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 Microcline at White Earth District (Powderhorn District), Gunnison Co., Colorado, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 589Ma - 510Ma 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
Jen_0000931	589	569				3632	Iron Hill (Iron Hill Carbonatite Complex), White Earth District (Powderhorn District), Gunnison Co., Colorado, USA	Woolley and Kjarsgaard (2008)	GSCOF5796
Alexandra-0395	510	510				3632	Iron Hill (Iron Hill Carbonatite Complex), White Earth District (Powderhorn District), Gunnison Co., Colorado, USA	Van Gosen (2009)	USGSOFR2009_1005

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
Alexandra-0394	570	570		Diopside, Fluorapatite, Ilmenite, Magnetite, Phlogopite, Titanite		3632	Iron Hill (Iron Hill Carbonatite Complex), White Earth District (Powderhorn District), Gunnison Co., Colorado, USA	Van Gosen (2009)	USGSOFR2009_1005
Alexandra-0395	510	510				3632	Iron Hill (Iron Hill Carbonatite Complex), White Earth District (Powderhorn District), Gunnison Co., Colorado, USA	Van Gosen (2009)	USGSOFR2009_1005
Jen_0000931	589	569				3632	Iron Hill (Iron Hill Carbonatite Complex), White Earth District (Powderhorn District), Gunnison Co., Colorado, USA	Woolley and Kjarsgaard (2008)	GSCOF5796
Jen_0000932	570	570				3632	Iron Hill (Iron Hill Carbonatite Complex), White Earth District (Powderhorn District), Gunnison Co., Colorado, USA	Woolley and Kjarsgaard (2008)	GSCOF5796
Jen_0000933	550	550	Titanite			3632	Iron Hill (Iron Hill Carbonatite Complex), White Earth District (Powderhorn District), Gunnison Co., Colorado, USA	Woolley and Kjarsgaard (2008)	GSCOF5796
ree-00659	570	570				113911	Iron Hill Area (Big Iron Hill; Du Pont Adit), White Earth District (Powderhorn District), Gunnison Co., Colorado, USA	Orris and Grauch (2002)	USGSOFR02_189