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 Sphalerite at Mascot-Jefferson City Zinc District, Knox Co., Tennessee, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 385Ma - 288Ma 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
GCA57_417-00019	385	385	Sphalerite			128963	Immel Zinc Mine, Mascot-Jefferson City Zinc District, Knox Co., Tennessee, USA	Nakai et al. (1993)	GCA57_417
GCA57_417-00009	288	288	Sphalerite			128963	Immel Zinc Mine, Mascot-Jefferson City Zinc District, Knox Co., Tennessee, USA	Nakai et al. (1993)	GCA57_417

Direct 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
GCA57_417-00001	347	347	Sphalerite			128963	Immel Zinc Mine, Mascot-Jefferson City Zinc District, Knox Co., Tennessee, USA	Nakai et al. (1993)	GCA57_417
GCA57_417-00003	318	318	Sphalerite			128963	Immel Zinc Mine, Mascot-Jefferson City Zinc District, Knox Co., Tennessee, USA	Nakai et al. (1993)	GCA57_417
GCA57_417-00005	349	349	Sphalerite			128963	Immel Zinc Mine, Mascot-Jefferson City Zinc District, Knox Co., Tennessee, USA	Nakai et al. (1993)	GCA57_417
GCA57_417-00007	357	357	Sphalerite			128963	Immel Zinc Mine, Mascot-Jefferson City Zinc District, Knox Co., Tennessee, USA	Nakai et al. (1993)	GCA57_417
GCA57_417-00009	288	288	Sphalerite			128963	Immel Zinc Mine, Mascot-Jefferson City Zinc District, Knox Co., Tennessee, USA	Nakai et al. (1993)	GCA57_417
GCA57_417-00011	298	298	Sphalerite			128963	Immel Zinc Mine, Mascot-Jefferson City Zinc District, Knox Co., Tennessee, USA	Nakai et al. (1993)	GCA57_417
GCA57_417-00013	309	309	Sphalerite			128963	Immel Zinc Mine, Mascot-Jefferson City Zinc District, Knox Co., Tennessee, USA	Nakai et al. (1993)	GCA57_417
GCA57_417-00015	329	329	Sphalerite			128963	Immel Zinc Mine, Mascot-Jefferson City Zinc District, Knox Co., Tennessee, USA	Nakai et al. (1993)	GCA57_417
GCA57_417-00017	338	338	Sphalerite			128963	Immel Zinc Mine, Mascot-Jefferson City Zinc District, Knox Co., Tennessee, USA	Nakai et al. (1993)	GCA57_417
GCA57_417-00019	385	385	Sphalerite			128963	Immel Zinc Mine, Mascot-Jefferson City Zinc District, Knox Co., Tennessee, USA	Nakai et al. (1993)	GCA57_417