Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org

Ages for Nepheline at Otjozondjupa Region, Namibia

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 172.8Ma - 119.3Ma at this locality

Age range from children

Excel ID	Max Age (Ma)	Min Age (Ma)	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	Dated Locality ID	Dated Locality	Ref	Ref ID
Jen_0000462	172.8	153.6				73245	Kalkfeld Complex, Kalkfeld, Omatako, Otjozondjupa Region, Namibia	Ernst and Bell (2010)	MP98_55
Jen_0000739	133.9	119.3				5842	Okorusu Mine (Okarusu Mine), Otjiwarongo, Otjozondjupa Region, Namibia	Woolley and Kjarsgaard (2008)	GSCOF5796

Locality age

Excel ID	Max Age (Ma)	Min Age (Ma)	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	Dated Locality ID	Dated Locality	Ref	Ref ID
CGSN10_99-Kombat	600	600				235838	Kombat, Grootfontein, Otjozondjupa Region, Namibia	Deane (1995)	CGSN10_99
Jen_0000462	172.8	153.6				73245	Kalkfeld Complex, Kalkfeld, Omatako, Otjozondjupa Region, Namibia	Ernst and Bell (2010)	MP98_55
Jen_0000739	133.9	119.3				5842	Okorusu Mine (Okarusu Mine), Otjiwarongo, Otjozondjupa Region, Namibia	Woolley and Kjarsgaard (2008)	GSCOF5796
Jen_0000780	163.2	163.2				73245	Kalkfeld Complex, Kalkfeld, Omatako, Otjozondjupa Region, Namibia	Woolley and Kjarsgaard (2008)	GSCOF5796
Jen_0000781	153.6	153.6				73245	Kalkfeld Complex, Kalkfeld, Omatako, Otjozondjupa Region, Namibia	Woolley and Kjarsgaard (2008)	GSCOF5796
Jen_0000782	172.8	172.8				73245	Kalkfeld Complex, Kalkfeld, Omatako, Otjozondjupa Region, Namibia	Woolley and Kjarsgaard (2008)	GSCOF5796
ree-00478	201	145				158049	Etaneno, Kalkfeld, Omatako, Otjozondjupa Region, Namibia	Orris and Grauch (2002)	USGSOFR02_189
ree-00481	133.9	119.3				5842	Okorusu Mine (Okarusu Mine), Otjiwarongo, Otjozondjupa Region, Namibia	Orris and Grauch (2002)	USGSOFR02_189
sedexmvt-00186	750	750				2424	Berg Aukas Mine (Berg Aukus Mine), Grootfontein, Otjozondjupa Region, Namibia	Taylor et al. (2009)	USGSOFR2009_1297
sedznpb-00339	601	537				2427	Kombat Mine (Klein Otavi; Asis), Kombat, Grootfontein, Otjozondjupa Region, Namibia	Singer et al. (2009)	USGSOFR2009-1252