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:
Speråstjønn Feldspar Prospect, Evje Og Hornnes, Aust-Agder, Norway

Oldest recorded age at locality: 923
Youngest recorded age at locality: 895

mindat Locality ID: 301087
mindat URL: http://www.mindat.org/loc-301087.html

Tectonic Settings:

Total number of sublocalities beneath "Speråstjønn Feldspar Prospect, Evje Og Hornnes, Aust-Agder, Norway": 0
Total number of bottom-level sublocalities: 0

Latitude: 58°33'51"N
Longitude: 7°55'11"E
Decimal Degree (lat, lon): 58.564166666667,7.9197222222222

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.

No IMA Minerals occur at this locality according to mindat

4 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Sample Source	Sample Num	Age from other Locality	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
Bradley_2012_119	913	909	911±2	U/Pb	gadolinite		Yes			5491	Evje Og Hornnes, Aust-Agder, Norway	Evje	McCauley and Bradley (2014)	10.3749/canmin.52.2.183	CM52_183
Mo-00067	914	904	909±5	Rb-Sr			Yes	Molybdenite	Mo	5491	Evje Og Hornnes, Aust-Agder, Norway	Evje-Iveland	Andersen (2001)		MT2001_Andersen
Mo-00068	923	895	909±14	U-Pb	gadolinite	gd-7	Yes	Molybdenite	Mo	5491	Evje Og Hornnes, Aust-Agder, Norway	Evje-Iveland	Scherer et al. (2001)	10.1126/science.1061372	S293_683
Mo-00069	912.1	908.9	910.5±1.6	U-Pb concordia	gadolinite	gd-5, gd-6, gd-7, gd-8	Yes	Molybdenite	Mo	5491	Evje Og Hornnes, Aust-Agder, Norway	Evje-Iveland	Scherer et al. (2001)	10.1126/science.1061372	S293_683

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...