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 Beaverton Cu Deposit, Alahambra Mining District (Golconda Mining District), Jefferson Co., Montana, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 38.93Ma - 34.55Ma at this locality

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-00680	38.93	34.55		Chalcopyrite, Molybdenite, Pyrite	Cu	208399	Beaverton Cu Deposit, Alahambra Mining District (Golconda Mining District), Jefferson Co., Montana, USA	Singer et al. (2008)	USGSOFR2008_1155