Mineral Evolution Database

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

Mineral locality data provided by mindat.org

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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:
Bjurträsk, Norsjö, Västerbotten County, Sweden

Oldest recorded age at locality: 2500
Youngest recorded age at locality: 541

mindat Locality ID: 46412
mindat URL: http://www.mindat.org/loc-46412.html

Tectonic Settings:

Total number of sublocalities beneath "Bjurträsk, Norsjö, Västerbotten County, Sweden": 0
Total number of bottom-level sublocalities: 0

Latitude: 64°59'30"N
Longitude: 19°43'31"E
Decimal Degree (lat, lon): 64.991666666667,19.725277777778

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	Andalusite	Beryl	Chalcopyrite	Nickeline	None	Sphalerite	Spinel	Staurolite

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 Cu Fe H Mg O S Si Zn

Elements from minerals reported directly at this locality: Al Cu Fe H Mg O S Si Zn

Structural Groups for minerals in this locality:
Amphibole Andalusite Beryl Chalcopyrite Nickeline None Sphalerite Spinel Staurolite

8 IMA Minerals at location:

Andalusite ()*	Anthophyllite ()*	Chalcopyrite ()*	Cordierite ()*	Pyrrhotite ()*
Sphalerite ()*	Spinel ()*	Staurolite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Andalusite ()*	Andalusite	Al₂SiO₅	2500	541	1310
Anthophyllite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂	2500	541	718
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	2500	541	27198
Cordierite ()*	Beryl	Mg₂Al₄Si₅O₁₈	2500	541	1008
Pyrrhotite ()*	Nickeline	Fe₇S₈	2500	541	9056
Sphalerite ()*	Sphalerite	ZnS	2500	541	21482
Spinel ()*	Spinel	MgAl₂O₄	2500	541	1934
Staurolite ()*	Staurolite	Fe²⁺₂Al₉Si₄O₂₃(OH)	2500	541	978

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Giersdorf_00000487	The Sikträsk granite body is located south of the ore-bearing parts of the Skellefte Mining District.
Giersdorf_00000488	The Sikträsk granite body is located south of the ore-bearing parts of the Skellefte Mining District.
Giersdorf_00000489	The Sikträsk granite body is located south of the ore-bearing parts of the Skellefte Mining District.
Giersdorf_00000490	The Sikträsk granite body is located south of the ore-bearing parts of the Skellefte Mining District.
Giersdorf_00000491	The Sikträsk granite body is located south of the ore-bearing parts of the Skellefte Mining District.
Giersdorf_00000504	The Petikträsk mass flow sample represents a weakly altered felsic mass flow found in the deepest parts of the Skellefte mining district's stratigraphy.
Giersdorf_00000505	The Petikträsk mass flow sample represents a weakly altered felsic mass flow found in the deepest parts of the Skellefte mining district's stratigraphy.
Giersdorf_00000506	The Petikträsk mass flow sample represents a weakly altered felsic mass flow found in the deepest parts of the Skellefte mining district's stratigraphy.
Giersdorf_00000507	The Petikträsk mass flow sample represents a weakly altered felsic mass flow found in the deepest parts of the Skellefte mining district's stratigraphy.
Giersdorf_00000508	The Petikträsk mass flow sample represents a weakly altered felsic mass flow found in the deepest parts of the Skellefte mining district's stratigraphy.
Giersdorf_00000509	The Vargfors group is a series of supracrustal rocks that overlie the Skellefte group with no major unconformity.
Giersdorf_00000510	The Vargfors group is a series of supracrustal rocks that overlie the Skellefte group with no major unconformity.
Giersdorf_00000511	The Vargfors group is a series of supracrustal rocks that overlie the Skellefte group with no major unconformity.
Giersdorf_00000512	The Vargfors group is a series of supracrustal rocks that overlie the Skellefte group with no major unconformity.
Giersdorf_00000513	The Vargfors group is a series of supracrustal rocks that overlie the Skellefte group with no major unconformity.
Giersdorf_00000514	The Vargfors group is a series of supracrustal rocks that overlie the Skellefte group with no major unconformity.

17 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Num	Age from other Locality	Minerals explicitely stated as having this age	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
vms-00923	2500	541	Proterozoic							46412	Bjurträsk, Norsjö, Västerbotten County, Sweden	Bjurtrask	Moiser et al. (2009)		USGSOFR2009-1034
Giersdorf_00000504	1846	1846	1846	U-Pb			94016	Yes	Zircon	10734	Holmtjärn Mine, Norsjö, Västerbotten County, Sweden	Petikträsk mass flow	Billstrom et al. (1996)	10.2113/gsecongeo.91.6.1054	EG91_1054
Giersdorf_00000505	1890	1890	1890	U-Pb	Age of this sample is suspected to be a minimum crystallization age for the Petikträsk mass flow.		94016	Yes	Zircon	10734	Holmtjärn Mine, Norsjö, Västerbotten County, Sweden	Petikträsk mass flow	Billstrom et al. (1996)	10.2113/gsecongeo.91.6.1054	EG91_1054
Giersdorf_00000506	1857	1857	1857	U-Pb			94016	Yes	Zircon	10734	Holmtjärn Mine, Norsjö, Västerbotten County, Sweden	Petikträsk mass flow	Billstrom et al. (1996)	10.2113/gsecongeo.91.6.1054	EG91_1054
Giersdorf_00000507	1844	1844	1844	U-Pb			94016	Yes	Zircon	10734	Holmtjärn Mine, Norsjö, Västerbotten County, Sweden	Petikträsk mass flow	Billstrom et al. (1996)	10.2113/gsecongeo.91.6.1054	EG91_1054
Giersdorf_00000508	1850	1844	1847±3	U-Pb	The age of 1847±3 is acquired by discarding the 1890 result and using the best fit line of the concordia. This is done because it gives a deviating age from the rest of the sample and is strongly reverse discordant in contrast to the other samples. It do	high	94016	Yes	Zircon	10734	Holmtjärn Mine, Norsjö, Västerbotten County, Sweden	Petikträsk mass flow	Billstrom et al. (1996)	10.2113/gsecongeo.91.6.1054	EG91_1054	Intercept age for the Pb206/207 concordia of 3 of the above entries, ignoring the 1890 result.
Giersdorf_00000509	1879	1879	1879	U-Pb			94017	Yes	Zircon	27274	Mensträsk, Norsjö, Västerbotten County, Sweden	Vargfors ignimbrite	Billstrom et al. (1996)	10.2113/gsecongeo.91.6.1054	EG91_1054
Giersdorf_00000510	1873	1873	1873	U-Pb			94017	Yes	Zircon	27274	Mensträsk, Norsjö, Västerbotten County, Sweden	Vargfors ignimbrite	Billstrom et al. (1996)	10.2113/gsecongeo.91.6.1054	EG91_1054
Giersdorf_00000511	1873	1873	1873	U-Pb			94017	Yes	Zircon	27274	Mensträsk, Norsjö, Västerbotten County, Sweden	Vargfors ignimbrite	Billstrom et al. (1996)	10.2113/gsecongeo.91.6.1054	EG91_1054
Giersdorf_00000512	1876	1876	1876	U-Pb			94017	Yes	Zircon	27274	Mensträsk, Norsjö, Västerbotten County, Sweden	Vargfors ignimbrite	Billstrom et al. (1996)	10.2113/gsecongeo.91.6.1054	EG91_1054
Giersdorf_00000513	1872	1872	1872	U-Pb			94017	Yes	Zircon	27274	Mensträsk, Norsjö, Västerbotten County, Sweden	Vargfors ignimbrite	Billstrom et al. (1996)	10.2113/gsecongeo.91.6.1054	EG91_1054
Giersdorf_00000514	1878.6	1871.2	1874.9±3.7	U-Pb		high	94017	Yes	Zircon	27274	Mensträsk, Norsjö, Västerbotten County, Sweden	Vargfors ignimbrite	Billstrom et al. (1996)	10.2113/gsecongeo.91.6.1054	EG91_1054	Intercept age for the Pb206/207 concordia
Giersdorf_00000487	1850	1850	1850	U-Pb			91015	Yes	Zircon	18581	Petiknäs Mine, Boliden, Skellefte Mining District, Skellefteå, Västerbotten County, Sweden	Sikträsk granite body	Billstrom et al. (1996)	10.2113/gsecongeo.91.6.1054	EG91_1054
Giersdorf_00000488	1852	1852	1852	U-Pb			91015	Yes	Zircon	18581	Petiknäs Mine, Boliden, Skellefte Mining District, Skellefteå, Västerbotten County, Sweden	Sikträsk granite body	Billstrom et al. (1996)	10.2113/gsecongeo.91.6.1054	EG91_1054
Giersdorf_00000489	1851	1851	1851	U-Pb			91015	Yes	Zircon	18581	Petiknäs Mine, Boliden, Skellefte Mining District, Skellefteå, Västerbotten County, Sweden	Sikträsk granite body	Billstrom et al. (1996)	10.2113/gsecongeo.91.6.1054	EG91_1054
Giersdorf_00000490	1844	1844	1844	U-Pb			91015	Yes	Zircon	18581	Petiknäs Mine, Boliden, Skellefte Mining District, Skellefteå, Västerbotten County, Sweden	Sikträsk granite body	Billstrom et al. (1996)	10.2113/gsecongeo.91.6.1054	EG91_1054
Giersdorf_00000491	1862.9	1845.1	1854±8.9	U-Pb		high	91015	Yes	Zircon	18581	Petiknäs Mine, Boliden, Skellefte Mining District, Skellefteå, Västerbotten County, Sweden	Sikträsk granite body	Billstrom et al. (1996)	10.2113/gsecongeo.91.6.1054	EG91_1054	Intercept age for the Pb206/207 concordia

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...