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 Bornite at Houghton Co., Michigan, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 1080Ma - 1014Ma at this locality

Locality age (remote)

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
Kristen002199	1080	1014				11425	Keweenaw Peninsula, Michigan, USA	Bornhorst et al. (1988)	EG83_619
Kristen002200	1080	1040				11425	Keweenaw Peninsula, Michigan, USA	Bornhorst et al. (1988)	EG83_619