Ages for Microcline at Hilton Quarry, Baltimore Co., Maryland, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 774.4Ma - 514.6Ma 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-U-Th-Pb-00759_206_238	585.8	555.8	Zircon			142896	Hilton Quarry, Baltimore Co., Maryland, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
  USGS-U-Th-Pb-00759_207_206	544.6	514.6	Zircon			142896	Hilton Quarry, Baltimore Co., Maryland, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
  USGS-U-Th-Pb-00759_207_235	577.6	547.6	Zircon			142896	Hilton Quarry, Baltimore Co., Maryland, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
  USGS-U-Th-Pb-00760_206_238	774.4	744.4	Zircon			142896	Hilton Quarry, Baltimore Co., Maryland, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
  USGS-U-Th-Pb-00760_207_206	636.7	606.7	Zircon			142896	Hilton Quarry, Baltimore Co., Maryland, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
  USGS-U-Th-Pb-00760_207_235	740.4	710.4	Zircon			142896	Hilton Quarry, Baltimore Co., Maryland, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
  USGS-U-Th-Pb-00761_206_238	749.6	719.6	Zircon			142896	Hilton Quarry, Baltimore Co., Maryland, USA	USGS-U-Th-Pb	USGS-U-Th-Pb