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 Pyrolusite at West Belt, Mariposa Co., California, USA

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

Locality age

Excel ID	Max Age (Ma)	Min Age (Ma)	Dated Mineral	Age applies to these Elements	Dated Locality ID	Dated Locality	Ref	Ref ID
USGS-U-Th-Pb-02591_206_238	146	146	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02591_207_206	155	143	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02591_207_235	146	146	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02592_206_238	145	145	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02592_207_206	155	141	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02592_207_235	145	145	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02593_206_238	162	162	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02593_207_206	554	546	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02593_207_235	189	189	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02594_206_238	138	138	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02594_207_206	177	165	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02594_207_235	140	140	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02595_206_238	149	149	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02595_207_206	337	329	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02595_207_235	161	161	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02596_206_238	190	190	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02596_207_206	769	763	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02596_207_235	241	241	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02611_206_238	465	465	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02611_207_206	1409	1407	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02611_207_235	662	662	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
vms-01020	170	170		S	81928	Akoz Mine (Asposozien Mine; B.A.B. Mine; Radium Mine), Webb Station, West Belt, Mariposa Co., California, USA	Moiser et al. (2009)	USGSOFR2009_1034
vms-01024	170	170		S	81941	Blue Moon Mine (Porcupine Mine; Blue Cloud Mine; Red Cloud Mine; Percupine Mine; American Eagle Mine; Bullion Hill Mine), Quartzburg, Hornitos District, West Belt, Mariposa Co., California, USA	Moiser et al. (2009)	USGSOFR2009_1034