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 Muscovite at Hillsborough Co., New Hampshire, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 1261Ma - 173Ma at this locality

Age range from children

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-00419_207_206	1261	1213	Zircon			9120	Bedford, Hillsborough Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00415_206_238	177	173				22967	Route 101/101A Road Cuts, Amherst, Hillsborough Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb

Locality age

Excel ID	Max Age (Ma)	Min Age (Ma)	Dated Mineral	Dated Locality ID	Dated Locality	Ref	Ref ID
USGS-U-Th-Pb-00410_206_238	406	398	Zircon	22967	Route 101/101A Road Cuts, Amherst, Hillsborough Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00410_207_206	649	625	Zircon	22967	Route 101/101A Road Cuts, Amherst, Hillsborough Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00410_207_235	443	435	Zircon	22967	Route 101/101A Road Cuts, Amherst, Hillsborough Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00411_206_238	409	401	Zircon	22967	Route 101/101A Road Cuts, Amherst, Hillsborough Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00411_207_206	594	574	Zircon	22967	Route 101/101A Road Cuts, Amherst, Hillsborough Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00411_207_235	436	428	Zircon	22967	Route 101/101A Road Cuts, Amherst, Hillsborough Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00412_206_238	386	378	Zircon	22967	Route 101/101A Road Cuts, Amherst, Hillsborough Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00412_207_206	595	575	Zircon	22967	Route 101/101A Road Cuts, Amherst, Hillsborough Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00412_207_235	415	407	Zircon	22967	Route 101/101A Road Cuts, Amherst, Hillsborough Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00413_206_238	404	396	Zircon	22967	Route 101/101A Road Cuts, Amherst, Hillsborough Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00413_207_206	536	516	Zircon	22967	Route 101/101A Road Cuts, Amherst, Hillsborough Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00413_207_235	423	415	Zircon	22967	Route 101/101A Road Cuts, Amherst, Hillsborough Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00414_206_238	391	383	Zircon	22967	Route 101/101A Road Cuts, Amherst, Hillsborough Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00414_207_206	542	522	Zircon	22967	Route 101/101A Road Cuts, Amherst, Hillsborough Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00414_207_235	412	404	Zircon	22967	Route 101/101A Road Cuts, Amherst, Hillsborough Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00415_206_238	177	173		22967	Route 101/101A Road Cuts, Amherst, Hillsborough Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00415_207_206	293	285		22967	Route 101/101A Road Cuts, Amherst, Hillsborough Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00415_207_235	184	180		22967	Route 101/101A Road Cuts, Amherst, Hillsborough Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00419_206_238	770	754	Zircon	9120	Bedford, Hillsborough Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00419_207_206	1261	1213	Zircon	9120	Bedford, Hillsborough Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00419_207_235	903	885	Zircon	9120	Bedford, Hillsborough Co., New Hampshire, USA	USGS-U-Th-Pb	USGS-U-Th-Pb