Ages for Powellite at Kern Co., California, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 100Ma - 90Ma 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
  Bradley_2012_156	100	90	Zircon			213077	Tehachapi Mts, Kern Co., California, USA	McCauley and Bradley (2014)	CM52_183

• 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
  Bradley_2012_156	100	90	Zircon			213077	Tehachapi Mts, Kern Co., California, USA	McCauley and Bradley (2014)	CM52_183
  Michelle_424	152	140	Zircon			218055	Piute Mts, Kern Co., California, USA	Chen and Moore (1982)	AJS299_93
  NAVDAT-12532	17.6	16.6				271540	Black Mountain, El Paso Mountains District, El Paso Mts, Kern Co., California, USA	NAVDAT	NAVDAT
  NAVDAT-12533	15.6	14.6				271540	Black Mountain, El Paso Mountains District, El Paso Mts, Kern Co., California, USA	NAVDAT	NAVDAT
  NAVDAT-12534	19.5	16.3				271540	Black Mountain, El Paso Mountains District, El Paso Mts, Kern Co., California, USA	NAVDAT	NAVDAT
  NAVDAT-12540	19.8	16.2				80466	Scorpion Claim, Black Mountain, El Paso Mountains District, El Paso Mts, Kern Co., California, USA	NAVDAT	NAVDAT
  NAVDAT-15391	110	90				79934	Cyrus Canyon Mine (Big Raymond Nos. 1-4 Claims; Raymond; Syrus Canyon), Old Kernville, Cove District, Kern Co., California, USA	NAVDAT	NAVDAT
  NAVDAT-21820	17	0				211804	Bissell, Kern Co., California, USA	NAVDAT	NAVDAT
  NAVDAT-44299	150	147				80168	Kerntung Group, Morris Peak, Indian Wells Canyon District, Kern Co., California, USA	NAVDAT	NAVDAT
  NAVDAT-5633	132	108				80012	Garces Highway Quarry, Woody (Weringdale), Woody District, Kern Co., California, USA	NAVDAT	NAVDAT
  NAVDAT-5643	89.1	72.9				80480	Shumaker DG Pit (Buesee Hills Pit), Tehachapi, Tehachapi Mts, Kern Co., California, USA	NAVDAT	NAVDAT
  NAVDAT-5644	88	72				80154	K. S. Dixon Wild Cat Mine (Baltic Mine), Tehachapi, Tehachapi Mts, Kern Co., California, USA	NAVDAT	NAVDAT
  NAVDAT-5645	89.1	72.9				213078	Tehachapi, Tehachapi Mts, Kern Co., California, USA	NAVDAT	NAVDAT
  Scott-OLEB41_307-0001	19	19				80184	Kramer Borate Deposit, Boron, Kramer District (Kramer Borate District), Kern Co., California, USA	Grew et al. (2011)	OLEB41_307
  USGS-U-Th-Pb-02507_206_238	113	113	Zircon			272637	Purdie Ridge, Tehachapi Mts, Kern Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
  USGS-U-Th-Pb-02507_207_206	108	108	Zircon			272637	Purdie Ridge, Tehachapi Mts, Kern Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
  USGS-U-Th-Pb-02507_207_235	113.1	113.1	Zircon			272637	Purdie Ridge, Tehachapi Mts, Kern Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb