Ages for Powellite at Timber Knob, Madera Co., California, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 146Ma - 90.1Ma 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
  NAVDAT-9126	146	100	Zircon			248235	Timber Knob, Madera Co., California, USA	NAVDAT	NAVDAT
  USGS-Rb-Sr-07071	99.3	90.1				81667	Jimmie Claim, Timber Knob, Madera Co., California, USA	USGS-Rb-Sr	USGS-Rb-Sr
  USGS-Rb-Sr-07074	99.3	90.1				248235	Timber Knob, Madera Co., California, USA	USGS-Rb-Sr	USGS-Rb-Sr