Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.

Locality Name:
Kilimanjaro Region, Tanzania

Oldest recorded age at locality: 2.2
Youngest recorded age at locality: 2.03

mindat Locality ID: 34964
mindat URL: http://www.mindat.org/loc-34964.html

Tectonic Settings:

Total number of sublocalities beneath "Kilimanjaro Region, Tanzania": 15
Total number of bottom-level sublocalities: 11

Number of Child Localities: 11
Child Localities:
Eledoi Hill
Labait Volcano
Lashaine Volcano
Monduli Volcano
Moshi
Mt Kilimanjaro
Munoanama
Olmani Cinder Cone (Olmani Hill)
Pello Hill
Same
Sinya Mine

Latitude: 3°34'1"S
Longitude: 37°33'22"E
Decimal Degree (lat, lon): -3.5669444444444,37.556111111111

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
	This mineral's age has not yet been recorded.

Amorphous	Analcime	Apatite	Calcite	Clay	Corundum	Mica	Monazite	None	Olivine
Perovskite	Pyroxene	Rutile	Sepiolite	Spinel	Tridymite	Zircon

Augite ()*	Calcite ()*	Chromite ()*	Diopside ()*	Dolomite ()*
Enstatite ()*	Fluorapatite ()*	Forsterite ()*	Graphite ()*	Hercynite ()*
Ice ()*	Ilmenite ()*	Leucite ()*	Magnesite ()*	Magnetite ()*
Monazite-(La) ()*	Nepheline ()*	Perovskite ()*	Phlogopite ()*	Rutile ()*
Sepiolite ()*	Spinel ()*	Trona ()*	Zircon ()*

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al C Ca Cr F Fe H K La Mg Na O P Si Ti Zr

Elements from minerals reported directly at this locality: C H Na O

Structural Groups for minerals in this locality:
Amorphous Analcime Apatite Calcite Clay Corundum Mica Monazite None Olivine
Perovskite Pyroxene Rutile Sepiolite Spinel Tridymite Zircon

24 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	2.2	2.03	3	115701,115704,115707	2060
Calcite ()*	Calcite	Ca(CO₃)	2.2	2.03	5	115700,115701,115703,115704,115711	27770
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	2.2	2.03	3	115701,115704,115710	3902
Diopside ()*	Pyroxene	CaMgSi₂O₆			4	115700,115703,115710,115711	4135
Dolomite ()*	None	CaMg(CO₃)₂			1	115705	9895
Enstatite ()*	Pyroxene	Mg₂Si₂O₆			2	115703,115710	944
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F			1	115710	2740
Forsterite ()*	Olivine	Mg₂(SiO₄)	2.2	2.03	5	115700,115701,115704,115710,115711	1188
Graphite ()*	None	C			1	115705	2812
Hercynite ()*	Spinel	Fe²⁺Al₂O₄	2.2	2.03	2	115703,115704	407
Ice ()*	Amorphous Tridymite	H₂O			1	115706	59
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃			4	115700,115703,115707,115711	5433
Leucite ()*	Analcime	K(AlSi₂O₆)			2	115706,115707	233
Magnesite ()*	Calcite	Mg(CO₃)			1	115713	1487
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	2.2	2.03	2	115701,115704	14899
Monazite-(La) ()*	Monazite	La(PO₄)			1	115710	38
Nepheline ()*	Tridymite	Na₃K(Al₄Si₄O₁₆)			4	115700,115701,115707,115711	884
Perovskite ()*	Perovskite	CaTiO₃			1	115701	495
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂			4	115700,115701,115703,115711	2273
Rutile ()*	Rutile	TiO₂			4	115700,115701,115703,115711	5614
Sepiolite ()*	Sepiolite Clay	Mg₄Si₆O₁₅(OH)₂·6H₂O			1	115714	241
Spinel ()*	Spinel	MgAl₂O₄	2.2	2.03	3	115703,115704,115710	1934
Trona ()*	None	Na₃(HCO₃)(CO₃)·2H₂O	2.2	2.03	0		129
Zircon ()*	Zircon	Zr(SiO₄)			2	115701,115707	5251

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Jen_0000427	carbonatite complex
Jen_0000429	carbonatite complex

2 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	Jen_0000427	2.15	2.03	2.09±0.06	K-Ar										69264	Monduli Volcano, Kilimanjaro Region, Tanzania	Monduli Volcano	Ernst and Bell (2010)	10.1007/s00710-009-0074-1	MP98_55
	Jen_0000429	2.2	2.1	2.15±0.05	K-Ar										69264	Monduli Volcano, Kilimanjaro Region, Tanzania	Monduli Volcano	Ernst and Bell (2010)	10.1007/s00710-009-0074-1	MP98_55

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...