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 Orthoclase at Big Bend National Park, Brewster Co., Texas, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 38Ma - 26Ma 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
NAVDAT-33420	38	26				41951	Rattlesnake Mts, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT

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
NAVDAT-12696	38	26				41949	Chisos Mts, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-33420	38	26				41951	Rattlesnake Mts, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-33421	38	26				41951	Rattlesnake Mts, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-33422	38	26				41951	Rattlesnake Mts, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-33423	38	26				41951	Rattlesnake Mts, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-33424	38	26				41951	Rattlesnake Mts, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-33425	38	26				41951	Rattlesnake Mts, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-33426	38	26				41951	Rattlesnake Mts, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-33427	38	26				41951	Rattlesnake Mts, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-3633	38	26				41948	Bone Spring, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-3634	38	26				41948	Bone Spring, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-3635	38	26				41948	Bone Spring, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-3639	48	38				41948	Bone Spring, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT
NAVDAT-3641	38	26				41948	Bone Spring, Big Bend National Park, Brewster Co., Texas, USA	NAVDAT	NAVDAT