Compilation, release 6. State of Oregon Department of Geology and Mineral Industries. [20]

Miocene
5.333 - 23.03 Ma



ID: 2837160
Tuffaceous sedimentary rocks, tuffs, pumicites, and silicic flows

Age: Miocene (5.333 - 23.03 Ma)

Stratigraphic Name: Mascall Formation; Succor Creek Formation; Drip Spring Formation; Trout Creek Formation; Picture Gorge Basalt

Description: Moderately well indurated lacustrine and fluvial (flood-plain) deposits of tuff, pumicite, palagonite tuff, and lesser siltstone, arkosic sandstone, and pebble and cobble conglomerate. Locally contains some lignite beds. Former glass in silicic vitroclastic debris commonly crystallized and altered to secondary silica minerals, alkali feldspar, zeolites, and clay minerals. Contains some welded and nonwelded ash-flow tuffs, and minor rhyolite flows. Widespread and abundant vertebrate fossils and minor plant fossils indicate that most of unit is of middle Miocene (Barstovian) age; parts of unit between Goose Lake and Warner Valley may include rocks of early Miocene age. Locally interlayered with and locally overlies basalt and andesite flows of unit Tmb. Overlies and locally interfingers with Picture Gorge Basalt (Thayer and Brown, 1966) and with Miocene basalt south of Prineville. Includes Mascall Formation of Merriam (1901), Sucker (Succor) Creek Formation of Corcoran and others (1962) and Kittleman and others (1967), Drip Spring Formation of Kittleman and others (1965, 1967), Trout Creek Formation of Smith (1926), and "rocks of Miocene age" of Malde and Powers (1962) in the southern Owyhee Upland province. In southeast Oregon, some of these rocks represent caldera and moat-fill deposits

Comments: Original map source: Miller, R.J., Raines, G.L., and Connors, K.A., 2002, Spatial digital database for the geologic map of Oregon: Geology compiled by G.W. Walker and N.S. MacLeod, USGS Open-File Report 03-67, scale 1:500,000.

Lithology: Major:{rhyolite}, Minor:{siltstone,arkose,conglomerate,lignite}

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]

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

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Nevada Bureau of Mines and Geology NBMG Open-File Report 96-3 By Stephen B. Castor, Christopher D. Henry, Lisa A. Shevenell


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