Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

Important Update News

The RRUFF Project has been migrated to RRUFF.net. Please update your bookmarks immediately, if you have not done so.

The data on this website is already three years out of date, and the entire website will be taken offline before the end of the year.

We are grateful to NASA for the funding of this effort.

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:
Red Syenite Dikes, Gem Park Complex, Fremont Co., Colorado, USA

Oldest recorded age at locality: 551
Youngest recorded age at locality: 551

mindat Locality ID: 243027
mindat URL: http://www.mindat.org/loc-243027.html

Tectonic Settings:

Total number of sublocalities beneath "Red Syenite Dikes, Gem Park Complex, Fremont Co., Colorado, 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.

Apatite	Baryte	Calcite	Chalcopyrite	Corundum	Diaspore	Feldspar	Fluorite	Lepidocrocite	None
Not in a structural group	Pyrite	Pyroxene	Quartz	Rhabdophane	Rocksalt	Rutile	Zircon

Aegirine ()*	Albite ()*	Anatase ()*	Baryte ()*	Brockite ()*
Calcite ()*	Chalcopyrite ()*	Dolomite ()*	Fluorapatite ()*	Fluorite ()*
Galena ()*	Goethite ()*	Hematite ()*	Lepidocrocite ()*	Pyrite ()*
Quartz ()*	Rutile ()*	Thorite ()*	Zircon ()*

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 Ba C Ca Ce Cu F Fe H Mg Na O P Pb S Si Th Ti Zr

Elements from minerals reported directly at this locality: Al Ba C Ca Ce Cu F Fe H Mg Na O P Pb S Si Th Ti Zr

Structural Groups for minerals in this locality:
Apatite Baryte Calcite Chalcopyrite Corundum Diaspore Feldspar Fluorite Lepidocrocite None
Not in a structural group Pyrite Pyroxene Quartz Rhabdophane Rocksalt Rutile Zircon

19 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Aegirine ()*	Pyroxene	NaFe³⁺Si₂O₆	551	551	1022
Albite ()*	Feldspar	Na(AlSi₃O₈)	551	551	8803
Anatase ()*	Not in a structural group	TiO₂	551	551	2162
Baryte ()*	Baryte	Ba(SO₄)	551	551	11547
Brockite ()*	Rhabdophane	(Ca,Th,Ce)(PO₄)·H₂O	551	551	48
Calcite ()*	Calcite	Ca(CO₃)	551	551	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	551	551	27198
Dolomite ()*	None	CaMg(CO₃)₂	551	551	9895
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	551	551	2740
Fluorite ()*	Fluorite	CaF₂	551	551	9617
Galena ()*	Rocksalt	PbS	551	551	24243
Goethite ()*	Diaspore	FeO(OH)	551	551	7437
Hematite ()*	Corundum	Fe₂O₃	551	551	14640
Lepidocrocite ()*	Lepidocrocite	Fe³⁺O(OH)	551	551	581
Pyrite ()*	Pyrite	FeS₂	551	551	39462
Quartz ()*	Quartz	SiO₂	551	551	61156
Rutile ()*	Rutile	TiO₂	551	551	5614
Thorite ()*	Zircon	Th(SiO₄)	551	551	1006
Zircon ()*	Zircon	Zr(SiO₄)	551	551	5251

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Jen_0000904	MAGMATIC STYLE: Dykes and small plug (Pine Creek). ASSOCIATED SILICATE ROCKS: Pyroxenite, gabbro, nepheline syenite, lamprophyre, fenite.

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
	Jen_0000904	551	551	551	K-Ar			riebeckite			Yes	Riebeckite			24296	Gem Park Complex, Fremont Co., Colorado, USA	Gem Park	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...