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 Gudmundite at Tanzania

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 2680Ma - 2680Ma 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
Emily000541	2680	2680			Au	195212	Golden Pride Mine, Nzega District, Lake Victoria Goldfield, Tabora Region, Tanzania	Vos et al. (2009)	MD44_81

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-0229	939.5	934.7			Ta,Nb	262106	Wigu Hill REE Deposit, Morogoro Region, Tanzania	Melcher et al. (2015)	OGR64_667
EG102_147-001-001	1182	1166	Zircon			219739	Kabanga Deposit, Ngara District, Kagera Region, Tanzania	Maier et al. (2007)	EG102_147
EG102_147-002-001	1270.3	1264.5	Zircon			219739	Kabanga Deposit, Ngara District, Kagera Region, Tanzania	Maier et al. (2007)	EG102_147
EG102_147-003-001	1282	1254	Zircon			219739	Kabanga Deposit, Ngara District, Kagera Region, Tanzania	Maier et al. (2007)	EG102_147
EG102_147-004-001	1306.8	1298.2	Zircon			219739	Kabanga Deposit, Ngara District, Kagera Region, Tanzania	Maier et al. (2007)	EG102_147
EG102_147-005-001	1322.7	1314.5	Zircon			219739	Kabanga Deposit, Ngara District, Kagera Region, Tanzania	Maier et al. (2007)	EG102_147
EG102_147-006-001	1329.1	1323.9	Zircon			219739	Kabanga Deposit, Ngara District, Kagera Region, Tanzania	Maier et al. (2007)	EG102_147
EG102_147-007-001	1331.1	1324.7	Zircon			219739	Kabanga Deposit, Ngara District, Kagera Region, Tanzania	Maier et al. (2007)	EG102_147
EG102_147-008-001	1337.9	1331.7	Zircon			219739	Kabanga Deposit, Ngara District, Kagera Region, Tanzania	Maier et al. (2007)	EG102_147
EG102_147-009-001	1343.6	1337	Zircon			219739	Kabanga Deposit, Ngara District, Kagera Region, Tanzania	Maier et al. (2007)	EG102_147
EG102_147-010-001	1345.5	1339.9	Zircon			219739	Kabanga Deposit, Ngara District, Kagera Region, Tanzania	Maier et al. (2007)	EG102_147
EG102_147-011-001	1361.1	1355.3	Zircon			219739	Kabanga Deposit, Ngara District, Kagera Region, Tanzania	Maier et al. (2007)	EG102_147
EG102_147-012-001	1370.3	1364.3	Zircon			219739	Kabanga Deposit, Ngara District, Kagera Region, Tanzania	Maier et al. (2007)	EG102_147
EG102_147-013	1417	1389	Zircon			219739	Kabanga Deposit, Ngara District, Kagera Region, Tanzania	Maier et al. (2007)	EG102_147
EG105_1057_014	1400	1400			Ni,Cu,Pt,Pd,Rh,Ir,Os,Ru	219739	Kabanga Deposit, Ngara District, Kagera Region, Tanzania	Begg et al. (2010)	EG105_1057
Emily000541	2680	2680			Au	195212	Golden Pride Mine, Nzega District, Lake Victoria Goldfield, Tabora Region, Tanzania	Vos et al. (2009)	MD44_81
Giersdorf_00000289	600	600		Grossular, Zoisite		5699	Merelani Hills (Mererani), Lelatema Mts, Simanjiro District, Manyara Region, Tanzania	Feneyrol et al. (2017)	TCM55_763
Jen_0000425	0.6	0.4				208416	Kerimasi Volcano, Arusha Region, Tanzania	Ernst and Bell (2010)	MP98_55
Jen_0000427	2.15	2.03				69264	Monduli Volcano, Kilimanjaro 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_0000429	2.2	2.1				69264	Monduli Volcano, Kilimanjaro 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_0001131	110	90				301552	Songwe Region, Tanzania	Woolley and Kjarsgaard (2008)	GSCOF5796
Jen_0001132	119	107				3245	Panda Hill, Mbeya, Mbeya 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
Michelle_700	1286	1264			Ni,Cu	219739	Kabanga Deposit, Ngara District, Kagera Region, Tanzania	Hoatson et al. (2006)	OGR29_177