Ages for Sphalerite at East Ridge, Butte Mining District (Summit Valley Mining District), Silver Bow Co., Montana, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 64Ma - 57Ma 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-00137	64	57		Alunite, Bornite, Cerussite, Chalcopyrite, Copper, Covellite, Enargite, Fluorite, Galena, Jarosite, Kaolinite, Magnetite, Molybdenite, Powellite, Pyrite, Pyrophyllite, Rhodochrosite, Siderite, Sphalerite	Cu	107252	Continental Pit (Continental East Pit; East Berkeley Pit), Silver Bow Park, East Ridge, Butte Mining District (Summit Valley Mining District), Silver Bow Co., Montana, 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-00137	64	57		Alunite, Bornite, Cerussite, Chalcopyrite, Copper, Covellite, Enargite, Fluorite, Galena, Jarosite, Kaolinite, Magnetite, Molybdenite, Powellite, Pyrite, Pyrophyllite, Rhodochrosite, Siderite, Sphalerite	Cu	107252	Continental Pit (Continental East Pit; East Berkeley Pit), Silver Bow Park, East Ridge, Butte Mining District (Summit Valley Mining District), Silver Bow Co., Montana, USA	Singer et al. (2008)	USGSOFR2008_1155