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 Grant Co., Oregon, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 54.8Ma - 33.7Ma 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
NAVDAT-10715	54.8	33.7				149165	Gold Prospect (MRDS - 10036650), Quartzburg District (Comer District), Grant Co., Oregon, USA	NAVDAT	NAVDAT

Locality age

Excel ID	Max Age (Ma)	Min Age (Ma)	Age applies to these Elements	Dated Locality ID	Dated Locality	Ref	Ref ID
NAVDAT-10317	23.8	5.3		150541	Myrtle Mine, Susanville District (Comer District), Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-10321	54.8	23.8		150037	Long Walk Prospect, Susanville District (Comer District), Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-10325	54.8	23.8		151765	Stithum Mine, Quartzburg District (Comer District), Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-10713	144	65		148970	Gladys Occurrence (Kayuse), Quartzburg District (Comer District), Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-10715	54.8	33.7		149165	Gold Prospect (MRDS - 10036650), Quartzburg District (Comer District), Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-10721	206	65		147992	Charlie Q. Occurrence (Leslie Ray; Ran 1; Sadie Bell 1-2; Ruth Tee Ann; Sharyl Ann; Mary Lou; Short Rock; Tory D.; Dana Lou; Wilma L.), Quartzburg District (Comer District), Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-10725	206	65		147729	Boulder Group (Boulder Ridge Mining Company; Cobalt Gold Mines Inc.), Quartzburg District (Comer District), Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-18956	16	15		147545	Big Chief Claim, South Fork Area, Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-18957	16	15		147545	Big Chief Claim, South Fork Area, Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-18958	16	15		147545	Big Chief Claim, South Fork Area, Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-18959	16	15		147545	Big Chief Claim, South Fork Area, Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-18960	16	15		147545	Big Chief Claim, South Fork Area, Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-18961	16	15		147545	Big Chief Claim, South Fork Area, Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-18962	16	15		147545	Big Chief Claim, South Fork Area, Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-18963	16	15		147545	Big Chief Claim, South Fork Area, Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-18964	16	15		147545	Big Chief Claim, South Fork Area, Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-18965	16	15		147545	Big Chief Claim, South Fork Area, Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-18966	16	15		147545	Big Chief Claim, South Fork Area, Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-18967	16	15		147545	Big Chief Claim, South Fork Area, Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-18968	16	15		147545	Big Chief Claim, South Fork Area, Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-18969	16	15		147545	Big Chief Claim, South Fork Area, Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-18970	16	15		147545	Big Chief Claim, South Fork Area, Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-18971	16	15		147545	Big Chief Claim, South Fork Area, Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-18972	16	15		147545	Big Chief Claim, South Fork Area, Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-18973	16	15		147545	Big Chief Claim, South Fork Area, Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-18974	16	15		147545	Big Chief Claim, South Fork Area, Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-9182	290	206		149986	Little Giant, Greenhorn District, Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-9190	290	206		150743	Oregon Monarch Occurrence, Red Boy District / Granite Area, Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-9191	290	206		150743	Oregon Monarch Occurrence, Red Boy District / Granite Area, Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-9192	290	206		150743	Oregon Monarch Occurrence, Red Boy District / Granite Area, Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-9197	54.8	23.8		151140	R Dee & R Dee Too, Granite District, Grant Co., Oregon, USA	NAVDAT	NAVDAT
NAVDAT-9198	54.8	23.8		149277	Granite Placers (Porter And Company; Hudson Dredge & Company; Bull Run Mining Company; Oro Plata; Western Gold Corp.), Granite District, Grant Co., Oregon, USA	NAVDAT	NAVDAT
podchrome-00452	280	280	Cr	147981	Chambers Mine (George Len), Canyon City District, Grant Co., Oregon, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00453	280	280	Cr	149625	Iron King Mine (Billie Girl), Canyon Creek District, Grant Co., Oregon, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00454	280	280	Cr	148625	Dry Camp, Canyon Creek District, Grant Co., Oregon, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00455	280	280	Cr	150229	Marks & Thompson Mine (Hanenkrats; Marks-Thompson; Big Jim), Canyon City District, Grant Co., Oregon, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00456	280	280	Cr	147262	Ajax Mine, Canyon City District, Grant Co., Oregon, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00457	280	280	Cr	147971	Celebration Mine, Canyon Creek District, Grant Co., Oregon, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00459	280	280	Cr	153298	Ward Mine (B & J; Olson), Canyon Creek District, Grant Co., Oregon, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00460	280	280	Cr	149822	Kingsley Mine (Wm.W. Gardner Claim), Canyon Creek District, Grant Co., Oregon, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00461	280	280	Cr	149357	Haggard And New Mines, Canyon Creek District, Grant Co., Oregon, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00462	280	280	Cr	150977	Powers Mine, Canyon Creek District, Grant Co., Oregon, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00463	280	280	Cr	151569	Silver's Mine (Silver Lease), Mount Vernon, Grant Co., Oregon, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00464	280	280	Cr	150640	Norway Mine (Potato Patch Mine; Smith Mine; Geitsfield Mine), Canyon Creek District, Grant Co., Oregon, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00465	280	280	Cr	150640	Norway Mine (Potato Patch Mine; Smith Mine; Geitsfield Mine), Canyon Creek District, Grant Co., Oregon, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00466	280	280	Cr	148973	Glasscock Claims (Another Chance; Queen Of The May; Stone & Hankins; Uncle Sam; Eddy Group), South Fork Area, Grant Co., Oregon, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00467	280	280	Cr	148973	Glasscock Claims (Another Chance; Queen Of The May; Stone & Hankins; Uncle Sam; Eddy Group), South Fork Area, Grant Co., Oregon, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00468	280	280	Cr	148973	Glasscock Claims (Another Chance; Queen Of The May; Stone & Hankins; Uncle Sam; Eddy Group), South Fork Area, Grant Co., Oregon, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00469	280	280	Cr	149378	Hankins (Oregon Mine; Hankins; Spring And Chrome Ridge), Murderers Creek, Grant Co., Oregon, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00470	280	280	Cr	148514	Delore Prospects, Murderers Creek, Grant Co., Oregon, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00471	280	280	Cr	148940	Gardner Ranch Prospect (Zero; Carlsen; Al Dunn), Canyon Creek District, Grant Co., Oregon, USA	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00472	280	280	Cr	151177	Ray Mine (Tip Top Mine; Ray Springs Mine), Canyon City District, Grant Co., Oregon, USA	Moiser et al. (2012)	USGSSIR2012_5157
USGS-Rb-Sr-03602	164	130		54409	Monumental Mine (Kissell), Granite District, Grant Co., Oregon, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-03603	166	150		54409	Monumental Mine (Kissell), Granite District, Grant Co., Oregon, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-03604	151.93	137.93		54409	Monumental Mine (Kissell), Granite District, Grant Co., Oregon, USA	USGS-Rb-Sr	USGS-Rb-Sr