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Brown Derby No. 1, Brown Derby Mine, Quartz Creek Pegmatite District, Gunnison Co., Colorado, USAi
Regional Level Types
Brown Derby No. 1- not defined -
Brown Derby MineMine
Quartz Creek Pegmatite DistrictMining District
Gunnison Co.County
ColoradoState
USACountry

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Key
Lock Map
Latitude & Longitude (WGS84): 38° 32' 29'' North , 106° 37' 35'' West
Latitude & Longitude (decimal): 38.54149,-106.62656
GeoHash:G#: 9wu5m8kbm
Köppen climate type:Dfc : Subarctic climate
Nearest Settlements:
PlacePopulationDistance
Gunnison6,076 (2018)26.0km
Maysville135 (2011)37.9km
Crested Butte1,579 (2017)48.1km
Mount Crested Butte801 (2012)49.7km


STAATZ AND TRITES, 1955, GEOLOGY OF THE QUARTZ CREEK PEGMATITES, USGS PROF. PAPER 265, P. 5
Commodities (Major) - REE, Niobium (Columbium), Tantalum
Development Status: Producer

Regions containing this locality

North America PlateTectonic Plate
Rocky Mountains, North AmericaMountain Range

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


20 valid minerals.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: Van King; USGS Proffesional Paper 265
Albite var: Cleavelandite
Formula: Na(AlSi3O8)
Reference: Van King; USGS Proffesional Paper 265
'Apatite'
Reference: USGS Proffesional Paper 265
Beryl
Formula: Be3Al2(Si6O18)
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; Edwin B. Eckel, 1933; USGS Proffesional Paper 265
'Biotite'
Reference: Van King; USGS Proffesional Paper 265
Columbite-(Fe)
Formula: Fe2+Nb2O6
Reference: Van King; USGS Proffesional Paper 265
Columbite-(Mn)
Formula: Mn2+Nb2O6
Reference: Minerals of Colorado (1997) Eckel, E. B.
Elbaite
Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Minerals of Colorado (1997) E.B. Eckel
Euxenite-(Y)
Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Reference: Minerals of Colorado (1997) Eckel, E. B.
'Feldspar Group'
Reference: USGS Proffesional Paper 265
'Feldspar Group var: Perthite'
Reference: USGS Proffesional Paper 265
Fluorite
Formula: CaF2
Reference: Bob Cobban; USGS Proffesional Paper 265
Gahnite
Formula: ZnAl2O4
Reference: Bob Cobban; USGS Proffesional Paper 265
'Indicolite'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Bob Cobban
'Lepidolite'
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; Van King; USGS Proffesional Paper 265
'Manganese Oxides'
Reference: Bob Cobban
Microcline
Formula: K(AlSi3O8)
Reference: Van King
'Microlite Group'
Formula: A2-mTa2X6-wZ-n
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; USGS Proffesional Paper 265
'Monazite'
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; USGS Proffesional Paper 265
Monazite-(Ce)
Formula: Ce(PO4)
Reference: Bob Cobban
Monazite-(Sm)
Formula: Sm(PO4)
Reference: Collected by Rudy Bolona; confirmed analysis by George B. Morgan University of Oklahoma, Oct. 2009.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Minerals of Colorado (1997) E.B. Eckel; Van King
Pollucite
Formula: (Cs,Na)2(Al2Si4O12) · 2H2O
Reference: Van King; Bob Cobban
Polylithionite ?
Formula: KLi2Al(Si4O10)(F,OH)2
Reference: Bob Cobban
'Pyrochlore Group'
Formula: A2Nb2(O,OH)6Z
Reference: Bob Cobban
'Pyrochlore Supergroup' ?
Formula: A2-mD2X6-wZ1-n
Description: doubted in Mineralogy of Colorado, 1997, Cobban et al.
Reference: Hanley, J. B, Heinrich, E. W., ans Page, L., 1950, Pegmatite Investigations in Colorado, Wyoming, and Ytah, 1942-1944, US Geological Survey Professional Paper 227. pp 125.; USGS Proffesional Paper 265
'Pyrochlore Supergroup var: Betafite (of Hogarth 1977)' ?
Formula: A2-mD2X6-wZ1+w
Description: doubted in Mineralogy of Colorado, 1997, Cobban et al.
Reference: Hanley, J. B, Heinrich, E. W., ans Page, L., 1950, Pegmatite Investigations in Colorado, Wyoming, and Ytah, 1942-1944, US Geological Survey Professional Paper 227. pp 125.; USGS Proffesional Paper 265
Quartz
Formula: SiO2
Reference: Van King; USGS Proffesional Paper 265
Quartz var: Smoky Quartz
Formula: SiO2
Reference: Bob Cobban
'Rubellite'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Van King
Rynersonite
Formula: CaTa2O6
Reference: Elder,R.A., Falster, A.V. & Simmons,Wm.B. (1997): Rynersonite from the Brown Derby no. 1 pegmatite, Gunnison county, Colorado. Mineral News, 13: 1-2
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Bob Cobban
Spessartine
Formula: Mn2+3Al2(SiO4)3
Reference: Bob Cobban
'Stibiconite'
Formula: Sb3+Sb5+2O6(OH)
Reference: Bob Cobban
Stibiotantalite
Formula: Sb(Ta,Nb)O4
Reference: Van King
'Tantalite'
Formula: (Mn,Fe)(Ta,Nb)2O6
Reference: Minerals of Colorado (1997) Eckel, E. B.; USGS Proffesional Paper 265
Topaz
Formula: Al2(SiO4)(F,OH)2
Reference: Minerals of Colorado (1997) E.B. Eckel; Bob Cobban; USGS Proffesional Paper 265
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Van King
'Uranpyrochlore (of Hogarth 1977)'
Formula: (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
Reference: Minerals of Colorado (1997) E.B. Eckel
'Verdelite'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Bob Cobban
'Zinnwaldite'
Reference: Minerals of Colorado (1997) E.B. Eckel; Bob Cobban

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Columbite-(Fe)4.DB.35Fe2+Nb2O6
Columbite-(Mn)4.DB.35Mn2+Nb2O6
Euxenite-(Y)4.DG.05(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Gahnite4.BB.05ZnAl2O4
'Microlite Group'4.00.A2-mTa2X6-wZ-n
'Pyrochlore Group'4.00.A2Nb2(O,OH)6Z
Quartz4.DA.05SiO2
var: Smoky Quartz4.DA.05SiO2
Rynersonite4.DF.05CaTa2O6
'Stibiconite'4.DH.20Sb3+Sb5+2O6(OH)
Stibiotantalite4.DE.30Sb(Ta,Nb)O4
'Uranpyrochlore (of Hogarth 1977)'4.DH.15(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
Group 8 - Phosphates, Arsenates and Vanadates
Monazite-(Ce)8.AD.50Ce(PO4)
Monazite-(Sm)8.AD.50Sm(PO4)
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
var: Cleavelandite9.FA.35Na(AlSi3O8)
Beryl9.CJ.05Be3Al2(Si6O18)
Elbaite9.CK.05Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Microcline9.FA.30K(AlSi3O8)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Pollucite9.GB.05(Cs,Na)2(Al2Si4O12) · 2H2O
Polylithionite ?9.EC.20KLi2Al(Si4O10)(F,OH)2
Schorl9.CK.05Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Spessartine9.AD.25Mn2+3Al2(SiO4)3
Topaz9.AF.35Al2(SiO4)(F,OH)2
Unclassified Minerals, Rocks, etc.
'Apatite'-
'Biotite'-
'Feldspar Group'-
'var: Perthite'-
'Indicolite'-A(D3)G6(T6O18)(BO3)3X3Z
'Lepidolite'-
'Manganese Oxides'-
'Monazite'-
'Pyrochlore Supergroup' ?-A2-mD2X6-wZ1-n
'var: Betafite (of Hogarth 1977)' ?-A2-mD2X6-wZ1+w
'Rubellite'-A(D3)G6(T6O18)(BO3)3X3Z
'Tantalite'-(Mn,Fe)(Ta,Nb)2O6
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z
'Verdelite'-A(D3)G6(T6O18)(BO3)3X3Z
'Zinnwaldite'-

List of minerals arranged by Dana 8th Edition classification

Group 7 - MULTIPLE OXIDES
AB2X4
Gahnite7.2.1.4ZnAl2O4
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
ABO4
Stibiotantalite8.1.6.2Sb(Ta,Nb)O4
A2B2O6(O,OH,F)
'Microlite Group'8.2.2.1A2-mTa2X6-wZ-n
'Pyrochlore Group'8.2.1.1A2Nb2(O,OH)6Z
'Pyrochlore Supergroup
var: Betafite (of Hogarth 1977)' ?
8.2.3.1A2-mD2X6-wZ1+w
'Uranpyrochlore (of Hogarth 1977)'8.2.1.7(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
AB2O6
Columbite-(Fe)8.3.2.2Fe2+Nb2O6
Columbite-(Mn)8.3.2.4Mn2+Nb2O6
Euxenite-(Y)8.3.8.2(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Rynersonite8.3.7.2CaTa2O6
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 38 - ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
AXO4
Monazite-(Ce)38.4.3.1Ce(PO4)
Group 44 - ANTIMONATES
A2X2O6(O,OH,F)
'Stibiconite'44.1.1.1Sb3+Sb5+2O6(OH)
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Spessartine51.4.3a.3Mn2+3Al2(SiO4)3
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] coordination only
Topaz52.3.1.1Al2(SiO4)(F,OH)2
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Six-Membered Rings with borate groups
Elbaite61.3.1.8Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Schorl61.3.1.10Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Polylithionite ?71.2.2b.8KLi2Al(Si4O10)(F,OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Microcline76.1.1.5K(AlSi3O8)
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Pollucite77.1.1.2(Cs,Na)2(Al2Si4O12) · 2H2O
Unclassified Minerals, Mixtures, etc.
Albite
var: Cleavelandite
-Na(AlSi3O8)
'Apatite'-
'Biotite'-
'Feldspar Group'-
'var: Perthite'-
'Indicolite'-A(D3)G6(T6O18)(BO3)3X3Z
'Lepidolite'-
'Manganese Oxides'-
'Monazite'-
Monazite-(Sm)-Sm(PO4)
'Pyrochlore Supergroup' ?-A2-mD2X6-wZ1-n
Quartz
var: Smoky Quartz
-SiO2
'Rubellite'-A(D3)G6(T6O18)(BO3)3X3Z
'Tantalite'-(Mn,Fe)(Ta,Nb)2O6
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z
'Verdelite'-A(D3)G6(T6O18)(BO3)3X3Z
'Zinnwaldite'-

List of minerals for each chemical element

HHydrogen
H MuscoviteKAl2(AlSi3O10)(OH)2
H TopazAl2(SiO4)(F,OH)2
H ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
H Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
H Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
H Pyrochlore GroupA2Nb2(O,OH)6Z
H SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
H StibiconiteSb3+Sb25+O6(OH)
LiLithium
Li ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Li PolylithioniteKLi2Al(Si4O10)(F,OH)2
BeBeryllium
Be BerylBe3Al2(Si6O18)
BBoron
B ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
B RubelliteA(D3)G6(T6O18)(BO3)3X3Z
B IndicoliteA(D3)G6(T6O18)(BO3)3X3Z
B VerdeliteA(D3)G6(T6O18)(BO3)3X3Z
B SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
B TourmalineA(D3)G6(T6O18)(BO3)3X3Z
OOxygen
O BerylBe3Al2(Si6O18)
O Columbite-(Mn)Mn2+Nb2O6
O Tantalite(Mn,Fe)(Ta,Nb)2O6
O Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
O RynersoniteCaTa2O6
O MuscoviteKAl2(AlSi3O10)(OH)2
O TopazAl2(SiO4)(F,OH)2
O ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
O Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
O Monazite-(Sm)Sm(PO4)
O AlbiteNa(AlSi3O8)
O Albite (var: Cleavelandite)Na(AlSi3O8)
O MicroclineK(AlSi3O8)
O QuartzSiO2
O Columbite-(Fe)Fe2+Nb2O6
O Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
O RubelliteA(D3)G6(T6O18)(BO3)3X3Z
O StibiotantaliteSb(Ta,Nb)O4
O IndicoliteA(D3)G6(T6O18)(BO3)3X3Z
O VerdeliteA(D3)G6(T6O18)(BO3)3X3Z
O Pyrochlore GroupA2Nb2(O,OH)6Z
O SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
O SpessartineMn32+Al2(SiO4)3
O GahniteZnAl2O4
O Quartz (var: Smoky Quartz)SiO2
O StibiconiteSb3+Sb25+O6(OH)
O Monazite-(Ce)Ce(PO4)
O TourmalineA(D3)G6(T6O18)(BO3)3X3Z
O PolylithioniteKLi2Al(Si4O10)(F,OH)2
FFluorine
F TopazAl2(SiO4)(F,OH)2
F Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
F FluoriteCaF2
F PolylithioniteKLi2Al(Si4O10)(F,OH)2
NaSodium
Na ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Na AlbiteNa(AlSi3O8)
Na Albite (var: Cleavelandite)Na(AlSi3O8)
Na Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
Na SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
AlAluminium
Al BerylBe3Al2(Si6O18)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al TopazAl2(SiO4)(F,OH)2
Al ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Al AlbiteNa(AlSi3O8)
Al Albite (var: Cleavelandite)Na(AlSi3O8)
Al MicroclineK(AlSi3O8)
Al Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
Al SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Al SpessartineMn32+Al2(SiO4)3
Al GahniteZnAl2O4
Al PolylithioniteKLi2Al(Si4O10)(F,OH)2
SiSilicon
Si BerylBe3Al2(Si6O18)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si TopazAl2(SiO4)(F,OH)2
Si ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Si AlbiteNa(AlSi3O8)
Si Albite (var: Cleavelandite)Na(AlSi3O8)
Si MicroclineK(AlSi3O8)
Si QuartzSiO2
Si Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
Si SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Si SpessartineMn32+Al2(SiO4)3
Si Quartz (var: Smoky Quartz)SiO2
Si PolylithioniteKLi2Al(Si4O10)(F,OH)2
PPhosphorus
P Monazite-(Sm)Sm(PO4)
P Monazite-(Ce)Ce(PO4)
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
K MicroclineK(AlSi3O8)
K PolylithioniteKLi2Al(Si4O10)(F,OH)2
CaCalcium
Ca Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ca RynersoniteCaTa2O6
Ca Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
Ca FluoriteCaF2
TiTitanium
Ti Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ti Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
MnManganese
Mn Columbite-(Mn)Mn2+Nb2O6
Mn Tantalite(Mn,Fe)(Ta,Nb)2O6
Mn SpessartineMn32+Al2(SiO4)3
FeIron
Fe Tantalite(Mn,Fe)(Ta,Nb)2O6
Fe Columbite-(Fe)Fe2+Nb2O6
Fe SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
ZnZinc
Zn GahniteZnAl2O4
YYttrium
Y Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
NbNiobium
Nb Columbite-(Mn)Mn2+Nb2O6
Nb Tantalite(Mn,Fe)(Ta,Nb)2O6
Nb Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Nb Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
Nb Columbite-(Fe)Fe2+Nb2O6
Nb Pyrochlore GroupA2Nb2(O,OH)6Z
SbAntimony
Sb StibiotantaliteSb(Ta,Nb)O4
Sb StibiconiteSb3+Sb25+O6(OH)
CsCaesium
Cs Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
CeCerium
Ce Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ce Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
Ce Monazite-(Ce)Ce(PO4)
SmSamarium
Sm Monazite-(Sm)Sm(PO4)
TaTantalum
Ta Microlite GroupA2-mTa2X6-wZ-n
Ta Tantalite(Mn,Fe)(Ta,Nb)2O6
Ta Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ta RynersoniteCaTa2O6
Ta Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
Ta StibiotantaliteSb(Ta,Nb)O4
ThThorium
Th Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
UUranium
U Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
U Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)

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

Paleoproterozoic
1600 - 2500 Ma



ID: 2855885
Felsic and hornblendic gneisses, either separate or interlayered

Age: Proterozoic (1600 - 2500 Ma)

Description: Includes metabasalt, metatuff, and interbedded metagraywacke; locally contains interlayered biotite gneiss. Derived principally from volcanic rocks

Comments: Original map source: Green, G.N., 1992, The Digital Geologic Map of Colorado in ARC/INFO Format: U.S. Geological Survey Open-File Report 92-0507, 9 p., scale 1:500,000.

Lithology: Major:{gneiss}, Minor:{metabasalt,metagraywacke}

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]

Paleoproterozoic
1600 - 2500 Ma



ID: 3192520
Paleoproterozoic crystalline metamorphic rocks

Age: Proterozoic (1600 - 2500 Ma)

Lithology: Orthogneiss/paragneiss

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)
Elder, R.A., Falster, A.V. & Simmons, Wm.B. (1997): Rynersonite from the Brown Derby no. 1 pegmatite, Gunnison county, Colorado. Mineral News, 13: 1-2


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