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:
McDermitt Caldera Center, Humboldt Co., Nevada, USA

Oldest recorded age at locality: 16.65
Youngest recorded age at locality: 15.3

mindat Locality ID: 61855
mindat URL: http://www.mindat.org/loc-61855.html

Tectonic Settings:

Total number of sublocalities beneath "McDermitt Caldera Center, Humboldt Co., Nevada, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 41°53'46"N
Longitude: 118°1'42"W
Decimal Degree (lat, lon): 41.896111111111,-118.02833333333
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 Ca F Fe H K Li Mg Na O Si Ti 

Elements from minerals reported directly at this locality: Al Ca F Fe H K Li Mg Na O Si Ti 

Structural Groups for minerals in this locality: 
AmphiboleAnalcimeClayCristobaliteMordeniteNoneOlivinePyroxeneSapphirine

8 IMA Minerals at location:
Aegirine  (*)Aenigmatite  (*)Analcime  (*)Arfvedsonite  (*)Cristobalite  (*)
Fayalite  (*)Hectorite  (*)Mordenite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Aegirine  (*)PyroxeneNaFe3+Si2O616.6515.301022
Aenigmatite  (*)SapphirineNa4[Fe2+10Ti2]O4[Si12O36]16.6515.30133
Analcime  (*)AnalcimeNa(AlSi2O6)·H2O16.6515.301627
Arfvedsonite  (*)AmphiboleNaNa2(Fe2+4Fe3+)Si8O22(OH)216.6515.30295
Cristobalite  (*)CristobaliteSiO216.6515.30453
Fayalite  (*)OlivineFe2+2(SiO4)16.6515.30371
Hectorite  (*)ClayNa0.3(Mg,Li)3Si4O10(F,OH)2·nH2O16.6516.05019
Mordenite  (*)Mordenite(Na2,Ca,K2)4(Al8Si40)O96·28H2O16.6515.30405


Locality Notes from all Ages at Locality:
Age IDLocality Notes
Scott-DD2014_Starkel-0001mine
Scott-EG83_859-0001mine


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
Scott-DD2014_Starkel-000116.6516.0516.35±0.340Ar-39ArAge of depositionsanidine   Sanidine Li61855McDermitt Caldera Center, Humboldt Co., Nevada, USAMcDermitt MineStarkel (2014) DD2014_Starkelcaldera-forming eruption of the McDermitt Tuff at 16.35 ± 0.03 Ma
Scott-EG83_859-000116.115.315.7±0.4K-ArAge of mineralizationadularia     61855McDermitt Caldera Center, Humboldt Co., Nevada, USAMcDermitt MineNoble et al. (1988)10.2113/gsecongeo.83.4.859EG83_859Table 2, "the most simple and straightforward interpretation of the available data is that the 15.7 _ 0.4 m.y. age dates the time of formation of the entire deposit"

SampleSource LocalityReference URL

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