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Almahata Sitta meteorite, Nar an Nil, Sudan

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Latitude & Longitude (WGS84): 20° 43' 1'' North , 32° 30' 34'' East
Latitude & Longitude (decimal): 20.71722,32.50972
GeoHash:G#: sexjgg2ye
Locality type:Meteorite Fall Location
Meteorite Class:Anomalous ureilite meteorite
Meteoritical Society Class:Ureilite-an
Metbull:View entry in Meteoritical Bulletin Database
Age:~4630 to ~4600 Ma
Geologic Time:Titanomachean
Köppen climate type:BWh : Hot deserts climate


Classification: Ureilite - anomalous, polymict.

3.95 kg, hundreds of stones.

Almahatta Sitta — I. First recovered meteorite from a predicted asteroid-earth collision. II. Largest Ureilite fall, an enigmatic and uncommon meteorite type. III. A very unusual Ureilite

The Almahatta Sitta meteorite is the first instance of a meteorite recovery following the detection of a very small asteroid on a collision course with the earth. Approximately 20 hours after the discovery of asteroid 2008 TC3, the asteroid exploded 35-40 km above the Nubian desert — spraying hundreds of small fragments over a 28 x 5 kilometers. Several stones are over 200 g in mass, but most are quite small. The fragments are dark and usually roundish in shape. The meteorite belongs to the relatively rare class of asteroids called “Ureilites” (after the prototype Novo Urei, an 1886 fall). Almahatta Sitta is the most massive of the six witnessed Ureilite falls.

The Ureilites are composed primarily of olivine and pyroxene (pigeonite is particularly prominent). However, ureilites are best known for their diamonds — quite small, but seemingly indicating enormous pressures from shocks suffered in ancient impacts. The ureilites also usually contain a number of minor opaque minerals such as kamacite (meteoritic iron) and troilite (an iron sulfide). The ureilites are particularly intriguing because their microscopic textures may have been due to both vapor condensation and to shock impact. Both the relative importance and the timing of these nebular and collisional processes does not appear to be a settled matter at this time.

A 2018 study suggests that the relatively large size of the diamond crystals show this meteorite came from a parent body of between moon and mars size that was catastrophically disrupted by an impact during the first ten million years of the solar system.

Regions containing this locality

Sahara Desert, North Africa

Desert - 682 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


24 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

Detailed Mineral List:

Alabandite
Formula: MnS
Reference: Michael Zolensky et al. (2010). Mineralogy and Petrography of the Almahata Sitta ureilite, Meteoritics & Planetary Science 45, #10-11, 1618-1637. (Oct/Nov 2010).
'Albite-Anorthite Series'
Description: Plagioclase (An10-55), zoned.
Reference: Addi Bischoff, Mariam Horstmann, Andreas Pack, Matthias Laubstein & Siegfried Haberer (2010). Asteroid 2008 TC3—Almahata Sitta: A spectacular breccia containing many different ureilitic and chondritic lithologies. Meteoritics & Planetary Science 45, (#10-11), 1638-1657-1667. (Oct-Nov 2010).; Bischoff, A., Horstmann, M., Barrat, J-A., Chaussidon, M., Pack, A., Herwartz, D., Ward, D., Vollmer, C.& Decker D. (2014) Trachyandesitic volcanism in the early Solar System: Proceedings National Academy Science 111 (35): 12689-12692.
'Anomalous ureilite meteorite'
Reference: Meteoritical Society Database
'Apatite'
Reference: Bischoff, A., Horstmann, M., Barrat, J-A., Chaussidon, M., Pack, A., Herwartz, D., Ward, D., Vollmer, C.& Decker D. (2014) Trachyandesitic volcanism in the early Solar System: Proceedings National Academy Science 111 (35): 12689-12692.
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Reference: Michael Zolensky et al. (2010). Mineralogy and Petrography of the Almahata Sitta ureilite, Meteoritics & Planetary Science 45, #10-11, 1618-1637. (Oct/Nov 2010).
Chromite
Formula: Fe2+Cr3+2O4
Reference: Mariam Horstmann, Addi Bischoff, Andreas Pack & Matthias Laubstein (2010). Almahata Sitta—Fragment MS-CH: Characterization of a new chondritic ltype. Meteoritics & Planetary Science 45, (#10-11), 1657-1667. (Oct-Nov 2010).
Cohenite
Formula: Fe3C
Reference: Y. Aoyagi, T. Mikouchi, C. A. Goodrich, Michael E. Zolensky (2013). Mineralogy of Grain Boundary Metal in Ureilitic Fragments of Almahata Sitta. 76th Annual Meeting of the Meteoritical Society, held July 29-August 7, 2013 in Edmonton, Canada. Published in Meteoritics and Planetary Science Supplement, id.5231. (Sept 2013)
Daubréelite
Formula: Fe2+Cr3+2S4
Reference: Addi Bischoff, Mariam Horstmann, Andreas Pack, Matthias Laubstein & Siegfried Haberer (2010). Asteroid 2008 TC3—Almahata Sitta: A spectacular breccia containing many different ureilitic and chondritic lithologies. Meteoritics & Planetary Science 45, (#10-11), 1638-1657-1667. (Oct-Nov 2010).
Diamond
Formula: C
Reference: Michael Zolensky et al. (2010). Mineralogy and Petrography of the Almahata Sitta ureilite, Meteoritics & Planetary Science 45, #10-11, 1618-1637. (Oct/Nov 2010).
Diopside
Formula: CaMgSi2O6
Reference: Michael Zolensky et al. (2010). Mineralogy and Petrography of the Almahata Sitta ureilite, Meteoritics & Planetary Science 45, #10-11, 1618-1637. (Oct/Nov 2010).
'Fayalite-Forsterite Series'
Reference: Michael K. Weisberg, Caroline Smith, Gretchen Benedix, Cristopher K. D. Herd, Kevin Righter, Henning Hack, Akira Yamaguchi, Hasnaa Chennaoui & Jeffrey N. Grossman (2009). The Meteoritical Bulletin, No. 96, September 2009, Meteoritics & Planetary Science 44, (#9), 1355-1397.
'Feldspar Group'
Reference: Addi Bischoff, Mariam Horstmann, Andreas Pack, D. Herwatz, & S. Decker (2013). 76th Annual Meeting of the Meteoritical Society, held July 29-August 7, 2013 in Edmonton, Canada. Published in Meteoritics and Planetary Science Supplement, id.5104. (Sept 2013).; Bischoff, A., Horstmann, M., Barrat, J-A., Chaussidon, M., Pack, A., Herwartz, D., Ward, D., Vollmer, C.& Decker D. (2014) Trachyandesitic volcanism in the early Solar System: Proceedings National Academy Science 111 (35): 12689-12692.
'Glass'
Description: Silica-rich glass.
Reference: Bischoff, A., Horstmann, M., Barrat, J-A., Chaussidon, M., Pack, A., Herwartz, D., Ward, D., Vollmer, C.& Decker D. (2014) Trachyandesitic volcanism in the early Solar System: Proceedings National Academy Science 111 (35): 12689-12692.
Graphite
Formula: C
Reference: Michael K. Weisberg, Caroline Smith, Gretchen Benedix, Cristopher K. D. Herd, Kevin Righter, Henning Hack, Akira Yamaguchi, Hasnaa Chennaoui & Jeffrey N. Grossman (2009). The Meteoritical Bulletin, No. 96, September 2009, Meteoritics & Planetary Science 44, (#9), 1355-1397.
Ilmenite
Formula: Fe2+TiO3
Reference: Mariam Horstmann, Addi Bischoff, Andreas Pack & Matthias Laubstein (2010). Almahata Sitta—Fragment MS-CH: Characterization of a new chondritic ltype. Meteoritics & Planetary Science 45, (#10-11), 1657-1667. (Oct-Nov 2010).; Bischoff, A., Horstmann, M., Barrat, J-A., Chaussidon, M., Pack, A., Herwartz, D., Ward, D., Vollmer, C.& Decker D. (2014) Trachyandesitic volcanism in the early Solar System: Proceedings National Academy Science 111 (35): 12689-12692.
Iron
Formula: Fe
Description: Iron (Ni< 0.1% Ni).
Reference: Bischoff, A., Horstmann, M., Barrat, J-A., Chaussidon, M., Pack, A., Herwartz, D., Ward, D., Vollmer, C.& Decker D. (2014) Trachyandesitic volcanism in the early Solar System: Proceedings National Academy Science 111 (35): 12689-12692.
Iron var: Kamacite
Formula: (Fe,Ni)
Reference: Michael K. Weisberg, Caroline Smith, Gretchen Benedix, Cristopher K. D. Herd, Kevin Righter, Henning Hack, Akira Yamaguchi, Hasnaa Chennaoui & Jeffrey N. Grossman (2009). The Meteoritical Bulletin, No. 96, September 2009, Meteoritics & Planetary Science 44, (#9), 1355-1397.
Keilite
Formula: (Fe2+,Mg)S
Reference: Addi Bischoff, Mariam Horstmann, Andreas Pack, Matthias Laubstein & Siegfried Haberer (2010). Asteroid 2008 TC3—Almahata Sitta: A spectacular breccia containing many different ureilitic and chondritic lithologies. Meteoritics & Planetary Science 45, (#10-11), 1638-1657-1667. (Oct-Nov 2010).
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Mariam Horstmann, Addi Bischoff, Andreas Pack & Matthias Laubstein (2010). Almahata Sitta—Fragment MS-CH: Characterization of a new chondritic ltype. Meteoritics & Planetary Science 45, (#10-11), 1657-1667. (Oct-Nov 2010).
Merrillite
Formula: Ca9NaMg(PO4)7
Reference: Bischoff, A., Horstmann, M., Barrat, J-A., Chaussidon, M., Pack, A., Herwartz, D., Ward, D., Vollmer, C.& Decker D. (2014) Trachyandesitic volcanism in the early Solar System: Proceedings National Academy Science 111 (35): 12689-12692.
Niningerite
Formula: (Mg,Fe2+,Mn2+)S
Reference: Addi Bischoff, Mariam Horstmann, Andreas Pack, Matthias Laubstein & Siegfried Haberer (2010). Asteroid 2008 TC3—Almahata Sitta: A spectacular breccia containing many different ureilitic and chondritic lithologies. Meteoritics & Planetary Science 45, (#10-11), 1638-1657-1667. (Oct-Nov 2010).
Oldhamite
Formula: (Ca,Mg)S
Reference: Ahmed El Goresy, Y. Lin, L. Feng, M. Boyet, J. Hao, J. Zhang & L. Dubrovinsky (2012). Almahata Sitta EL-3 Chondrites: Sinoite, Graphite, and Oldhamite (CsS) Assemblages C- and N-Isotopic Compositions and REE Patterns. 75th Annual Meeting of the Meteoritical Society, held August 12-17, 2012 in Cairns, Australia. Published in Meteoritics and Planetary Science Supplement, id.5108. ( Sept2012).
Perryite
Formula: (Ni,Fe)5(Si,P)2
Reference: Addi Bischoff, Mariam Horstmann, Andreas Pack, Matthias Laubstein & Siegfried Haberer (2010). Asteroid 2008 TC3—Almahata Sitta: A spectacular breccia containing many different ureilitic and chondritic lithologies. Meteoritics & Planetary Science 45, (#10-11), 1638-1657-1667. (Oct-Nov 2010).
Pigeonite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Reference: Michael K. Weisberg, Caroline Smith, Gretchen Benedix, Cristopher K. D. Herd, Kevin Righter, Henning Hack, Akira Yamaguchi, Hasnaa Chennaoui & Jeffrey N. Grossman (2009). The Meteoritical Bulletin, No. 96, September 2009, Meteoritics & Planetary Science 44, (#9), 1355-1397.
'Pyroxene Group'
Reference: Michael K. Weisberg, Caroline Smith, Gretchen Benedix, Cristopher K. D. Herd, Kevin Righter, Henning Hack, Akira Yamaguchi, Hasnaa Chennaoui & Jeffrey N. Grossman (2009). The Meteoritical Bulletin, No. 96, September 2009, Meteoritics & Planetary Science 44, (#9), 1355-1397.
Schreibersite
Formula: (Fe,Ni)3P
Reference: Addi Bischoff, Mariam Horstmann, Andreas Pack, Matthias Laubstein & Siegfried Haberer (2010). Asteroid 2008 TC3—Almahata Sitta: A spectacular breccia containing many different ureilitic and chondritic lithologies. Meteoritics & Planetary Science 45, (#10-11), 1638-1657-1667. (Oct-Nov 2010).
'Silica'
Reference: Michael Zolensky et al. (2010). Mineralogy and Petrography of the Almahata Sitta ureilite, Meteoritics & Planetary Science 45, #10-11, 1618-1637. (Oct/Nov 2010).
Sinoite
Formula: Si2N2O
Reference: Ahmed El Goresy, Y. Lin, L. Feng, M. Boyet, J. Hao, J. Zhang & L. Dubrovinsky (2012). Almahata Sitta EL-3 Chondrites: Sinoite, Graphite, and Oldhamite (CsS) Assemblages C- and N-Isotopic Compositions and REE Patterns. 75th Annual Meeting of the Meteoritical Society, held August 12-17, 2012 in Cairns, Australia. Published in Meteoritics and Planetary Science Supplement, id.5108. ( Sept2012).
Spinel
Formula: MgAl2O4
Reference: Mariam Horstmann, Addi Bischoff, Andreas Pack & Matthias Laubstein (2010). Almahata Sitta—Fragment MS-CH: Characterization of a new chondritic ltype. Meteoritics & Planetary Science 45, (#10-11), 1657-1667. (Oct-Nov 2010).; Bischoff, A., Horstmann, M., Barrat, J-A., Chaussidon, M., Pack, A., Herwartz, D., Ward, D., Vollmer, C.& Decker D. (2014) Trachyandesitic volcanism in the early Solar System: Proceedings National Academy Science 111 (35): 12689-12692.
Suessite
Formula: (Fe,Ni)3Si
Reference: Addi Bischoff, Mariam Horstmann, Andreas Pack, Matthias Laubstein & Siegfried Haberer (2010). Asteroid 2008 TC3—Almahata Sitta: A spectacular breccia containing many different ureilitic and chondritic lithologies. Meteoritics & Planetary Science 45, (#10-11), 1638-1657-1667. (Oct-Nov 2010).
Taenite
Formula: (Fe,Ni)
Reference: Mariam Horstmann, Addi Bischoff, Andreas Pack & Matthias Laubstein (2010). Almahata Sitta—Fragment MS-CH: Characterization of a new chondritic ltype. Meteoritics & Planetary Science 45, (#10-11), 1657-1667. (Oct-Nov 2010).
Troilite
Formula: FeS
Reference: Michael K. Weisberg, Caroline Smith, Gretchen Benedix, Cristopher K. D. Herd, Kevin Righter, Henning Hack, Akira Yamaguchi, Hasnaa Chennaoui & Jeffrey N. Grossman (2009). The Meteoritical Bulletin, No. 96, September 2009, Meteoritics & Planetary Science 44, (#9), 1355-1397.; Bischoff, A., Horstmann, M., Barrat, J-A., Chaussidon, M., Pack, A., Herwartz, D., Ward, D., Vollmer, C.& Decker D. (2014) Trachyandesitic volcanism in the early Solar System: Proceedings National Academy Science 111 (35): 12689-12692.
Wüstite
Formula: FeO
Reference: Mariam Horstmann, M. Humayun, D. Harries, F. Langenhorst, N. L. Chabot & Addi Bischoff (2012). 43rd Lunar and Planetary Science Conference, held March 19-23, 2012 at The Woodlands, Texas. LPI Contribution No. 1659, id.1876.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Cohenite'1.BA.05Fe3C
'Diamond'1.CB.10aC
'Graphite'1.CB.05aC
'Iron'1.AE.05Fe
var: Kamacite1.AE.05(Fe,Ni)
Perryite1.BB.10(Ni,Fe)5(Si,P)2
Schreibersite1.BD.05(Fe,Ni)3P
Sinoite1.DB.10Si2N2O
Suessite1.BB.05(Fe,Ni)3Si
Taenite1.AE.10(Fe,Ni)
Group 2 - Sulphides and Sulfosalts
'Alabandite'2.CD.10MnS
'Daubréelite'2.DA.05Fe2+Cr3+2S4
Keilite2.CD.10(Fe2+,Mg)S
Niningerite2.CD.10(Mg,Fe2+,Mn2+)S
Oldhamite2.CD.10(Ca,Mg)S
Troilite2.CC.10FeS
Group 4 - Oxides and Hydroxides
'Chromite'4.BB.05Fe2+Cr3+2O4
'Ilmenite'4.CB.05Fe2+TiO3
Magnetite4.BB.05Fe2+Fe3+2O4
Spinel4.BB.05MgAl2O4
Wüstite4.AB.25FeO
Group 8 - Phosphates, Arsenates and Vanadates
Merrillite8.AC.45Ca9NaMg(PO4)7
Group 9 - Silicates
'Augite'9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
'Diopside'9.DA.15CaMgSi2O6
Pigeonite9.DA.10(CaxMgyFez)(Mgy1Fez1)Si2O6
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Anomalous ureilite meteorite'-
'Apatite'-
'Fayalite-Forsterite Series'-
'Feldspar Group'-
'Glass'-
Pyroxene Group-
Silica-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Cohenite1.1.16.1Fe3C
Iron
var: Kamacite
1.1.11.1(Fe,Ni)
Perryite1.1.22.1(Ni,Fe)5(Si,P)2
Schreibersite1.1.21.2(Fe,Ni)3P
Suessite1.1.23.1(Fe,Ni)3Si
Taenite1.1.11.2(Fe,Ni)
Semi-metals and non-metals
Diamond1.3.6.1C
Graphite1.3.6.2C
Sinoite1.3.9.1Si2N2O
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Alabandite2.8.1.4MnS
Troilite2.8.9.1FeS
AmBnXp, with (m+n):p = 3:4
Daubréelite2.10.1.11Fe2+Cr3+2S4
Group 4 - SIMPLE OXIDES
AX
Wüstite4.2.1.6FeO
A2X3
Ilmenite4.3.5.1Fe2+TiO3
Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Magnetite7.2.2.3Fe2+Fe3+2O4
Spinel7.2.1.1MgAl2O4
Group 38 - ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
(AB)3(XO4)2
Merrillite38.3.4.4Ca9NaMg(PO4)7
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Augite65.1.3a.3(CaxMgyFez)(Mgy1Fez1)Si2O6
Diopside65.1.3a.1CaMgSi2O6
Pigeonite65.1.1.4(CaxMgyFez)(Mgy1Fez1)Si2O6
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Anomalous ureilite meteorite'-
'Apatite'-
'Fayalite-Forsterite Series'-
'Feldspar Group'-
'Glass'-
Iron-Fe
Keilite-(Fe2+,Mg)S
Niningerite-(Mg,Fe2+,Mn2+)S
Oldhamite-(Ca,Mg)S
'Pyroxene Group'-
'Silica'-

List of minerals for each chemical element

CCarbon
C CoheniteFe3C
C DiamondC
C GraphiteC
NNitrogen
N SinoiteSi2N2O
OOxygen
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O ChromiteFe2+Cr23+O4
O DiopsideCaMgSi2O6
O IlmeniteFe2+TiO3
O MagnetiteFe2+Fe23+O4
O MerrilliteCa9NaMg(PO4)7
O Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
O SinoiteSi2N2O
O SpinelMgAl2O4
O WüstiteFeO
NaSodium
Na MerrilliteCa9NaMg(PO4)7
MgMagnesium
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg DiopsideCaMgSi2O6
Mg MerrilliteCa9NaMg(PO4)7
Mg Niningerite(Mg,Fe2+,Mn2+)S
Mg Oldhamite(Ca,Mg)S
Mg Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg SpinelMgAl2O4
AlAluminium
Al SpinelMgAl2O4
SiSilicon
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si DiopsideCaMgSi2O6
Si Perryite(Ni,Fe)5(Si,P)2
Si Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si SinoiteSi2N2O
Si Suessite(Fe,Ni)3Si
PPhosphorus
P MerrilliteCa9NaMg(PO4)7
P Perryite(Ni,Fe)5(Si,P)2
P Schreibersite(Fe,Ni)3P
SSulfur
S AlabanditeMnS
S DaubréeliteFe2+Cr23+S4
S Keilite(Fe2+,Mg)S
S Niningerite(Mg,Fe2+,Mn2+)S
S Oldhamite(Ca,Mg)S
S TroiliteFeS
CaCalcium
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca DiopsideCaMgSi2O6
Ca MerrilliteCa9NaMg(PO4)7
Ca Oldhamite(Ca,Mg)S
Ca Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
TiTitanium
Ti IlmeniteFe2+TiO3
CrChromium
Cr ChromiteFe2+Cr23+O4
Cr DaubréeliteFe2+Cr23+S4
MnManganese
Mn AlabanditeMnS
FeIron
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe ChromiteFe2+Cr23+O4
Fe CoheniteFe3C
Fe DaubréeliteFe2+Cr23+S4
Fe IlmeniteFe2+TiO3
Fe IronFe
Fe Iron (var: Kamacite)(Fe,Ni)
Fe Keilite(Fe2+,Mg)S
Fe MagnetiteFe2+Fe23+O4
Fe Perryite(Ni,Fe)5(Si,P)2
Fe Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe Schreibersite(Fe,Ni)3P
Fe Suessite(Fe,Ni)3Si
Fe Taenite(Fe,Ni)
Fe TroiliteFeS
Fe WüstiteFeO
NiNickel
Ni Iron (var: Kamacite)(Fe,Ni)
Ni Perryite(Ni,Fe)5(Si,P)2
Ni Schreibersite(Fe,Ni)3P
Ni Suessite(Fe,Ni)3Si
Ni Taenite(Fe,Ni)

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

Holocene
0 - 0.0117 Ma



ID: 3193150
Cenozoic sedimentary rocks

Age: Anthropocene (0 - 0.0117 Ma)

Lithology: Sandstone-siltstone

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]

Quaternary
0 - 2.588 Ma



ID: 3310688

Age: Pleistocene (0 - 2.588 Ma)

Lithology: Sedimentary

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

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)
Goodrich, Cyrena Anne (1992). Ureilites: A critical review. Meteoritics: 27(4): 327–352. (September, 1992).
Weisberg, Michael K., Caroline Smith, Gretchen Benedix, Christopher D. K. Herd, Kevin Righter, Henning Haack, Akira Yamaguchi, Hasnaa Chennaoui Aoudjehane & Jeffrey N. Grossman (2009). The Meteoritical Bulletin, No. 96, September 2009. Meteoritics & Planetary Science: 44(9): 1355–1397.
Bischoff, Addi , Mariam Horstmann, Andreas Pack, Matthias Laubstein & Siegfried Haberer (2010). Asteroid 2008 TC3—Almahata Sitta: A spectacular breccia containing many different ureilitic and chondritic lithologies. Meteoritics & Planetary Science: 45(10/11): 1638-1657-1667. (October - November, 2010).
Zolensky, Michael et al. (2010). Mineralogy and Petrography of the Almahata Sitta ureilite, Meteoritics & Planetary Science: 45(10/11): 1618-1637. (October-November, 2010).
Bischoff, A., Horstmann, M., Barrat, J-A., Chaussidon, M., Pack, A., Herwartz, D., Ward, D., Vollmer, C.& Decker D. (2014) Trachyandesitic volcanism in the early Solar System: Proceedings National Academy Science 111 (35): 12689-12692.

External Links



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