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 Quartz at Chicheng Co., Zhangjiakou, Hebei, China

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 187.7Ma - 175.7Ma 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
Kristen002424	187.7	187.1			Au	156640	Huangtuliang Au Deposit, Zhenningpu, Chicheng Co., Zhangjiakou, Hebei, China	Bao et al. (2014)	OGR61_107
Kristen002419	179.5	175.7	Quartz		Au	144523	Hougou Mine, Xiaozhangjiakou Gold Field, Chicheng Co., Zhangjiakou, Hebei, China	Bao et al. (2014)	OGR61_107

Direct 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
Kristen002419	179.5	175.7	Quartz		Au	144523	Hougou Mine, Xiaozhangjiakou Gold Field, Chicheng Co., Zhangjiakou, Hebei, China	Bao et al. (2014)	OGR61_107

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
Kristen002420	177.9	167.9			Au	144523	Hougou Mine, Xiaozhangjiakou Gold Field, Chicheng Co., Zhangjiakou, Hebei, China	Bao et al. (2014)	OGR61_107
Kristen002421	288.5	287.7			Au	144523	Hougou Mine, Xiaozhangjiakou Gold Field, Chicheng Co., Zhangjiakou, Hebei, China	Bao et al. (2014)	OGR61_107
Kristen002422	188	187.2			Au	144523	Hougou Mine, Xiaozhangjiakou Gold Field, Chicheng Co., Zhangjiakou, Hebei, China	Bao et al. (2014)	OGR61_107
Kristen002423	203.6	201.6			Au	144523	Hougou Mine, Xiaozhangjiakou Gold Field, Chicheng Co., Zhangjiakou, Hebei, China	Bao et al. (2014)	OGR61_107
Kristen002424	187.7	187.1			Au	156640	Huangtuliang Au Deposit, Zhenningpu, Chicheng Co., Zhangjiakou, Hebei, China	Bao et al. (2014)	OGR61_107