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:
Green River Formation, Duchesne Co., Utah, USA

Oldest recorded age at locality: 51.3
Youngest recorded age at locality: 45.1

mindat Locality ID: 37759
mindat URL: http://www.mindat.org/loc-37759.html

Tectonic Settings:

Total number of sublocalities beneath "Green River Formation, Duchesne Co., Utah, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The 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.

Amphibole	Analcime	Apatite	Burbankite	Clay	Feldspar	Mica	None	Northupite	Not in a structural group
Pyrite	Pyroxene	Rhabdophane

Aegirine ()*	Analcime ()*	Anhydrite ()*	Bassanite ()*	Burbankite ()*
Dawsonite ()*	Eitelite ()*	Fluorapatite ()*	Hectorite ()*	Leucosphenite ()*
Loughlinite ()*	Magnesio-arfvedsonite ()*	Magnesio-riebeckite ()*	Muscovite ()*	Nahcolite ()*
Nordstrandite ()*	Northupite ()*	Pyrite ()*	Reedmergnerite ()*	Riebeckite ()*
Searlesite ()*	Shortite ()*	Thermonatrite ()*	Trona ()*

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 B Ba C Ca Ce Cl F Fe H K Li Mg Na O P S Si Sr Ti

Elements from minerals reported directly at this locality: Al B Ba C Ca Ce Cl F Fe H K Li Mg Na O P S Si Sr Ti

Structural Groups for minerals in this locality:
Amphibole Analcime Apatite Burbankite Clay Feldspar Mica None Northupite Not in a structural group
Pyrite Pyroxene Rhabdophane

24 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Aegirine ()*	Pyroxene	NaFe³⁺Si₂O₆	51.3	45.1	1022
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O	51.3	45.1	1627
Anhydrite ()*	Not in a structural group	Ca(SO₄)	51.3	45.1	1588
Bassanite ()*	Rhabdophane	Ca(SO₄)·0.5H₂O	51.3	45.1	82
Burbankite ()*	Burbankite	(Na,Ca)₃(Sr,Ba,Ce)₃(CO₃)₅	51.3	45.1	52
Dawsonite ()*	None	NaAl(CO₃)(OH)₂	51.3	45.1	90
Eitelite ()*	None	Na₂Mg(CO₃)₂	51.3	45.1	20
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	51.3	45.1	2740
Hectorite ()*	Clay	Na_0.3(Mg,Li)₃Si₄O₁₀(F,OH)₂·nH₂O	51.3	45.1	19
Leucosphenite ()*	None	Na₄BaTi₂B₂Si₁₀O₃₀	51.3	45.1	19
Loughlinite ()*	Clay	Na₂Mg₃Si₆O₁₆·8H₂O	51.3	45.1	6
Magnesio-arfvedsonite ()*	Amphibole	NaNa₂(Mg₄Fe³⁺)Si₈O₂₂(OH)₂	51.3	45.1	79
Magnesio-riebeckite ()*	Amphibole	Na₂(Mg₃Fe³⁺₂)Si₈O₂₂(OH)₂	51.3	45.1	93
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	51.3	45.1	17380
Nahcolite ()*	None	NaH(CO₃)	51.3	45.1	78
Nordstrandite ()*	None	Al(OH)₃	51.3	45.1	64
Northupite ()*	Northupite	Na₃Mg(CO₃)₂Cl	51.3	45.1	31
Pyrite ()*	Pyrite	FeS₂	51.3	45.1	39462
Reedmergnerite ()*	Feldspar	NaBSi₃O₈	51.3	45.1	9
Riebeckite ()*	Amphibole	Na₂(Fe²⁺₃Fe³⁺₂)Si₈O₂₂(OH)₂	51.3	45.1	375
Searlesite ()*	None	NaBSi₂O₅(OH)₂	51.3	45.1	34
Shortite ()*	None	Na₂Ca₂(CO₃)₃	51.3	45.1	37
Thermonatrite ()*	None	Na₂(CO₃)·H₂O	51.3	45.1	64
Trona ()*	None	Na₃(HCO₃)(CO₃)·2H₂O	51.3	45.1	129

1 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	Scott-GSAM120_54-0001	51.3	45.1	51.3-45.1	40Ar-39Ar	Date of evaporation		biotite					Hectorite		37759	Green River Formation, Duchesne Co., Utah, USA	Green River Formation	Smith et al. 2008	10.1130/B26073.1	GSAM120_54	p. 54 "Evaporative (underfilled) lakes occurred"

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...