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 Magnetite at Lake And Peninsula Borough, Alaska, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 89.5Ma - 3.6Ma 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-00240	89.5	86.5		Anhydrite, Bornite, Chalcopyrite, Covellite, Epidote, Galena, Gold, Magnetite, Molybdenite, Pyrite, Siderite, Sphalerite	Cu	199343	Pebble Copper Prospect, Bristol Bay District, Lake And Peninsula Borough, Alaska, USA	Singer et al. (2008)	USGSOFR2008_1155
PorphCu-00234	3.6	3.6		Actinolite, Chalcopyrite, Chrysocolla, Magnetite, Molybdenite, Pyrite, Rutile	Cu	196445	Bee Creek Prospect (Dry Creek Prospect), Alaska Peninsula District, Lake And Peninsula Borough, 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-00234	3.6	3.6		Actinolite, Chalcopyrite, Chrysocolla, Magnetite, Molybdenite, Pyrite, Rutile	Cu	196445	Bee Creek Prospect (Dry Creek Prospect), Alaska Peninsula District, Lake And Peninsula Borough, Alaska, USA	Singer et al. (2008)	USGSOFR2008_1155
PorphCu-00240	89.5	86.5		Anhydrite, Bornite, Chalcopyrite, Covellite, Epidote, Galena, Gold, Magnetite, Molybdenite, Pyrite, Siderite, Sphalerite	Cu	199343	Pebble Copper Prospect, Bristol Bay District, Lake And Peninsula Borough, Alaska, USA	Singer et al. (2008)	USGSOFR2008_1155

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
PorphCu-00236	63	56		Arsenopyrite, Chalcopyrite, Galena, Pyrite, Pyrrhotite	Cu	198360	Kijik River; Thompson Prospect, Bristol Bay District, Lake And Peninsula Borough, Alaska, USA	Singer et al. (2008)	USGSOFR2008_1155