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:
Koyukuk District, Yukon-Koyukuk Census Area, Alaska, USA

Oldest recorded age at locality: 390
Youngest recorded age at locality: 170

mindat Locality ID: 203164
mindat URL: http://www.mindat.org/loc-203164.html

Tectonic Settings:

Total number of sublocalities beneath "Koyukuk District, Yukon-Koyukuk Census Area, Alaska, USA": 255
Total number of bottom-level sublocalities: 255

Number of Child Localities: 255
Child Localities:
Abo Prospects
Acme Creek Mine
Agnes Creek Occurrence
Ann Prospect
Archibald Creek; Archibald Gulch Mine
Bettles Bar; Bettles Riffle Mine
Bettles River Canyon Mine
Big Four Creek Occurrence
Big Jim Creek Occurrence (tributary To Dietrich River)
Big Jim Creek; Suklak Creek Mine
Birch Creek Mine
Bonanza Prospects
Bore Creek; Boer Gulch; Boer Creek; Boar Creek Prospect
Bourbon Creek Mine
Buckeye Gulch; Buckeye Creek Mine
Butte Creek Prospect (Shamrock Creek)
Buzz; Buzzard Prospect
Canyon Creek Occurrence
Chandalar Copper; Verna Creek Occurrence
Chapman Creek Occurrence
Cindy Occurrence
Clara Creek; Clara Gulch Mine
Colorado Creek Mine
Confederate Gulch Prospects
Conglomerate Creek Occurrence
Cow Creek Occurrence
Crevice Creek Mine
Davis Creek Mine
Deimos Prospect
Discovery Creek Prospect
Dome Creek Occurrence
Eagle Cliff; Eagle Bluff Mine
East Creek Occurrence
Eightmile Creek Prospect
Emery Creek; Emory Creek Mine
Emma Creek Mine
Emma Dome Occurrence
Eva Prospect
Evelyn Lee Prospect
Fall Creek Prospects
Fay Creek; Fay Gulch; Faye Creek Mine
Ferguson Prospect
Fortress Occurrence
Friday The 13th Pup Occurrence
Frisbe Creek Mine
Frog Prospect
Fryingpan Bar Prospect
Garnet Creek Mine
Ginger Prospect
Gold Bench Mine
Gold Bottom Gulch; Gold Bottom Creek Mine
Gold Creek Mine
Granite Creek Occurrence
Grubstake Bar Mine
Gus Creek Occurrence
Hammond River; Hammond Creek Mine
Hanshaw Bar Mine
Helpmejack Creek Occurrence
Helpmejack Creek Prospect
HET Occurrence
Howard Creek Occurrence
Hurricane-Diane Prospect
Ironside Bench; Ironside Bar Mine
Jap Creek Prospects
Jay Creek; Eagle Gulch Mine
Jim Prospect Confluence; Jim River; Jim River Confluence Occurrence
Jim Pup; Jim Pup Creek; Jim Gulch; Jim Creek Mine
John River Occurrence
Jones & Boyle Prospect
Jones Creek Occurrence (placer); Bog
Kay Creek Occurrence
Kelly Gulch; Kelly's Gulch; Kelly's Mistake Mine
King Creek Occurrence
Lake Creek Mine (ARDF - CH026)
Lake Creek Mine (ARDF - WI061)
Last Chance Creek; Crab Creek Occurrence
Limestone Creek Occurrence
Linda Creek Mine
Little Gold Creek Occurrence
Lofty Gulch; Lofty Creek Mine
Lost Pipe; Alatna River Prospect
Lucky Creek Prospects
Luna Prospect
Lynx Creek Occurrence
Magnet Creek Mine
Mailbox Creek Mine
Marion Creek; Marian Creek Prospect
Mary's Creek Prospects
Mascot Creek Mine
Mathews River Occurrence
McKinley Creek Prospect
Midas Creek Occurrence
Mike Occurrence
Minnie Creek Prospect
Minnie Creek Prospects
Moose Creek; Moose Gulch Occurrence
Moose Trail Occurrence
Mule Creek Mine
Myrtle Creek Mine (ARDF - CH008)
Myrtle Creek Mine (ARDF - WI150)
Neck Creek; Coon Gulch Occurrence
Nolan Creek Mine (includes Mary's Bench And Swede Channel)
Nugget Creek Prospect
Nutirwik Creek Occurrence
Oregon Creek Prospects
Palisades Occurrence
Pasco Creek Occurrence
Phoebe Creek; Feebee Creek Occurrence
Pilgrim Occurrence
Pope; Eldorado Creek Occurrence
Porcupine Creek Mine
Prospect Creek Mine
Quartz Creek Mine
Red Occurrence
Robert Creek; Sheep Creek Occurrence
Roches Moutonnees Occurrence
Rock Creek Mine
Rocky Point Occurrence
Rockybottom Creek Prospects
Roosevelt Creek; RO; Skroo Prospect
Rosie Creek; Rose Creek; Lake Creek Prospects
Rye Creek Mine
Sawlog Creek Mine
Sawyer Creek; Sawyer Gulch Prospects
Sheep Creek Occurrence
Sheep Creek; Sheep Gulch Mine
Silver King Prospect
Sirr Creek; North Fork Seward Creek Mine
Siwash Creek Occurrence
Sixtymile Creek; Fool Creek; Sixtymile Prospects
Slate Creek Mine
Slate Creek Mine (placer)
Slate Creek Occurrence
Slisco Bench Mine
Smally Creek; Smalley Creek Mine
Smith Creek; Smith Gulch Mine
Snowden Creek Occurrence
Spring Creek Mine
Spruce Creek; Big Spruce Creek Occurrence
Suckik Creek; Sickik Creek Mine
Sukakpak Mountain Prospect
Surprise Creek; Summit Creek Mine
Swift Creek; Swift Gulch Mine
Tana Prospect
Thompson Pup; Thompson Gulch Mine
Timber Creek Occurrences
Tramway Bar Mine
Trembley Creek; Kuyuktuvuk Creek Occurrence
Twelvemile Creek Mine (includes Forks Of Twelvemile Creek; Potato Creek)
Twocent Creek Occurrence
Union Gulch; Union Creek Mine
Unnamed Occurrence (ARDF - BT013; Near Kanuti Hot Springs)
Unnamed Occurrence (ARDF - BT016; Tributary To The Kanuti River)
Unnamed Occurrence (ARDF - BT017; West Of Sithylemenkat Lake)
Unnamed Occurrence (ARDF - CH004; Between South Fork Koyukuk River And Mosquito Fork)
Unnamed Occurrence (ARDF - CH005; South Of Winers Lake)
Unnamed Occurrence (ARDF - CH082; South Of The Hammond River)
Unnamed Occurrence (ARDF - HU003; In The Helpmejack Hills)
Unnamed Occurrence (ARDF - SP002; Near Kutuk River)
Unnamed Occurrence (ARDF - SP013; North Of Akabluak Pass)
Unnamed Occurrence (ARDF - SP014; West Of Awlinyak Creek)
Unnamed Occurrence (ARDF - SP015; North Of Arrigetch Peaks)
Unnamed Occurrence (ARDF - SP017; West Of Nahtuk Mountain)
Unnamed Occurrence (ARDF - SP018; West Of Upper Millichetah Creek)
Unnamed Occurrence (ARDF - SP026; Near Headwaters Of Takahula River)
Unnamed Occurrence (ARDF - WI001; Near Walkaround Creek)
Unnamed Occurrence (ARDF - WI002; On Lower Walkaround Creek)
Unnamed Occurrence (ARDF - WI004; Southwest Of Sillyasheen Mountain)
Unnamed Occurrence (ARDF - WI005; East Of VABM Allen)
Unnamed Occurrence (ARDF - WI006; South Of VABM Allen)
Unnamed Occurrence (ARDF - WI007; Near VABM Pink)
Unnamed Occurrence (ARDF - WI008; South Of Eagle Creek)
Unnamed Occurrence (ARDF - WI011; Between Sirr Creek And Wild Lake)
Unnamed Occurrence (ARDF - WI012; South Of Pet Lake)
Unnamed Occurrence (ARDF - WI013; South Of Pet Lake)
Unnamed Occurrence (ARDF - WI014; Northeast Of Head Of Sheep Creek)
Unnamed Occurrence (ARDF - WI015; Southeast Of Upper Sheep Creek)
Unnamed Occurrence (ARDF - WI020; South Of Upper Seward Creek)
Unnamed Occurrence (ARDF - WI021; East Of The North End Of Wild Lake)
Unnamed Occurrence (ARDF - WI023; East Of Upper Wild Lake)
Unnamed Occurrence (ARDF - WI024; West Of Upper Flat Creek)
Unnamed Occurrence (ARDF - WI026; East Of Head Of Bonanza Creek)
Unnamed Occurrence (ARDF - WI033; Near The Head Of Colorado Creek)
Unnamed Occurrence (ARDF - WI036; Northwest Of Colorado Creek)
Unnamed Occurrence (ARDF - WI037; Northwest Of Colorado Creek)
Unnamed Occurrence (ARDF - WI038; Northwest Of Colorado Creek)
Unnamed Occurrence (ARDF - WI039; West Of Mettenpherg Creek)
Unnamed Occurrence (ARDF - WI040; Northwest Of Junction Of Pass And Mettenpherg Creeks)
Unnamed Occurrence (ARDF - WI041; South Of Mt. Hecht)
Unnamed Occurrence (ARDF - WI042; Northeast Of Ernie Lake)
Unnamed Occurrence (ARDF - WI043; East Of Ernie Lake)
Unnamed Occurrence (ARDF - WI045; South Of Ernie Lake)
Unnamed Occurrence (ARDF - WI046; Near Mettenpherg Creek)
Unnamed Occurrence (ARDF - WI051; Northeast Of Ernie Lake)
Unnamed Occurrence (ARDF - WI052; East Of Upper Midas Creek)
Unnamed Occurrence (ARDF - WI053; South Of Organ And Sixtymile Creeks)
Unnamed Occurrence (ARDF - WI054; West Of Upper Malamute Fork John River)
Unnamed Occurrence (ARDF - WI058; Headwaters Of Malamute Fork John River)
Unnamed Occurrence (ARDF - WI059; On McKinley Creek)
Unnamed Occurrence (ARDF - WI060; East Of Wild Lake; Opposite Seward Creek)
Unnamed Occurrence (ARDF - WI062; Ridge Between Madison And Crevice Creeks)
Unnamed Occurrence (ARDF - WI063; Upper Crevice Creek)
Unnamed Occurrence (ARDF - WI065; Near Allen River)
Unnamed Occurrence (ARDF - WI066; Lower Crevice Creek)
Unnamed Occurrence (ARDF - WI069; East Side Of Lower Wild Lake)
Unnamed Occurrence (ARDF - WI070; Between Crevice And McCamant Creeks)
Unnamed Occurrence (ARDF - WI071; In Headwater Fork Of Crevice Creek)
Unnamed Occurrence (ARDF - WI072; West Of Twoday Mountain)
Unnamed Occurrence (ARDF - WI073; West Of Lower Wild Lake)
Unnamed Occurrence (ARDF - WI075; East Of Gunsight Mountain)
Unnamed Occurrence (ARDF - WI077; Near Junction Of Fall And Michigan Creeks)
Unnamed Occurrence (ARDF - WI079; Northwest Of Head Of Jay Creek)
Unnamed Occurrence (ARDF - WI080; South Of Lower Michigan Creek)
Unnamed Occurrence (ARDF - WI081; Ridge East Of Scofield Creek)
Unnamed Occurrence (ARDF - WI085; South Of Mathews Dome)
Unnamed Occurrence (ARDF - WI086; Near Mathews Dome)
Unnamed Occurrence (ARDF - WI087; North Of Mathews Dome)
Unnamed Occurrence (ARDF - WI127; Near Summit Of Smith Creek Dome)
Unnamed Occurrence (ARDF - WI128; Near The Head Of Thompson Pup)
Unnamed Occurrence (ARDF - WI129; On Lower Wiseman Creek)
Unnamed Occurrence (ARDF - WI132; Near Southwest End Of Midnight Dome)
Unnamed Occurrence (ARDF - WI133; Above Gold Bottom Gulch)
Unnamed Occurrence (ARDF - WI137; Lode Near Jones Creek)
Unnamed Occurrence (ARDF - WI138; West Of Deadman Mountain)
Unnamed Occurrence (ARDF - WI139; West Of Upper Jones Creek)
Unnamed Occurrence (ARDF - WI140; Head Of Jones Creek Tributary)
Unnamed Occurrence (ARDF - WI141; Northeast Of Heart Mountain)
Unnamed Occurrence (ARDF - WI142; Head Of Bedrock Creek)
Unnamed Occurrence (ARDF - WI143; Northwest Of Gilroy Mountain)
Unnamed Occurrences (ARDF - BT011; Near Caribou Mountain)
Unnamed Occurrences (ARDF - BT012; On Upper Kanuti River)
Unnamed Occurrences (ARDF - BT014; Near Lower Kanuti River)
Unnamed Occurrences (ARDF - BT018; Southeast Of Sithylemenkat Lake)
Unnamed Occurrences (ARDF - SP016; South Of Arrigetch Creek)
Unnamed Occurrences (ARDF - SP025; Northwest Of Takahula River)
Unnamed Occurrences (ARDF - SP027; Near Head Of Kobuk River)
Unnamed Occurrences (ARDF - TN003; West Of Kanuti Kilolitna River)
Unnamed Occurrences (ARDF - TN004; North Of Kanuti Kilolitna River)
Unnamed Occurrences (ARDF - TN006; North Of Kanuti Kilolitna River)
Unnamed Prospect (ARDF - WI110; On Smith Creek Dome)
Unnamed Prospect (ARDF - WI130; In Smith Creek)
Venus Prospect
Vermont Creek; Right Fork Mine
Vermont Dome Occurrence
Vicki; Vicky Occurrence
Victor Prospect
Wakeup Creek Mine
Wannemaker And Wortman; Workman's Bench Prospect
Washington Creek Mine
Wiehl Mountain Occurrence
Willow Creek Occurrence
Willow Creek Occurrence (placer)
Wilson Creek Occurrence
Wiseman Creek Prospects
Zinc Occurrence

Latitude: 67°20'57"N
Longitude: 151°'45"W
Decimal Degree (lat, lon): 67.349166666667,-151.0125

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 Bi C Ca Cr Cu F Fe H Hg K Mg Mn Mo O Pb Pt S Sb Si Sn Th Ti U W Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AllophaneAmphiboleArsenicArsenopyriteBaryteCalciteChalcopyriteClayClinozoisiteCopper
CorundumCovelliteDiasporeDigeniteEpidoteFluoriteGypsumMalachiteMarcasiteMica
MolybdeniteNickelineNoneNot in a structural groupPyritePyrochlorePyroxeneQuartzRhodoniteRocksalt
RutileScheeliteSphaleriteSpinelStibniteTetrahedriteTitanite

57 IMA Minerals at location:
Actinolite  (*)Ankerite  (*)Arsenopyrite  (*)Azurite  (*)Baryte  (*)
Bismuth  (*)Bornite  (*)Calcite  (*)Cassiterite  (*)Cervantite  (*)
Chalcocite  (*)Chalcopyrite  (*)Chromite  (*)Chrysocolla  (*)Cinnabar  (*)
Copper  (*)Covellite  (*)Cuprite  (*)Digenite  (*)Diopside  (*)
Dolomite  (*)Epidote  (*)Fluorite  (*)Galena  (*)Goethite  (*)
Gold  (*)Graphite  (*)Gypsum  (*)Hematite  (*)Hydrozincite  (*)
Ilmenite  (*)Kermesite  (*)Magnetite  (*)Malachite  (*)Manganite  (*)
Marcasite  (*)Metazeunerite  (*)Molybdenite  (*)Muscovite  (*)Platinum  (*)
Pyrite  (*)Pyrolusite  (*)Pyrrhotite  (*)Quartz  (*)Rhodochrosite  (*)
Rhodonite  (*)Rutile  (*)Scheelite  (*)Siderite  (*)Silver  (*)
Sphalerite  (*)Stibiconite  (*)Stibnite  (*)Tetrahedrite-(Zn)  (*)Thorianite  (*)
Titanite  (*)Tremolite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Actinolite  (*)Amphibole   Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)211355943419
Ankerite  (*)NoneCa(Fe2+,Mg)(CO3)25135528,135529,135612,135658,1357263092
Arsenopyrite  (*)ArsenopyriteFeAsS16135502,135529,135568,135575,135591,135630,135645,135666,135683,135684,135696,135704,135714,135718,135726,1357339052
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)214135489,135494,135610,135614,135640,135641,135642,135654,135656,135661,135670,135671,135682,1357125509
Baryte  (*)BaryteBa(SO4)113548911547
Bismuth  (*)ArsenicBi11355601966
Bornite  (*)NoneCu5FeS413135524,135568,135601,135610,135654,135655,135659,135661,135662,135664,135670,135682,1357015516
Calcite  (*)CalciteCa(CO3)8135528,135529,135622,135658,135664,135671,135701,13573327770
Cassiterite  (*)RutileSnO28135535,135669,135671,135673,135674,135676,135696,1357185171
Cervantite  (*)NoneSb3+Sb5+O41135725352
Chalcocite  (*)NoneCu2S4135531,135654,135656,1357315707
Chalcopyrite  (*)ChalcopyriteCuFeS239039048135489,135497,135506,135514,135523,135524,135531,135534,135535,135546,135547,135550,135568,135575,135578,135594,135605,135607,135610,135612,135618,135622,135629,135645,135646,135654,135655,135658,135659,135660,135661,135664,135678,135681,135683,135684,135687,135688,135696,135697,135704,135705,135711,135712,135714,135727,135730,13573127198
Chromite  (*)SpinelFe2+Cr2O41701708135516,135639,135715,135716,135717,135722,135723,1357243902
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O11357053531
Cinnabar  (*)NoneHgS3135519,135535,1357332600
Copper  (*)CopperCu2135495,1355603846
Covellite  (*)CovelliteCuS2135654,1356554165
Cuprite  (*)Not in a structural groupCu2O2135610,1356602970
Digenite  (*)DigeniteCu1.8S11357311027
Diopside  (*)PyroxeneCaMgSi2O611356714135
Dolomite  (*)NoneCaMg(CO3)23135529,135726,1357339895
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)3903908135506,135514,135578,135594,135670,135671,135727,1357308173
Fluorite  (*)FluoriteCaF25135646,135650,135669,135673,1356769617
Galena  (*)RocksaltPbS35135486,135489,135494,135502,135506,135531,135535,135541,135545,135546,135575,135578,135605,135607,135612,135629,135645,135651,135652,135658,135659,135661,135662,135667,135678,135682,135683,135684,135689,135691,135713,135718,135730,135733,13574024243
Goethite  (*)DiasporeFeO(OH)11357297437
Gold  (*)CopperAu131135487,135488,135490,135491,135492,135493,135495,135496,135498,135499,135500,135501,135503,135505,135507,135508,135509,135510,135512,135513,135515,135516,135517,135518,135519,135520,135521,135524,135525,135526,135527,135528,135529,135530,135532,135533,135535,135536,135537,135538,135539,135540,135541,135542,135543,135548,135549,135550,135551,135552,135554,135555,135556,135557,135558,135559,135560,135561,135563,135564,135565,135566,135567,135569,135570,135571,135572,135573,135574,135575,135576,135577,135579,135580,135581,135583,135584,135585,135586,135587,135588,135589,135590,135591,135592,135593,135595,135596,135597,135598,135600,135602,135604,135606,135607,135608,135609,135611,135613,135615,135616,135617,135619,135620,135621,135623,135624,135625,135626,135627,135628,135630,135631,135632,135633,135634,135635,135636,135638,135703,135704,135725,135726,135728,135732,135733,135734,135736,135737,135738,13573930554
Graphite  (*)NoneC11356222812
Gypsum  (*)GypsumCa(SO4)·2H2O2135622,1357056890
Hematite  (*)CorundumFe2O37135528,135535,135560,135659,135707,135718,13573514640
Hydrozincite  (*)NoneZn5(CO3)2(OH)611355311066
Ilmenite  (*)CorundumFe2+Ti4+O32135607,1357185433
Kermesite  (*)NoneSb2OS21135725230
Magnetite  (*)SpinelFe2+Fe3+2O439039021135510,135512,135514,135518,135523,135534,135535,135551,135555,135560,135568,135576,135639,135675,135678,135697,135718,135719,135727,135731,13573414899
Malachite  (*)MalachiteCu2(CO3)(OH)240135489,135494,135502,135511,135522,135603,135610,135614,135640,135641,135642,135644,135646,135653,135654,135655,135656,135657,135658,135659,135661,135662,135663,135664,135665,135670,135671,135678,135682,135685,135687,135689,135690,135691,135694,135695,135701,135702,135706,13572912537
Manganite  (*)RutileMn3+O(OH)1135643770
Marcasite  (*)MarcasiteFeS211356965674
Metazeunerite  (*)NoneCu(UO2)2(AsO4)2·8H2O1135637182
Molybdenite  (*)MolybdeniteMoS23903906135497,135626,135696,135718,135727,1357315800
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)22135672,13571817380
Platinum  (*)CopperPt1135560485
Pyrite  (*)PyriteFeS239039050135486,135489,135502,135506,135510,135514,135523,135524,135528,135529,135531,135534,135535,135541,135545,135550,135560,135568,135576,135578,135591,135594,135605,135607,135612,135622,135629,135658,135666,135675,135677,135678,135679,135683,135684,135696,135698,135700,135703,135704,135706,135707,135713,135718,135727,135728,135729,135730,135734,13573539462
Pyrolusite  (*)RutileMnO211356433106
Pyrrhotite  (*)NickelineFe7S89135489,135497,135529,135546,135568,135645,135683,135696,1357049056
Quartz  (*)QuartzSiO249135489,135497,135522,135526,135527,135528,135529,135546,135550,135554,135560,135575,135591,135601,135603,135610,135612,135622,135626,135651,135652,135654,135655,135658,135659,135660,135662,135664,135666,135667,135682,135685,135689,135694,135696,135698,135701,135702,135703,135704,135705,135706,135707,135718,135725,135726,135729,135731,13573361156
Rhodochrosite  (*)CalciteMn(CO3)11356431711
Rhodonite  (*)RhodoniteCaMn3Mn(Si5O15)1135618969
Rutile  (*)RutileTiO24135535,135672,135688,1356965614
Scheelite  (*)ScheeliteCa(WO4)4135497,135535,135560,1356074894
Siderite  (*)CalciteFe(CO3)4135612,135667,135672,1357046417
Silver  (*)CopperAg11355125186
Sphalerite  (*)SphaleriteZnS34135486,135489,135502,135506,135531,135545,135568,135575,135578,135594,135605,135629,135645,135648,135650,135659,135660,135667,135670,135675,135678,135679,135683,135686,135688,135693,135696,135698,135700,135714,135719,135730,135736,13574021482
Stibiconite  (*)PyrochloreSb3+Sb5+2O6(OH)1135725446
Stibnite  (*)StibniteSb2S318135490,135512,135515,135527,135529,135537,135549,135553,135554,135560,135621,135626,135704,135725,135726,135728,135733,1357353418
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S136135626,135658,135663,135685,135697,1357015317
Thorianite  (*)FluoriteThO21135535236
Titanite  (*)TitaniteCaTi(SiO4)O11355354899
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)211356712562



11 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-01528_206_238277277277206_238 zircon   Zircon  201954Unnamed Occurrence (ARDF - WI139; West Of Upper Jones Creek), Koyukuk District, Yukon-Koyukuk Census Area, Alaska, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01528_207_206353353353207_206 zircon   Zircon  201954Unnamed Occurrence (ARDF - WI139; West Of Upper Jones Creek), Koyukuk District, Yukon-Koyukuk Census Area, Alaska, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01528_207_235285285285207_235 zircon   Zircon  201954Unnamed Occurrence (ARDF - WI139; West Of Upper Jones Creek), Koyukuk District, Yukon-Koyukuk Census Area, Alaska, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01529_206_238276276276206_238 zircon   Zircon  201954Unnamed Occurrence (ARDF - WI139; West Of Upper Jones Creek), Koyukuk District, Yukon-Koyukuk Census Area, Alaska, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01529_207_206367367367207_206 zircon   Zircon  201954Unnamed Occurrence (ARDF - WI139; West Of Upper Jones Creek), Koyukuk District, Yukon-Koyukuk Census Area, Alaska, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01529_207_235285285285207_235 zircon   Zircon  201954Unnamed Occurrence (ARDF - WI139; West Of Upper Jones Creek), Koyukuk District, Yukon-Koyukuk Census Area, Alaska, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01530_206_238268268268206_238age of volcanismzircon   Zircon  201954Unnamed Occurrence (ARDF - WI139; West Of Upper Jones Creek), Koyukuk District, Yukon-Koyukuk Census Area, Alaska, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01530_207_206378378378207_206age of volcanismzircon   Zircon  201954Unnamed Occurrence (ARDF - WI139; West Of Upper Jones Creek), Koyukuk District, Yukon-Koyukuk Census Area, Alaska, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01530_207_235279279279207_235age of volcanismzircon   Zircon  201954Unnamed Occurrence (ARDF - WI139; West Of Upper Jones Creek), Koyukuk District, Yukon-Koyukuk Census Area, Alaska, USA USGS-U-Th-Pb USGS-U-Th-Pb 
podchrome-00929170170Permian-Jurassic (169-179 Ma 40Ar-39Ar)       Cr201964Unnamed Occurrences (ARDF - BT011; Near Caribou Mountain), Koyukuk District, Yukon-Koyukuk Census Area, Alaska, USACaribou MountainMoiser et al. (2012) USGSSIR2012_5157 
PorphCu-00244390390390      Bornite, Chalcopyrite, Magnetite, PyriteCu202772Venus Prospect, Koyukuk District, Yukon-Koyukuk Census Area, Alaska, USAVenusSinger et al. (2008) USGSOFR2008_1155 


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