Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org



The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.


Locality Name:
DeVries Lake, Great Bear Lake, Mackenzie District, Northwest Territories, Canada

Oldest recorded age at locality: 1860
Youngest recorded age at locality: 1500

mindat Locality ID: 277943
mindat URL: http://www.mindat.org/loc-277943.html

Tectonic Settings:

Total number of sublocalities beneath "DeVries Lake, Great Bear Lake, Mackenzie District, Northwest Territories, Canada": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
KOL Prospect
Nori/RA Prospect

Latitude: 64°21'0"N
Longitude: 116°47'42"W
Decimal Degree (lat, lon): 64.35,-116.795
AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
This mineral's age has not yet been recorded.

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al Au B C Ca Cu Fe H K Mg Mo Na O S Si U 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
BerylChalcopyriteClayClinozoisiteCopperEpidoteFluoriteMalachiteMicaMolybdenite
NoneNot in a structural groupPyriteQuartzSpinelTourmaline

14 IMA Minerals at location:
Azurite  (*)Bornite  (*)Chalcopyrite  (*)Cordierite  (*)Dravite  (*)
Epidote  (*)Gold  (*)Magnetite  (*)Malachite  (*)Molybdenite  (*)
Muscovite  (*)Pyrite  (*)Quartz  (*)Uraninite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)2186015001310595509
Bornite  (*)NoneCu5FeS4186015001310595516
Chalcopyrite  (*)ChalcopyriteCuFeS218601500231059,3106027198
Cordierite  (*)BerylMg2Al4Si5O18186015001310601008
Dravite  (*)TourmalineNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)18601500131060648
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)186015001310598173
Gold  (*)CopperAu1860150013105930554
Magnetite  (*)SpinelFe2+Fe3+2O418601500231059,3106014899
Malachite  (*)MalachiteCu2(CO3)(OH)21860150013105912537
Molybdenite  (*)MolybdeniteMoS2186015001310605800
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)21860150013105917380
Pyrite  (*)PyriteFeS218601500231059,3106039462
Quartz  (*)QuartzSiO218601500231059,3106061156
Uraninite  (*)FluoriteUO2186015001310602718


2 Ages assigned to this locality:

Excel IDMax Age (Ma)Min Age (Ma)Age as listed in referenceDating MethodAge InterpretPrioritized?Sample SourceSample NumRun NumAge from other LocalityDated MineralMinerals explicitely stated as having this ageAge applies to these ElementsMinDat Locality IDDated Locality (Max Age)Location as listed in referenceReferenceReference DOIReference IDAge Notes
Emily00025918601860  age of Great Bear batholith   Yes  518Great Bear Lake, Mackenzie District, Northwest Territories, CanadaGreat Bear BatholithKissin (1993) GC19_113age of Great Bear batholith
Emily00026015001500  age of oreveins at Great Bear batholith   Yes  518Great Bear Lake, Mackenzie District, Northwest Territories, CanadaGreat Bear BatholithKissin (1993) GC19_113age of oreveins at Great Bear batholith

SampleSource LocalityReference URL

All locality data graciously provided by mindat.org

All age data...

Other copyright data...