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:
Glacier Bay District, Juneau District, Hoonah-Angoon Census Area, Alaska, USA

Oldest recorded age at locality: 65.5
Youngest recorded age at locality: 2.6

mindat Locality ID: 203125
mindat URL: http://www.mindat.org/loc-203125.html

Tectonic Settings:

Total number of sublocalities beneath "Glacier Bay District, Juneau District, Hoonah-Angoon Census Area, Alaska, USA": 42
Total number of bottom-level sublocalities: 41

Number of Child Localities: 29
Child Localities:
Brady Glacier Nickel-copper Deposit Prospect
Exray Prospect
Gable Mountain Occurrence
Glacier Bay National Park
Gustavus Beach Prospect
Margerie Glacier Prospect (Margarie Glacier Prospect; Porcupine Prospect)
Miller Peak Occurrence
Mount Brock; Mount Brack Occurrence
Sandy Cove Prospect
Unnamed Occurrence (ARDF - JU001; On The West Side Of Casement Glacier)
Unnamed Occurrence (ARDF - JU003; West Of Mt. Elder)
Unnamed Occurrence (ARDF - JU005; West Side Of Casement Glacier)
Unnamed Occurrence (ARDF - JU008; East Of Berg Mountain)
Unnamed Occurrence (ARDF - JU012; Southeast Of Upper Berg Creek)
Unnamed Occurrence (ARDF - JU015; Near Terminus Of Casement Glacier)
Unnamed Occurrence (ARDF - JU017; Northwest Of Mt. Young)
Unnamed Occurrence (ARDF - JU020; Near Mt. Young)
Unnamed Occurrence (ARDF - JU024; Northwest Shore Of Outer Adams Inlet)
Unnamed Occurrence (ARDF - JU042; North Of Endicott Lake)
Unnamed Occurrence (ARDF - JU055; North Of White Glacier)
Unnamed Occurrence (ARDF - JU056; Near White Glacier)
Unnamed Occurrence (ARDF - JU107; West Of Sawmill Bay In Excursion Inlet)
Unnamed Occurrence (ARDF - MF084; West-northwest Of Mt. Dagelet)
Unnamed Occurrence (ARDF - SK011; On Western Edge Of McBride Glacier)
Unnamed Occurrence (ARDF - SK015; On Minnesota Ridge)
Unnamed Occurrence (ARDF - SK018; Near Mt. Barnard)
Unnamed Occurrence (ARDF - SK019; On The West Side Of Tarr Inlet)
Unnamed Prospect (ARDF - JU072; North Of Mouth Of York Creek)
Unnamed Prospect (ARDF - JU118; West Of Outer Excursion Inlet)

Latitude: 58°50'4"N
Longitude: 136°5'29"W
Decimal Degree (lat, lon): 58.834444444444,-136.09138888889

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: Ag Al As Au Ba C Ca Cr Cu Fe H K Mg Mo Ni O Pb S Si Sr Te Ti W Zn 

Elements from minerals reported directly at this locality: Al H Mg O Si 

Structural Groups for minerals in this locality: 
AllophaneAragoniteArsenopyriteBaryteCalciteChalcopyriteClayClinozoisiteCopperCorundum
CubaniteEpidoteMalachiteMicaMolybdeniteNickelineNonePalygorskitePentlanditePyrite
QuartzRocksaltScheeliteSphaleriteSpinelWurtzite

32 IMA Minerals at location:
Altaite  (*)Ankerite  (*)Arsenopyrite  (*)Baryte  (*)Bornite  (*)
Calcite  (*)Celestine  (*)Chalcopyrite  (*)Chromite  (*)Chrysocolla  (*)
Cubanite  (*)Epidote  (*)Galena  (*)Gold  (*)Ilmenite  (*)
Mackinawite  (*)Magnetite  (*)Malachite  (*)Molybdenite  (*)Muscovite  (*)
Nickeline  (*)Palygorskite  (*)Pentlandite  (*)Pyrite  (*)Pyrrhotite  (*)
Quartz  (*)Scheelite  (*)Silver  (*)Sphalerite  (*)Strontianite  (*)
Violarite  (*)Witherite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Altaite  (*)RocksaltPbTe1130099489
Ankerite  (*)NoneCa(Fe2+,Mg)(CO3)24130118,130119,130123,1301323092
Arsenopyrite  (*)ArsenopyriteFeAsS65.52.64130117,130119,130135,1301389052
Baryte  (*)BaryteBa(SO4)3130123,130128,13013211547
Bornite  (*)NoneCu5FeS42130099,1301305516
Calcite  (*)CalciteCa(CO3)3130100,130118,13011927770
Celestine  (*)BaryteSr(SO4)11301321252
Chalcopyrite  (*)ChalcopyriteCuFeS265.52.615130099,130100,130117,130118,130119,130120,130121,130125,130128,130129,130132,130135,130136,130137,13013827198
Chromite  (*)SpinelFe2+Cr2O411300993902
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O11301013531
Cubanite  (*)Cubanite WurtziteCuFe2S31130099802
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)65.52.62130117,1301378173
Galena  (*)RocksaltPbS113011924243
Gold  (*)CopperAu65.52.62130117,13013230554
Ilmenite  (*)CorundumFe2+Ti4+O33130099,130129,1301345433
Mackinawite  (*)None(Fe,Ni)1+xS (x = 0-0.07)1130099451
Magnetite  (*)SpinelFe2+Fe3+2O42130099,13012914899
Malachite  (*)MalachiteCu2(CO3)(OH)22130101,13011812537
Molybdenite  (*)MolybdeniteMoS265.52.611301175800
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)265.52.6113011717380
Nickeline  (*)NickelineNiAs1130099633
Palygorskite  (*)Palygorskite Clay(Mg,Al)2Si4O10(OH)·4H2O65.52.60306
Pentlandite  (*)Pentlandite(Ni,Fe)9S811300991512
Pyrite  (*)PyriteFeS265.52.619130099,130117,130118,130119,130120,130122,130123,130124,130125,130126,130128,130129,130131,130132,130135,130136,130137,130138,13013939462
Pyrrhotite  (*)NickelineFe7S865.52.66130117,130129,130133,130135,130137,1301399056
Quartz  (*)QuartzSiO265.52.69130101,130117,130118,130119,130120,130123,130128,130138,13013961156
Scheelite  (*)ScheeliteCa(WO4)65.52.62130117,1301204894
Silver  (*)CopperAg11301325186
Sphalerite  (*)SphaleriteZnS65.52.64130117,130119,130132,13013821482
Strontianite  (*)AragoniteSr(CO3)1130132589
Violarite  (*)SpinelFeNi2S41130099380
Witherite  (*)AragoniteBa(CO3)1130132251



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-0023765.52.6Tertiary      Arsenopyrite, Chalcopyrite, Epidote, Molybdenite, Pyrite, Pyrrhotite, Scheelite, SphaleriteCu198741Margerie Glacier Prospect (Margarie Glacier Prospect; Porcupine Prospect), Glacier Bay District, Juneau District, Hoonah-Angoon Census Area, Alaska, USAMargerie GlacierSinger et al. (2008) USGSOFR2008_1155 


SampleSource LocalityReference URL


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