Ages for Marcasite at Elk Mountain District, Gunnison Co., Colorado, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 29Ma - 7.5Ma 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-19705	29	19				114074	Silver Spruce Mine, Elk Mountain District, Gunnison Co., Colorado, USA	NAVDAT	NAVDAT
  NAVDAT-31452	10	7.5				113785	Brush Creek Group, Elk Mountain District, Gunnison Co., Colorado, USA	NAVDAT	NAVDAT
  NAVDAT-31453	10	7.5				113785	Brush Creek Group, Elk Mountain District, Gunnison Co., Colorado, USA	NAVDAT	NAVDAT
  NAVDAT-31454	10	7.5				113785	Brush Creek Group, Elk Mountain District, Gunnison Co., Colorado, USA	NAVDAT	NAVDAT