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Tatahouine meteorite, Tataouine (Foum Tatahouine), Tataouine Governorate, Tunisiai
Regional Level Types
Tatahouine meteoriteMeteorite Fall Location
Tataouine (Foum Tatahouine)- not defined -
Tataouine GovernorateGovernorate
TunisiaCountry

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Latitude & Longitude (WGS84): 32° 57' North , 10° 25' East
Latitude & Longitude (decimal): 32.95000,10.41667
GeoHash:G#: sjz7mn35t
Locality type:Meteorite Fall Location
Meteorite Class:Diogenite meteorite
Meteoritical Society Class:Diogenite
Metbull:View entry in Meteoritical Bulletin Database
Köppen climate type:BWh : Hot deserts climate
Nearest Settlements:
PlacePopulationDistance
Tataouine62,577 (2018)4.0km
Beni Kheddache3,588 (2018)39.3km
Medenine61,705 (2018)45.8km


Achondrite Diogenite
Fell June 27, 1931. Total mass 12 kg.

A large number of very small fragments fell over a radius of 500 m. Most Diogenites and all 11 Diogenite falls are pyroxenites compositionally dominated by orthopyroxene (~90 vol%), usually accompanied by plus minor amounts of various silicates and opaques. Unlike most other diogenites, however, Tatahouine's dominant pyroxene is composed mostly of numerous large single, usually seemingly unfragmented crystals of orthopyroxene. Closer inspection reveals, however, that many crystals have been partially deformed by shock and then subsequently reequilibrated and annealed. The Tatathouine's mineral assemblage is composed of very ancient material (~4.5 billion years). However, a moderately 'young' ~4.4 billion years Rb-Sr age suggests that the formation epoch itself was accompanied by almost simultaneous intense shock event(s) which would have interrupted any well defined simple formational epoch.

Tatahouine has also attracted some attention due to the detection of calcite and carbonate weathering products in samples recovered six decades after the fall. Some of the minerals may be biogenic. All this suggests that a 'well preserved' meteorite in a hot, dry dessert is not as impervious to alteration as first impressions might suggest.

Regions containing this locality

African PlateTectonic Plate
Sahara Desert, North AfricaDesert

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


6 valid minerals.

Meteorite/Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Iron1.AE.05Fe
var: Kamacite1.AE.05(Fe,Ni)
Group 2 - Sulphides and Sulfosalts
Pentlandite2.BB.15(FexNiy)Σ9S8
Troilite2.CC.10FeS
Group 4 - Oxides and Hydroxides
Chromite4.BB.05Fe2+Cr3+2O4
Cristobalite4.DA.15SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Unclassified Minerals, Rocks, etc.
'Hypersthene'-(Mg,Fe)SiO3
'Orthopyroxene Subgroup'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Iron
var: Kamacite
1.1.11.1(Fe,Ni)
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 9:8
Pentlandite2.7.1.1(FexNiy)Σ9S8
AmXp, with m:p = 1:1
Troilite2.8.9.1FeS
Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Cristobalite75.1.1.1SiO2
Unclassified Minerals, Mixtures, etc.
'Hypersthene'-(Mg,Fe)SiO3
Iron-Fe
'Orthopyroxene Subgroup'-

List of minerals for each chemical element

CCarbon
C CalciteCaCO3
OOxygen
O CristobaliteSiO2
O ChromiteFe2+Cr23+O4
O Hypersthene(Mg,Fe)SiO3
O CalciteCaCO3
MgMagnesium
Mg Hypersthene(Mg,Fe)SiO3
SiSilicon
Si CristobaliteSiO2
Si Hypersthene(Mg,Fe)SiO3
SSulfur
S TroiliteFeS
S Pentlandite(FexNiy)Σ9S8
CaCalcium
Ca CalciteCaCO3
CrChromium
Cr ChromiteFe2+Cr23+O4
FeIron
Fe ChromiteFe2+Cr23+O4
Fe Hypersthene(Mg,Fe)SiO3
Fe TroiliteFeS
Fe IronFe
Fe Iron (var: Kamacite)(Fe,Ni)
Fe Pentlandite(FexNiy)Σ9S8
NiNickel
Ni Iron (var: Kamacite)(Fe,Ni)
Ni Pentlandite(FexNiy)Σ9S8

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Late Cretaceous
66 - 100.5 Ma



ID: 3191808
Mesozoic sedimentary rocks

Age: Late Cretaceous (66 - 100.5 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Jurassic - Triassic
145 - 251.902 Ma



ID: 3307602

Age: Mesozoic (145 - 251.902 Ma)

Lithology: Sedimentary

Reference: Thiéblemont, D. (ed.). New edition of the 1:10,000,000 geological map of Africa. CGMW-BRGM. [190]

Late Jurassic
145 - 163.5 Ma



ID: 3136217
Late Jurassic undifferentiated

Age: Jurassic (145 - 163.5 Ma)

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Mason, B. (1963). The Hypersthene achondrites. American Museum Novitates, #2155, 13 pages.
Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.
Nord, G. L., Jr. & Hewins, R. H. (1983) Thermal and Mechanical History of Tatahouine Diogenite: Meteoritics 18 (4): 364-365. (Dec 1983)
Gooley, R. & Moore, C. B. ( 1976) Native metal in diogenite meteorites: American Mineralogist 61 (5/6, Part I): 373-378. (May-June 1976)
Takahashi, K. & Masudat, A. (1990) Young ages of two diogenites and their genetic implications:Nature 343 (6258): 540-542. (Feb 1990)
Barrat, J. A. et al. (1999) Science 280 (5362):412-414. (4/17/1998)
Barrat, J. A., Gillet, Ph., Lesourd, M., Blichert-Toft, J. & Poupeau, G. R. (1999) The Tatahouine diogenite: Mineralogical and chemical effects of sixty-three years of terrestrial residence. Meteoritics & Planetary Science 34(1): 91-97. (Jan 1999)

External Links

http://www.lpi.usra.edu/meteor/metbull.php = Meteoritical Bulletin Database


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