Ages for Quartz at Crook Co., Wyoming, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 49.79Ma - 49.45Ma 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
  NAVDAT-92320	49.79	49.45				7171	Artic II Mine, Crook Co., Wyoming, USA	NAVDAT	NAVDAT

• 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
  Jen_0000651	44.5	44.5	Sanidine			171571	Bear Lodge Mountains Occurrence, Bear Lodge Mining District, Crook Co., Wyoming, USA	Woolley and Kjarsgaard (2008)	GSCOF5796
  Jen_0000652	50.5	38.5	Sanidine			171571	Bear Lodge Mountains Occurrence, Bear Lodge Mining District, Crook Co., Wyoming, USA	Woolley and Kjarsgaard (2008)	GSCOF5796
  NAVDAT-11071	50	38				172332	Homes Fire Lode 43 Prospect, Northern Black Hills Mining District, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-11074	50	38				174163	Unknown Fluorine-Fluorite Occurrence (MRDS - 10279340), Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-11082	50	38				174541	Unknown Thorium Prospect (MRDS - 10181723), Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-11090	50	38				174541	Unknown Thorium Prospect (MRDS - 10181723), Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-11095	50	38				173275	Potluck 1 & 2 Occurrence, Bear Lodge Mining District, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-11101	50	38				174541	Unknown Thorium Prospect (MRDS - 10181723), Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-11112	50	38				171887	Corral Spring Prospect, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-11119	50	38				172332	Homes Fire Lode 43 Prospect, Northern Black Hills Mining District, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-11137	50	38				172332	Homes Fire Lode 43 Prospect, Northern Black Hills Mining District, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-11140	50	38				171571	Bear Lodge Mountains Occurrence, Bear Lodge Mining District, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-11143	50	38				172332	Homes Fire Lode 43 Prospect, Northern Black Hills Mining District, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-11147	50	38				172332	Homes Fire Lode 43 Prospect, Northern Black Hills Mining District, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-8345	51.7	49.3				175548	Warren Peaks Occurrence, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-8347	51.7	49.3				172332	Homes Fire Lode 43 Prospect, Northern Black Hills Mining District, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-8350	51.7	49.3				171825	Climax No. 10 Prospect, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-8352	51.7	49.3				172892	Lytle Creek Prospect, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-8356	51.7	49.3				171887	Corral Spring Prospect, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-8362	51.7	49.3				174541	Unknown Thorium Prospect (MRDS - 10181723), Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-8364	53.35	43.65				174541	Unknown Thorium Prospect (MRDS - 10181723), Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-8365	53.35	43.65				174541	Unknown Thorium Prospect (MRDS - 10181723), Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-8411	51.1	36.7				171452	American Colloid Pits, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-8412	51.1	36.7				171452	American Colloid Pits, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-8413	51.1	36.7				7180	Copper Prince Mine, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-8414	51.1	36.7				7180	Copper Prince Mine, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-8416	51.1	36.7				7180	Copper Prince Mine, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-8417	51.1	36.7				7180	Copper Prince Mine, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-8419	51.1	36.7				7180	Copper Prince Mine, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-8420	51.1	36.7				172443	Jim Wayne Canyon, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-8421	51.1	36.7				172443	Jim Wayne Canyon, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-8422	51.1	36.7				172443	Jim Wayne Canyon, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-8425	51.1	36.7				172443	Jim Wayne Canyon, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-8426	51.1	36.7				172443	Jim Wayne Canyon, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-8437	51.1	36.7				175548	Warren Peaks Occurrence, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-8456	63.5	36.7				174541	Unknown Thorium Prospect (MRDS - 10181723), Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-9056	58.9	49.4				7180	Copper Prince Mine, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-9065	58.9	49.4				172443	Jim Wayne Canyon, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-92280	58	46				174541	Unknown Thorium Prospect (MRDS - 10181723), Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-92282	58	46				172443	Jim Wayne Canyon, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-92285	58	46				171762	Carbonate Claims (Black Buttes Lead-Zinc Prospect), Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  NAVDAT-92320	49.79	49.45				7171	Artic II Mine, Crook Co., Wyoming, USA	NAVDAT	NAVDAT
  ree-00653	50.5	38.3	Sanidine			171571	Bear Lodge Mountains Occurrence, Bear Lodge Mining District, Crook Co., Wyoming, USA	Orris and Grauch (2002)	USGSOFR02_189