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 Owl Head District, Tortolita Mts, Pinal Co., Arizona, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 28.4Ma - 27Ma 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
Giersdorf_00000388	28.4	27				68675	Owl Head Mine (Owl Head Claims), Brady Wash Area, Durham Hills, Durham-Suizo District, Pinal Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201

Locality age (remote)

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
Giersdorf_00000388	28.4	27				68675	Owl Head Mine (Owl Head Claims), Brady Wash Area, Durham Hills, Durham-Suizo District, Pinal Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201