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 Sphalerite at Robinson Mine (Robinson No. 2), Kokomo-Tenmile Area, Summit Co., Colorado, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 66Ma - 2.6Ma at this locality

Locality age (remote)

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
sedznpb-00495	66	2.6				50133	Kokomo-Tenmile Area, Summit Co., Colorado, USA	Singer et al. (2009)	USGSOFR2009-1252