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:
Orange Hill Prospect, Chisana District, Valdez-Cordova Census Area, Alaska, USA

Oldest recorded age at locality: 105
Youngest recorded age at locality: 105

mindat Locality ID: 199265
mindat URL: http://www.mindat.org/loc-199265.html

Tectonic Settings:

Total number of sublocalities beneath "Orange Hill Prospect, Chisana District, Valdez-Cordova Census Area, Alaska, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 62°12'14"N
Longitude: 142°50'41"W
Decimal Degree (lat, lon): 62.203888888889,-142.84472222222

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 C Ca Cu Fe H K Mo O S Si 

Elements from minerals reported directly at this locality: Al C Ca Cu Fe H K Mo O S Si 

Structural Groups for minerals in this locality: 
CalciteChalcopyriteClayClinozoisiteEpidoteGypsumKaoliniteMicaMolybdeniteNone
Not in a structural groupPyriteQuartzSpinel

12 IMA Minerals at location:
Anhydrite  (*)Bornite  (*)Calcite  (*)Chalcopyrite  (*)Epidote  (*)
Gypsum  (*)Kaolinite  (*)Magnetite  (*)Molybdenite  (*)Muscovite  (*)
Pyrite  (*)Quartz  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Anhydrite  (*)Not in a structural groupCa(SO4)10510501588
Bornite  (*)NoneCu5FeS410510505516
Calcite  (*)CalciteCa(CO3)105105027770
Chalcopyrite  (*)ChalcopyriteCuFeS2105105027198
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)10510508173
Gypsum  (*)GypsumCa(SO4)·2H2O10510506890
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)410510505591
Magnetite  (*)SpinelFe2+Fe3+2O4105105014899
Molybdenite  (*)MolybdeniteMoS210510505800
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2105105017380
Pyrite  (*)PyriteFeS2105105039462
Quartz  (*)QuartzSiO2105105061156



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
PorphCu-00239105105105      Anhydrite, Bornite, Chalcopyrite, Epidote, Kaolinite, Magnetite, Molybdenite, PyriteCu199265Orange Hill Prospect, Chisana District, Valdez-Cordova Census Area, Alaska, USAOrange HillSinger et al. (2008) USGSOFR2008_1155 


SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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