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:
Reno Junction, Campbell Co., Wyoming, USA

Oldest recorded age at locality: 0.3
Youngest recorded age at locality: 0.3

mindat Locality ID: 286578
mindat URL: http://www.mindat.org/loc-286578.html

Tectonic Settings:

Total number of sublocalities beneath "Reno Junction, Campbell Co., Wyoming, USA": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Durham Ranch Paralava

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

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 Ba C Ca Ce Fe K Mg Na O S Si Ti 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
BaryteBerylCalciteCorundumCristobaliteFeldsparMeliliteNoneNot in a structural groupPyroxene
SapphirineSpinelTridymiteWollastonite

20 IMA Minerals at location:
Alumoåkermanite  (*)Anorthite  (*)Baryte  (*)Calcite  (*)Clinoferrosilite  (*)
Cristobalite  (*)Dorrite  (*)Esseneite  (*)Ferroindialite  (*)Gehlenite  (*)
Hematite  (*)Indialite  (*)Magnetite  (*)Mullite  (*)Nepheline  (*)
Sahamalite-(Ce)  (*)Sillimanite  (*)Tridymite  (*)Ulvöspinel  (*)Wollastonite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Alumoåkermanite  (*)Melilite(Ca,Na)2(Al,Mg,Fe2+)(Si2O7)0.30.312904247
Anorthite  (*)FeldsparCa(Al2Si2O8)0.30.312904241036
Baryte  (*)BaryteBa(SO4)0.30.3129042411547
Calcite  (*)CalciteCa(CO3)0.30.3129042427770
Clinoferrosilite  (*)PyroxeneFe2+2Si2O60.30.3129042418
Cristobalite  (*)CristobaliteSiO20.30.31290424453
Dorrite  (*)SapphirineCa4[Mg3Fe3+9]O4[Si3Al8Fe3+O36]0.30.3129042410
Esseneite  (*)PyroxeneCaFe3+AlSiO60.30.3129042417
Ferroindialite  (*)Beryl(Fe2+,Mg)2Al4Si5O180.30.312904244
Gehlenite  (*)MeliliteCa2Al(SiAl)O70.30.31290424114
Hematite  (*)CorundumFe2O30.30.3129042414640
Indialite  (*)BerylMg2Al3(AlSi5)O180.30.3129042424
Magnetite  (*)SpinelFe2+Fe3+2O40.30.3129042414899
Mullite  (*)NoneAl4+2xSi2-2xO10-x (x ≈ 0.4)0.30.3129042478
Nepheline  (*)TridymiteNa3K(Al4Si4O16)0.30.31290424884
Sahamalite-(Ce)  (*)NoneCe2Mg(CO3)40.30.312904242
Sillimanite  (*)Not in a structural groupAl2SiO50.30.312904241516
Tridymite  (*)TridymiteSiO20.30.31290424458
Ulvöspinel  (*)SpinelFe2+2TiO40.30.31290424120
Wollastonite  (*)WollastoniteCaSiO30.30.312904241247



Locality Notes from all Ages at Locality:
Age IDLocality Notes
Michelle_0266_faParalava/clinker from the Felix Coal Zone of the Powder River Basin near Durham Ranch, WY. Minerals in clinker form as alteration from burning coal.


1 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
Michelle_0266_fa0.30.3<0.3Fission TrackAge of pyrometamorphism near Durham Ranchzircon79F-A  Zircon  4233Durham Ranch Paralava, Reno Junction, Campbell Co., Wyoming, USADurham RanchHeffern et al. (2007) REG18_155See Table 1. Clinker and paralava is found across the Powder River Basin due to numerous ignitions and migration. Ages across the Powder River Basin range from 0.08 to 2.9 ma, with paleomagnetic evidence up to around 4 ma.


SampleSource LocalityReference URL
FKM-152Durham Ranch Paralava, Reno Junction, Campbell Co., Wyoming, USAhttps://www.rockptx.com/fkm-151-to-fkm-175/#FKM-152


All locality data graciously provided by mindat.org

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