Ages for Zircon at Madison Co., Virginia, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 585Ma - 393Ma 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
  USGS-Rb-Sr-05911	585	555				104245	Madison Quarry, Madison Co., Virginia, USA	USGS-Rb-Sr	USGS-Rb-Sr
  USGS-Rb-Sr-05912	585	555				104245	Madison Quarry, Madison Co., Virginia, USA	USGS-Rb-Sr	USGS-Rb-Sr
  USGS-Rb-Sr-05943	547	393				104253	Stoney Man Mine, Northern Section-Blue Ridge Province, Madison Co., Virginia, USA	USGS-Rb-Sr	USGS-Rb-Sr
  USGS-Rb-Sr-05944	545	437				104253	Stoney Man Mine, Northern Section-Blue Ridge Province, Madison Co., Virginia, USA	USGS-Rb-Sr	USGS-Rb-Sr
  USGS-Rb-Sr-05949	547	393				104244	Hawksbill Mountain Mine, Madison Co., Virginia, USA	USGS-Rb-Sr	USGS-Rb-Sr
  USGS-Rb-Sr-05950	545	437				104244	Hawksbill Mountain Mine, Madison Co., Virginia, USA	USGS-Rb-Sr	USGS-Rb-Sr