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El-Oued
Basic information Name: El-Oued
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 1952
Country: Algeria
Mass:help 2.31 kg
Classification
  history:
Meteoritical Bulletin:  MB 95  (2009)  H4
Recommended:  H4    [explanation]

This is 1 of 5993 approved meteorites (plus 2 unapproved names) classified as H4.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 23 Dec 2008
Writeuphelp
Writeup from MB 95:

El-Oued          31°32'N, 8°53'E

Algeria

Found 1952

Ordinary chondrite (H4)

History: The meteorite was recognized by Smail Mostefaoui in his hometown El-Oued at the regional Museum "Le petit Musée du Monde." The present director of the Museum, Mr. Ahmed Chaouki Bouclifa, explained that the meteorite was discovered in 1952 by the French army during their patrol in Zemoul el Merkr dunes Southeast of the El-Oued city.

Physical characteristics: The total mass = 2.305 kg in two pieces (1.485 and 0.820 kg). The fusion crust in both fragments is incomplete and has little rust and brownish color. The interior is darker.

Petrography (M. Bourot-Denise, MNHNP): The chondritic texture is clearly visible. The metal is almost completely altered. The silicates show cracks filled with Fe-hydroxide. Some melt pockets are present; one thin section is crossed with a cm-sized vein of polycrystalline sulfide. Some olivine grains contain sulfide-filled cracks.

Mineral compositions and geochemistry: Olivine: mean Fa = 20.1 ± 0.8; low-Ca pyroxene: mean Fs = 17.3 ± 0.6. The magnetic susceptibility value (log χ = 4.61) measured by J. Gattacceca (CEREGE) is consistent with a high weathering degree.

Classification: Ordinary chondrite H4; W3/W4; S3.

Type specimens: A total of 30 g (2 pieces and two thin sections) is on deposit at MNHN. The Museum in El-Oued holds the main mass.

Data from:
  MB95
  Table 1
  Line 1:
State/Prov/County:Algeria
Date:1952
Latitude:31°32'N
Longitude:8°53'E
Mass (g):2305
Pieces:2
Class:H4
Shock stage:S3
Weathering grade:W3/4
Fayalite (mol%):20.1±0.8
Ferrosilite (mol%):17.3±0.6
Magnetic suscept.:4.61
Classifier:M. Bourot-Denise
Type spec mass (g):30
Type spec location:MNHNP
Main mass:Museum in EI-Oued
Institutions
   and collections
CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 29 Oct 2018)
MNHNP: Museum National d'Histoire Naturelle, IMPMC-CP52, 57 rue Cuvier, 75005 Paris, France, France; Website (institutional address)
MNHN: Museum National d'Histoire Naturelle, IMPMC-CP52, 57 rue Cuvier, 75005 Paris, France, France; Website (institutional address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 95, MAPS 44, 429-462 (2009)
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Geography:

Algeria
Coordinates:
     Recommended::   (31° 32'N, 8° 53'E)

Statistics:
     This is 1 of 25 approved meteorites from Ouargla, Algeria
     This is 1 of 1042 approved meteorites from Algeria (plus 26 unapproved names) (plus 4 impact craters)
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