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

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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:
Johnsondale, Tulare Co., California, USA

Oldest recorded age at locality: 195
Youngest recorded age at locality: 159

mindat Locality ID: 252797
mindat URL: http://www.mindat.org/loc-252797.html

Tectonic Settings:

Total number of sublocalities beneath "Johnsondale, Tulare Co., California, USA": 5
Total number of bottom-level sublocalities: 5

Number of Child Localities: 5
Child Localities:
Bright Mars 1 And 2 Claims
C C Lode No. 1 Mine
Carver Occurrence
Jay Bird No. 1 Claim (Jay Bird Claim)
Kern River Occurrence

Latitude: 35°58'12"N
Longitude: 118°29'11"W
Decimal Degree (lat, lon): 35.97,-118.48638888889
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: Ca Cu H O P U W 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
NoneScheelite

2 IMA Minerals at location:
Scheelite  (*)Torbernite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Scheelite  (*)ScheeliteCa(WO4)11824184894
Torbernite  (*)NoneCu(UO2)2(PO4)2·12H2O11824191059


Locality Notes from all Ages at Locality:
Age IDLocality Notes
Michelle_455Porphyritic granodiorite 1 km E of Kern River, opposite Big Arroyo; sheared and cut by mafic dikes See Table A1. Pluton described as "unnamed."
Michelle_456Porphyritic granodiorite 1.6 km E of Kern River opposite Rattlesnake Creek; cut by many sheared mafic dikes See Table A1. Pluton described as "unnamed."


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
Michelle_455195160>160U-PbPreferred intrusive agezircon60  Zircon  97363Kern River Occurrence, Johnsondale, Tulare Co., California, USANear Kern RiverChen and Moore (1982)10.1029/JB087iB06p04761AJS299_93See p. 4768, Table 2. Age group J (Jurassic 140-195 ma).
Michelle_456195159>159U-PbPreferred intrusive agezircon61  Zircon  97363Kern River Occurrence, Johnsondale, Tulare Co., California, USANear Kern RiverChen and Moore (1982)10.1029/JB087iB06p04761AJS299_93See p. 4768, Table 2. Age group J (Jurassic 140-195 ma).

SampleSource LocalityReference URL

All locality data graciously provided by mindat.org

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