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 Franklinite at Arusha Region, Tanzania

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 0.6Ma - 0.4Ma 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_0000425	0.6	0.4				208416	Kerimasi Volcano, Arusha Region, Tanzania	Ernst and Bell (2010)	MP98_55

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_0000425	0.6	0.4				208416	Kerimasi Volcano, Arusha Region, Tanzania	Ernst and Bell (2010)	MP98_55
Jen_0000428	2.15	2.03				283002	Arusha, Arusha Region, Tanzania	Ernst and Bell (2010)	MP98_55
Jen_0000430	2.2	2.1				283002	Arusha, Arusha Region, Tanzania	Ernst and Bell (2010)	MP98_55
Jen_0000432	3.38	3.26				240642	Sadiman Volcano, Arusha Region, Tanzania	Ernst and Bell (2010)	MP98_55
Jen_0000433	4.9	4.1				240642	Sadiman Volcano, Arusha Region, Tanzania	Ernst and Bell (2010)	MP98_55
Jen_0000559	0	0				14962	Mt Oldoinyo Lengai (Ol Doinyo Lengai), Arusha Region, Tanzania	Woolley and Kjarsgaard (2008)	GSCOF5796
Jen_0000576	3.91	3.91				240642	Sadiman Volcano, Arusha Region, Tanzania	Woolley and Kjarsgaard (2008)	GSCOF5796
Jen_0000577	3.38	3.26				240642	Sadiman Volcano, Arusha Region, Tanzania	Woolley and Kjarsgaard (2008)	GSCOF5796
Jen_0000578	4.9	4.1				240642	Sadiman Volcano, Arusha Region, Tanzania	Woolley and Kjarsgaard (2008)	GSCOF5796
Jen_0001538	610.6	609.4	Zircon			211915	Ruby Occurrence, Muriatata Hills, Longido, Arusha Region, Tanzania	Giuliani et al. (2007)	GOGD37_23
Michelle_0058	0.005	0.002				14962	Mt Oldoinyo Lengai (Ol Doinyo Lengai), Arusha Region, Tanzania	Hay (1989)	JVGR37_77
Michelle_0066	0.015	0				14962	Mt Oldoinyo Lengai (Ol Doinyo Lengai), Arusha Region, Tanzania	Hay (1989)	JVGR37_77