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 Magnesite at Aktobe Region, Kazakhstan

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 427Ma - 248Ma 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
Alexandra-0077	427	394				185521	Kempirsai Cr Deposit, Kargaly, Aktobe Region, Kazakhstan	Melcher et al. (1999)	MD34_250
Nina_509	354	248				2211	Chelkar Salt Dome, Aksai Valley, Shalkar, Aktobe Region, Kazakhstan	Anissimov (1998)	PG4_1

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
Alexandra-0077	427	394				185521	Kempirsai Cr Deposit, Kargaly, Aktobe Region, Kazakhstan	Melcher et al. (1999)	MD34_250
Alexandra-0078	377.6	374.4				185521	Kempirsai Cr Deposit, Kargaly, Aktobe Region, Kazakhstan	Melcher et al. (1999)	MD34_250
Alexandra-0079	394.6	376.2				185521	Kempirsai Cr Deposit, Kargaly, Aktobe Region, Kazakhstan	Melcher et al. (1999)	MD34_250
Alexandra-0080	373.6	357.6				185521	Kempirsai Cr Deposit, Kargaly, Aktobe Region, Kazakhstan	Melcher et al. (1999)	MD34_250
Nina_509	354	248				2211	Chelkar Salt Dome, Aksai Valley, Shalkar, Aktobe Region, Kazakhstan	Anissimov (1998)	PG4_1