Ages for Uraninite at Uravan District, Mesa Co., Colorado, USA

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

• 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
  Giersdorf_00000608	80	80	Coffinite	Coffinite		115884	Matchless Mine, Calamity Mesa, Uravan District, Mesa Co., Colorado, USA	Miller et al. (1963)	GSAB74_609
  Giersdorf_00000609	96	96	Coffinite	Coffinite		115884	Matchless Mine, Calamity Mesa, Uravan District, Mesa Co., Colorado, USA	Miller et al. (1963)	GSAB74_609
  Giersdorf_00000620	90	90	Coffinite	Coffinite		115736	Black Mama (Peaches Black Mama), Tenderfoot Mesa, Uravan District, Mesa Co., Colorado, USA	Miller et al. (1963)	GSAB74_609
  Giersdorf_00000621	106	106	Coffinite	Coffinite		115736	Black Mama (Peaches Black Mama), Tenderfoot Mesa, Uravan District, Mesa Co., Colorado, USA	Miller et al. (1963)	GSAB74_609

• Locality age (deprioritized)

• 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_00000610	500	500	Coffinite	Coffinite		115884	Matchless Mine, Calamity Mesa, Uravan District, Mesa Co., Colorado, USA	Miller et al. (1963)	GSAB74_609
  Giersdorf_00000622	450	450	Coffinite	Coffinite		115736	Black Mama (Peaches Black Mama), Tenderfoot Mesa, Uravan District, Mesa Co., Colorado, USA	Miller et al. (1963)	GSAB74_609