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 Quartz at I X L Lode, Custer District, Custer Co., South Dakota, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 1715Ma - 274Ma 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-01881_206_238	767	767	Zircon			121292	I X L Lode, Custer District, Custer Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01881_207_206	1685	1685	Zircon			121292	I X L Lode, Custer District, Custer Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01881_207_235	1046	1046	Zircon			121292	I X L Lode, Custer District, Custer Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01882_206_238	274	274	Zircon			121292	I X L Lode, Custer District, Custer Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01882_207_206	1537	1537	Zircon			121292	I X L Lode, Custer District, Custer Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01882_207_235	459	459	Zircon			121292	I X L Lode, Custer District, Custer Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01883_206_238	1709	1709				121292	I X L Lode, Custer District, Custer Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01883_207_206	1715	1715				121292	I X L Lode, Custer District, Custer Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01883_207_235	1712	1712				121292	I X L Lode, Custer District, Custer Co., South Dakota, USA	USGS-U-Th-Pb	USGS-U-Th-Pb

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
Be-00023	1702	1702		Ehrleite, Fransoletite, Greifensteinite, Pahasapaite, Parafransoletite, Roscherite, Tiptopite	Be	4122	Tip Top Mine (Tip Top Pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA	Dahl and Foland (2008)	AM93_1215
Be-00046	1702	1702		Faheyite	Be	45259	Roosevelt Group (Rough Rider), Custer, Custer District, Custer Co., South Dakota, USA	Dahl and Foland (2008)	AM93_1215