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 Carnotite at Federal American Mines (Federal American Open Pit), Gas Hills Mining District, Fremont Co., Wyoming, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 35Ma - 19Ma at this locality

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
Mo-00091	35	19		Jordisite, Umohoite, Ilsemannite	Mo	7200	Gas Hills Mining District, Fremont Co., Wyoming, USA	Dooley et al. (1974); Ludwig (1979)