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 Chromite at West Belt, El Dorado Co., California, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 388Ma - 311Ma 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
podchrome-00119	388	388			Cr	77910	McCurdy Mine [2], Coloma, Coloma District, West Belt, El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00118	311	311			Cr	78403	Williamson Mine (Hector Williamson), Cold Springs, Shingle Springs District, West Belt, El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157

Mineralization 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
podchrome-00118	311	311			Cr	78403	Williamson Mine (Hector Williamson), Cold Springs, Shingle Springs District, West Belt, El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00119	388	388			Cr	77910	McCurdy Mine [2], Coloma, Coloma District, West Belt, El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00120	388	388			Cr	77999	O'Brien Mine (S-Bend Mine), Coloma, Coloma District, West Belt, El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00121	388	388			Cr	78196	Simon Mine, Coloma, Coloma District, West Belt, El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00122	388	388			Cr	78196	Simon Mine, Coloma, Coloma District, West Belt, El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00123	388	388			Cr	78187	Shelley Mine (Wolf Mine; Shelly Mine; Shelley Wolf Mine), Coloma, Coloma District, West Belt, El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00125	388	388			Cr	78190	Sheppard Mine, Coloma, Coloma District, West Belt, El Dorado Co., California, USA	Moiser et al. (2012)	USGSSIR2012_5157