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:
Poughkeepsie Gulch, Red Mountain District, San Juan Co., Colorado, USA

Oldest recorded age at locality: 380
Youngest recorded age at locality: 20

mindat Locality ID: 25147
mindat URL: http://www.mindat.org/loc-25147.html

Tectonic Settings:

Total number of sublocalities beneath "Poughkeepsie Gulch, Red Mountain District, San Juan Co., Colorado, USA": 5
Total number of bottom-level sublocalities: 5

Number of Child Localities: 5
Child Localities:
Forest Mine
Gladiator Mine
Old Lout Mine
Saxon Mine
Yankee Girl Mine

Latitude: 37°55'56"N
Longitude: 107°37'56"W
Decimal Degree (lat, lon): 37.932222222222,-107.63222222222
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 Ba Bi C Cu Fe H K Mn O Pb S Sb Si Zn 

Elements from minerals reported directly at this locality: Ag Sb 

Structural Groups for minerals in this locality: 
AllargentumBaryteBournoniteCalciteChalcopyriteClayCovelliteEnargiteKaoliniteLillianite
MarcasiteMeneghiniteMicaNonePavonitePyriteQuartzRocksaltSphaleriteStibnite
TetrahedriteWurtzite

32 IMA Minerals at location:
Aikinite  (*)Baryte  (*)Benjaminite  (*)Bismuthinite  (*)Bornite  (*)
Bournonite  (*)Chalcocite  (*)Chalcopyrite  (*)Cosalite  (*)Covellite  (*)
Dyscrasite  (*)Enargite  (*)Freibergite  (*)Galena  (*)Gustavite  (*)
Kaolinite  (*)Marcasite  (*)Matildite  (*)Miargyrite  (*)Muscovite  (*)
Ourayite  (*)Pavonite  (*)Proustite  (*)Pyrite  (*)Quartz  (*)
Rhodochrosite  (*)Sphalerite  (*)Stephanite  (*)Stromeyerite  (*)Tennantite-(Fe)  (*)
Tetrahedrite-(Zn)  (*)Wittichenite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Aikinite  (*)MeneghiniteCuPbBiS326202196554,196555315
Baryte  (*)BaryteBa(SO4)26204196553,196555,196556,19655711547
Benjaminite  (*)PavoniteAg3Bi7S122620119655545
Bismuthinite  (*)StibniteBi2S326202196554,1965551935
Bornite  (*)NoneCu5FeS4262011965575516
Bournonite  (*)BournoniteCuPbSbS3262011965571089
Chalcocite  (*)NoneCu2S262011965575707
Chalcopyrite  (*)ChalcopyriteCuFeS226205196553,196554,196555,196556,19655727198
Cosalite  (*)NonePb2Bi2S526202196554,196556344
Covellite  (*)CovelliteCuS262011965554165
Dyscrasite  (*)AllargentumAg3+xSb1-x (x ≈ 0.2)26200180
Enargite  (*)Enargite WurtziteCu3AsS426201196557910
Freibergite  (*)TetrahedriteAg6[Cu4Fe2]Sb4S1226201196556663
Galena  (*)RocksaltPbS26205196553,196554,196555,196556,19655724243
Gustavite  (*)LillianiteAgPbBi3S626202196554,196555113
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)4262011965535591
Marcasite  (*)MarcasiteFeS2262011965555674
Matildite  (*)NoneAgBiS226202196554,196555252
Miargyrite  (*)NoneAgSbS226201196557300
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)22620119655317380
Ourayite  (*)LillianiteAg3Pb4Bi5S132620119655524
Pavonite  (*)PavoniteAgBi3S526202196554,19655572
Proustite  (*)NoneAg3AsS326201196557733
Pyrite  (*)PyriteFeS226204196553,196554,196555,19655639462
Quartz  (*)QuartzSiO226205196553,196554,196555,196556,19655761156
Rhodochrosite  (*)CalciteMn(CO3)262011965571711
Sphalerite  (*)SphaleriteZnS26205196553,196554,196555,196556,19655721482
Stephanite  (*)NoneAg5SbS426201196556586
Stromeyerite  (*)NoneCuAgS26201196557332
Tennantite-(Fe)  (*)TetrahedriteCu6(Cu4Fe2)As4S1326202196554,1965571803
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S1326204196553,196554,196555,1965565317
Wittichenite  (*)NoneCu3BiS326201196555297


3 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
Giersdorf_00000596242022±2238U-206U uraniniteK-172 YesUraniniteUraniniteU4142Happy Jack Mine (Blue Dike Mine), White Canyon, White Canyon District, San Juan Co., Utah, USAHappy Jack MineMiller et al. (1963)10.1130/0016-7606(1963)74[609:IEOTOO]2.0.CO;2GSAB74_609Age given for U238-Pb206 analysis
Giersdorf_00000597262224±2235U-207Pb uraniniteK-172 YesUraniniteUraniniteU4142Happy Jack Mine (Blue Dike Mine), White Canyon, White Canyon District, San Juan Co., Utah, USAHappy Jack MineMiller et al. (1963)10.1130/0016-7606(1963)74[609:IEOTOO]2.0.CO;2GSAB74_609Age given for U235-Pb207 analysis
Giersdorf_00000598380280330±50207Pb-206PbThe Pb207-Pb206 age given for these samples is described as being highly erroneous due to the systematic sensitivity of the analytic methodslowuraniniteK-172 YesUraniniteUraniniteU4142Happy Jack Mine (Blue Dike Mine), White Canyon, White Canyon District, San Juan Co., Utah, USAHappy Jack MineMiller et al. (1963)10.1130/0016-7606(1963)74[609:IEOTOO]2.0.CO;2GSAB74_609Age given for Pb207-Pb206 analysis

SampleSource LocalityReference URL

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