Ages for Quartz at Yuma Co., Arizona, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 23.2Ma - 20.49Ma 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
  Giersdorf_00000402	23.2	21.8				33582	Muggins District, Muggins Mts, Yuma Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
  Giersdorf_00000406	21.57	20.49				33271	Alamo Springs District, Kofa Mts (S.H. Mts), Yuma Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201

• 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_00000340	171	163				18497	Yuma Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
  Giersdorf_00000341	1080	1080				18497	Yuma Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
  Giersdorf_00000372	53.8	51.2				51858	McMillan Prospect, Barry M. Goldwater Air Force Range, Cabeza Prieta Mts, La Posa District (Wellton District; Wellton Hills District), Wellton Hills-Copper Mts, Yuma Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
  Giersdorf_00000383	31.1	29.1				33531	Laguna District (Las Flores District), Laguna Mts (San Pablo Mts), Yuma Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
  Giersdorf_00000397	24.3	23.1				18497	Yuma Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
  Giersdorf_00000402	23.2	21.8				33582	Muggins District, Muggins Mts, Yuma Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
  Giersdorf_00000406	21.57	20.49				33271	Alamo Springs District, Kofa Mts (S.H. Mts), Yuma Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
  Giersdorf_00000435	18.33	17.29				187743	Cabeza Prieta Mts, Yuma Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
  Giersdorf_00000444	16.53	15.71				187743	Cabeza Prieta Mts, Yuma Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
  Giersdorf_00000452	14.32	13.68				18497	Yuma Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
  Giersdorf_00000454	14.2	13.6				18497	Yuma Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
  USGS-Rb-Sr-01679	68.52	68.52				33852	Jude Mine Group (Silverfields Mine), Yuma, Yuma District, Yuma Co., Arizona, USA	USGS-Rb-Sr	USGS-Rb-Sr

• 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
  Jen_0000066	70	70				33852	Jude Mine Group (Silverfields Mine), Yuma, Yuma District, Yuma Co., Arizona, USA	Wasserburg and Lanphere (1965)	GSAB76_735