Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org

Ages for Chalcopyrite at Picacho, Picacho District, Chocolate Mts, Imperial Co., California, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 27.4Ma - 23.9Ma 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_00000390	27.4	24.2				216264	Picacho, Picacho District, Chocolate Mts, Imperial Co., California, USA	Shafiqullah et al. (1980)	AGSD12_201
Giersdorf_00000391	26.9	23.9				216264	Picacho, Picacho District, Chocolate Mts, Imperial Co., California, 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_00000390	27.4	24.2				216264	Picacho, Picacho District, Chocolate Mts, Imperial Co., California, USA	Shafiqullah et al. (1980)	AGSD12_201
Giersdorf_00000391	26.9	23.9				216264	Picacho, Picacho District, Chocolate Mts, Imperial Co., California, USA	Shafiqullah et al. (1980)	AGSD12_201
NAVDAT-15997	24.1	22.9				77039	Gulch Placer Mine (California Picacho; Picacho Basin Placers), Picacho, Picacho District, Chocolate Mts, Imperial Co., California, USA	NAVDAT	NAVDAT
NAVDAT-15999	24.1	22.9				77039	Gulch Placer Mine (California Picacho; Picacho Basin Placers), Picacho, Picacho District, Chocolate Mts, Imperial Co., California, USA	NAVDAT	NAVDAT