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 Calcite at Mammoth Mine (Quinn Creek Mine; Valentine Mine), Presidio 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

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-4700	38	26				42436	Mammoth Mine (Quinn Creek Mine; Valentine Mine), Presidio Co., Texas, USA	NAVDAT	NAVDAT