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:
Lake Barchi Area, Aiyrtau, North Kazakhstan Region, Kazakhstan

Oldest recorded age at locality: 547
Youngest recorded age at locality: 521

mindat Locality ID: 18533
mindat URL: http://www.mindat.org/loc-18533.html

Tectonic Settings:

Total number of sublocalities beneath "Lake Barchi Area, Aiyrtau, North Kazakhstan Region, Kazakhstan": 0
Total number of bottom-level sublocalities: 0

Latitude: 53°15'0"N
Longitude: 68°25'0"E
Decimal Degree (lat, lon): 53.25,68.416666666667

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.

Andalusite	Baddeleyite	Calcite	Clay	Diamond	Epidote	Mica	None	Not in a structural group	Olivine
Perovskite	Pyroxene	Quartz	Spinel	Tridymite	Zircon

Aegirine ()*	Andalusite ()*	Augite ()*	Baddeleyite ()*	Calcite ()*
Diamond ()*	Diopside ()*	Forsterite ()*	Kyanite ()*	Magnetite ()*
Muscovite ()*	Nepheline ()*	Perovskite ()*	Phlogopite ()*	Quartz ()*
Sillimanite ()*	Spinel ()*	Zircon ()*	Zoisite ()*

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 C Ca Fe H K Mg Na O Si Ti Zr

Elements from minerals reported directly at this locality: Al C Ca Fe H K Mg Na O Si Ti Zr

Structural Groups for minerals in this locality:
Andalusite Baddeleyite Calcite Clay Diamond Epidote Mica None Not in a structural group Olivine
Perovskite Pyroxene Quartz Spinel Tridymite 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	547	521	1022
Andalusite ()*	Andalusite	Al₂SiO₅	547	521	1310
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	547	521	2060
Baddeleyite ()*	Baddeleyite	ZrO₂	547	521	238
Calcite ()*	Calcite	Ca(CO₃)	547	521	27770
Diamond ()*	Diamond	C	547	521	697
Diopside ()*	Pyroxene	CaMgSi₂O₆	547	521	4135
Forsterite ()*	Olivine	Mg₂(SiO₄)	547	521	1188
Kyanite ()*	Not in a structural group	Al₂OSiO₄	547	521	1507
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	547	521	14899
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	547	521	17380
Nepheline ()*	Tridymite	Na₃K(Al₄Si₄O₁₆)	547	521	884
Perovskite ()*	Perovskite	CaTiO₃	547	521	495
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	547	521	2273
Quartz ()*	Quartz	SiO₂	547	521	61156
Sillimanite ()*	Not in a structural group	Al₂SiO₅	547	521	1516
Spinel ()*	Spinel	MgAl₂O₄	547	521	1934
Zircon ()*	Zircon	Zr(SiO₄)	547	521	5251
Zoisite ()*	Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	547	521	1025

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Jen_0000902	MAGMATIC STYLE: Veins and lens-like bodies. ASSOCIATED SILICATE ROCKS: Pyroxenite, gabbro, malignite, sviatonossite, pulaskite, shonkinite, nepheline syenite and syenite.
Jen_0000903	MAGMATIC STYLE: Veins and lens-like bodies. ASSOCIATED SILICATE ROCKS: Pyroxenite, gabbro, malignite, sviatonossite, pulaskite, shonkinite, nepheline syenite and syenite.

2 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_0000902	534	534	534	K-Ar										18533	Lake Barchi Area, Aiyrtau, North Kazakhstan Region, Kazakhstan	Barchinskii	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
	Jen_0000903	547	521	547-521	K-Ar										18533	Lake Barchi Area, Aiyrtau, North Kazakhstan Region, Kazakhstan	Barchinskii	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...