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:
Blue Jay (Blue Spar), Cottonwood Creek Area, Fremont Co., Colorado, USA

Oldest recorded age at locality: 1425.8
Youngest recorded age at locality: 904.7

mindat Locality ID: 112903
mindat URL: http://www.mindat.org/loc-112903.html

Tectonic Settings:

Total number of sublocalities beneath "Blue Jay (Blue Spar), Cottonwood Creek Area, Fremont Co., Colorado, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 38°20'5"N
Longitude: 105°42'34"W
Decimal Degree (lat, lon): 38.334722222222,-105.70944444444
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.

No IMA Minerals occur at this locality according to mindat
18 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
USGS-U-Th-Pb-01650_206_2381116.21116.21116.2206_238 zircon   Zircon  112903Blue Jay (Blue Spar), Cottonwood Creek Area, Fremont Co., Colorado, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01650_207_2061425.81425.81425.8207_206 zircon   Zircon  112903Blue Jay (Blue Spar), Cottonwood Creek Area, Fremont Co., Colorado, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01650_207_2351226.41226.41226.4207_235 zircon   Zircon  112903Blue Jay (Blue Spar), Cottonwood Creek Area, Fremont Co., Colorado, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01651_206_2381039.71039.71039.7206_238 zircon   Zircon  112903Blue Jay (Blue Spar), Cottonwood Creek Area, Fremont Co., Colorado, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01651_207_2061409.41409.41409.4207_206 zircon   Zircon  112903Blue Jay (Blue Spar), Cottonwood Creek Area, Fremont Co., Colorado, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01651_207_2351166.11166.11166.1207_235 zircon   Zircon  112903Blue Jay (Blue Spar), Cottonwood Creek Area, Fremont Co., Colorado, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01652_206_2381032.51032.51032.5206_238 zircon   Zircon  112903Blue Jay (Blue Spar), Cottonwood Creek Area, Fremont Co., Colorado, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01652_207_2061407.81407.81407.8207_206 zircon   Zircon  112903Blue Jay (Blue Spar), Cottonwood Creek Area, Fremont Co., Colorado, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01652_207_2351160.51160.51160.5207_235 zircon   Zircon  112903Blue Jay (Blue Spar), Cottonwood Creek Area, Fremont Co., Colorado, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01653_206_2381031.51031.51031.5206_238 zircon   Zircon  112903Blue Jay (Blue Spar), Cottonwood Creek Area, Fremont Co., Colorado, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01653_207_2061407.81407.81407.8207_206 zircon   Zircon  112903Blue Jay (Blue Spar), Cottonwood Creek Area, Fremont Co., Colorado, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01653_207_2351159.81159.81159.8207_235 zircon   Zircon  112903Blue Jay (Blue Spar), Cottonwood Creek Area, Fremont Co., Colorado, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01654_206_238970.5970.5970.5206_238 zircon   Zircon  112903Blue Jay (Blue Spar), Cottonwood Creek Area, Fremont Co., Colorado, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01654_207_2061394.11394.11394.1207_206 zircon   Zircon  112903Blue Jay (Blue Spar), Cottonwood Creek Area, Fremont Co., Colorado, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01654_207_2351109.81109.81109.8207_235 zircon   Zircon  112903Blue Jay (Blue Spar), Cottonwood Creek Area, Fremont Co., Colorado, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01655_206_238904.7904.7904.7206_238 zircon   Zircon  112903Blue Jay (Blue Spar), Cottonwood Creek Area, Fremont Co., Colorado, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01655_207_2061389.51389.51389.5207_206 zircon   Zircon  112903Blue Jay (Blue Spar), Cottonwood Creek Area, Fremont Co., Colorado, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01655_207_235105810581058207_235 zircon   Zircon  112903Blue Jay (Blue Spar), Cottonwood Creek Area, Fremont Co., Colorado, USA USGS-U-Th-Pb USGS-U-Th-Pb 

SampleSource LocalityReference URL

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