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 Tsukiyoshi Uranium Ore Deposits, Mizunami City, Gifu, Japan

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 72Ma - 0.7Ma 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
Giersdorf_00001016	72	64				14761	Tono Mine (Tohno Mine), Tsukiyoshi Uranium Ore Deposits, Mizunami City, Gifu, Japan	Shikazono & Utada (1997)	MD32_596
Giersdorf_00001019	5	0.7				14761	Tono Mine (Tohno Mine), Tsukiyoshi Uranium Ore Deposits, Mizunami City, Gifu, Japan	Shikazono & Utada (1997)	MD32_596

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
Giersdorf_00001016	72	64				14761	Tono Mine (Tohno Mine), Tsukiyoshi Uranium Ore Deposits, Mizunami City, Gifu, Japan	Shikazono & Utada (1997)	MD32_596
Giersdorf_00001017	22	18		Coffinite, Uraninite		14761	Tono Mine (Tohno Mine), Tsukiyoshi Uranium Ore Deposits, Mizunami City, Gifu, Japan	Shikazono & Utada (1997)	MD32_596
Giersdorf_00001018	16	15				14761	Tono Mine (Tohno Mine), Tsukiyoshi Uranium Ore Deposits, Mizunami City, Gifu, Japan	Shikazono & Utada (1997)	MD32_596
Giersdorf_00001019	5	0.7				14761	Tono Mine (Tohno Mine), Tsukiyoshi Uranium Ore Deposits, Mizunami City, Gifu, Japan	Shikazono & Utada (1997)	MD32_596