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 Chalcocite at Fortymile District, Southeast Fairbanks Census Area, Alaska, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 69Ma - 68Ma 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
PorphCu-00243	69	68		Chalcocite, Chalcopyrite, Covellite, Goethite, Jarosite, Molybdenite, Pyrite	Cu	200298	Taurus Prospect (incl. East Taurus Prospect; West Taurus Prospect), Fortymile District, Southeast Fairbanks Census Area, Alaska, USA	Singer et al. (2008)	USGSOFR2008_1155

Specified 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
PorphCu-00243	69	68		Chalcocite, Chalcopyrite, Covellite, Goethite, Jarosite, Molybdenite, Pyrite	Cu	200298	Taurus Prospect (incl. East Taurus Prospect; West Taurus Prospect), Fortymile District, Southeast Fairbanks Census Area, Alaska, USA	Singer et al. (2008)	USGSOFR2008_1155