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 Nontronite at Redstone, Conway, Carroll Co., New Hampshire, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 195.99Ma - 69.9Ma at this locality

Locality age

Excel ID	Max Age (Ma)	Min Age (Ma)	Dated Mineral	Dated Locality ID	Dated Locality	Ref	Ref ID
USGS-Rb-Sr-00200	195.99	175.99		205884	Redstone, Conway, Carroll Co., New Hampshire, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-00201	188.14	170.14		205884	Redstone, Conway, Carroll Co., New Hampshire, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-01135	175.41	157.41		205884	Redstone, Conway, Carroll Co., New Hampshire, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-02173	175.67	157.67		205884	Redstone, Conway, Carroll Co., New Hampshire, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-U-Th-Pb-00041_206_238	194.6	176.6	Zircon	205884	Redstone, Conway, Carroll Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00041_207_206	189.9	69.9	Zircon	205884	Redstone, Conway, Carroll Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00041_207_235	190.6	172.6	Zircon	205884	Redstone, Conway, Carroll Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00345_206_238	190.6	180.6	Zircon	205884	Redstone, Conway, Carroll Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00345_207_206	189.9	69.9	Zircon	205884	Redstone, Conway, Carroll Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00345_207_235	186.6	176.6	Zircon	205884	Redstone, Conway, Carroll Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb