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 Montmorillonite at Washington Co., Utah, 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	Dated Locality ID	Dated Locality	Ref	Ref ID
Jen_0000055	1660	1660		180323	Beaver Dam Mountain, Tutsagubet District, Beaver Dam Mts, Washington Co., Utah, USA	Wasserburg and Lanphere (1965)	GSAB76_735
Jen_0000055a	1379	1379		180323	Beaver Dam Mountain, Tutsagubet District, Beaver Dam Mts, Washington Co., Utah, USA	Wasserburg and Lanphere (1965)	GSAB76_735
Jen_0000055b	1500	1500	Microcline	180323	Beaver Dam Mountain, Tutsagubet District, Beaver Dam Mts, Washington Co., Utah, USA	Wasserburg and Lanphere (1965)	GSAB76_735
NAVDAT-57996	0.398	0.067		180935	Cinder Pit (MRDS - 10097984), Washington Co., Utah, USA	NAVDAT	NAVDAT
NAVDAT-58026	0.398	0.308		185010	Volcano Mountain Occurrence, Washington Co., Utah, USA	NAVDAT	NAVDAT
NAVDAT-58027	0.398	0.308		185010	Volcano Mountain Occurrence, Washington Co., Utah, USA	NAVDAT	NAVDAT
NAVDAT-58028	0.398	0.308		185010	Volcano Mountain Occurrence, Washington Co., Utah, USA	NAVDAT	NAVDAT
NAVDAT-58029	0.398	0.308		185010	Volcano Mountain Occurrence, Washington Co., Utah, USA	NAVDAT	NAVDAT
NAVDAT-58034	0.282	0.234		185010	Volcano Mountain Occurrence, Washington Co., Utah, USA	NAVDAT	NAVDAT
NAVDAT-58035	0.191	0.067		185010	Volcano Mountain Occurrence, Washington Co., Utah, USA	NAVDAT	NAVDAT
NAVDAT-58036	0.398	0.067		185010	Volcano Mountain Occurrence, Washington Co., Utah, USA	NAVDAT	NAVDAT
NAVDAT-58040	0.398	0.067		180935	Cinder Pit (MRDS - 10097984), Washington Co., Utah, USA	NAVDAT	NAVDAT
NAVDAT-58044	0.398	0.067		180935	Cinder Pit (MRDS - 10097984), Washington Co., Utah, USA	NAVDAT	NAVDAT
NAVDAT-58045	0.398	0.067		180935	Cinder Pit (MRDS - 10097984), Washington Co., Utah, USA	NAVDAT	NAVDAT
sedznpb-00442	207	193		4193	Apex Mine (Dixie Mine; Utah-Eastern Mine; Dixie-Apex; Pen), Jarvis Peak, Tutsagubet District, Beaver Dam Mts, Washington Co., Utah, USA	Singer et al. (2009)	USGSOFR2009-1252