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 Arfvedsonite at Mountain Pass District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 1410Ma - 1396Ma 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
Michelle_0264_d	1410	1396	Arfvedsonite			11616	Mountain Pass Mine (Mountain Pass Deposit; Mountain Pass Mine And Mill; Bastnaesite Deposit; Bastnäsite Deposit; Mountain Pass Carbonatite), Mountain Pass, Mountain Pass District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USA	DeWitt et al. (1987)	APGSA19_642

Direct 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
Michelle_0264_d	1410	1396	Arfvedsonite			11616	Mountain Pass Mine (Mountain Pass Deposit; Mountain Pass Mine And Mill; Bastnaesite Deposit; Bastnäsite Deposit; Mountain Pass Carbonatite), Mountain Pass, Mountain Pass District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USA	DeWitt et al. (1987)	APGSA19_642

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
Jen_0000128	1436.071	1435.929				272976	Mountain Pass, Mountain Pass District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USA	Anderson (1983)	GSAM161_133
Jen_0001041	1415	1415				272976	Mountain Pass, Mountain Pass District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USA	Woolley and Kjarsgaard (2008)	GSCOF5796
Jen_0001042	1475	1405				272976	Mountain Pass, Mountain Pass District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USA	Woolley and Kjarsgaard (2008)	GSCOF5796
Jen_0001043	1420	1350				272976	Mountain Pass, Mountain Pass District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USA	Woolley and Kjarsgaard (2008)	GSCOF5796
Jen_0001044	1430	1330				272976	Mountain Pass, Mountain Pass District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USA	Woolley and Kjarsgaard (2008)	GSCOF5796
Jen_0001045	1530	1370				272976	Mountain Pass, Mountain Pass District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USA	Woolley and Kjarsgaard (2008)	GSCOF5796
Jen_0001046	1563	1483	Galena			272976	Mountain Pass, Mountain Pass District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USA	Woolley and Kjarsgaard (2008)	GSCOF5796
Michelle_0261_a	1339	1325				11616	Mountain Pass Mine (Mountain Pass Deposit; Mountain Pass Mine And Mill; Bastnaesite Deposit; Bastnäsite Deposit; Mountain Pass Carbonatite), Mountain Pass, Mountain Pass District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USA	DeWitt et al. (1987)	APGSA19_642
Michelle_0262_b	1412	1408				11616	Mountain Pass Mine (Mountain Pass Deposit; Mountain Pass Mine And Mill; Bastnaesite Deposit; Bastnäsite Deposit; Mountain Pass Carbonatite), Mountain Pass, Mountain Pass District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USA	DeWitt et al. (1987)	APGSA19_642
Michelle_0263_c	1408	1392	Phlogopite			11616	Mountain Pass Mine (Mountain Pass Deposit; Mountain Pass Mine And Mill; Bastnaesite Deposit; Bastnäsite Deposit; Mountain Pass Carbonatite), Mountain Pass, Mountain Pass District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USA	DeWitt et al. (1987)	APGSA19_642
Michelle_0265_e	1330	1330	Zircon			11616	Mountain Pass Mine (Mountain Pass Deposit; Mountain Pass Mine And Mill; Bastnaesite Deposit; Bastnäsite Deposit; Mountain Pass Carbonatite), Mountain Pass, Mountain Pass District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USA	DeWitt et al. (1987)	APGSA19_642
Michelle_0266_f	1382	1368				11616	Mountain Pass Mine (Mountain Pass Deposit; Mountain Pass Mine And Mill; Bastnaesite Deposit; Bastnäsite Deposit; Mountain Pass Carbonatite), Mountain Pass, Mountain Pass District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USA	DeWitt et al. (1987)	APGSA19_642