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| El Hassan Ould Hamed 002 | |||||||||||||||||||||||||||||||||||||||
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| Basic information | Name: El Hassan Ould Hamed 002 This is an OFFICIAL meteorite name. Abbreviation: EHOH 002 Observed fall: No, but it is possible Year found: 2021 Country: Mauritania Mass:  5.45 kg | ||||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 2024 approved meteorites (plus 4 unapproved names) classified as L4. [show all] Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||||||||
| Comments: |
Approved 12 Feb 2022 Revised 3 Apr 2022: Adjusted mass | ||||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 111:
El Hassan Ould Hamed 002 (EHOH 002) 25°54’48.0"N, 7°30’43.4"W Tiris Zemmour, Mauritania Find, possible fall: 2021 Nov Classification: Ordinary chondrite (L4) History: On November 6, 2021, at around 1 pm Saharawi people residing in the refugee camp of Dakhla (about 200 km south of Tindouf, Algeria) heard a strong sonic boom confirmed by many people in the neighboring countries of Mauritania and Western Sahara. A few days later, many meteorite fragments with fresh fusion crust have been recovered by meteorite hunters in northern Mauritania close to the Algerian border (Tindouf province). Mr. Salamu Ali purchased a 446 g fragment and submitted it for classification. Ziyao Wang owns an additional 5 kg. Physical characteristics: Almost completely covered with fresh fusion crust. Cut surfaces reveal a fresh light grayish interior with minor orange halos around shiny metal grains. Petrography: The meteorite shows a chondritic texture with well-defined, mostly rounded, packed porphyritic and barred chondrules (apparent mean diameter about 0.7 µm) in a fine-grained matrix that contains unaltered sulfides and FeNi metal. Geochemistry: olivine: Fa24.2±0.1 (Fa23.9-24.4, n=11); low-Ca pyroxene: Fs20.2±0.2Wo2.1±0.1 (Fs19.9-20.6Wo1.9-2.2, n=11); Ca-pyroxene: Fs8.4±0.1Wo43.8±0.2 (Fs8.2-8.6Wo43.5-44.2, n=5); feldspar: An10.6±0.1Ab83.7±0.6Or5.7±0.6, n=4 Classification: Ordinary chondrite (L4) | ||||||||||||||||||||||||||||||||||||||
| Data from: MB111 Table 0 Line 0: |
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| Institutions and collections |
Cascadia: Cascadia Meteorite Laboratory, Portland State University, Department of Geology, Room 17 Cramer Hall, 1721 SW Broadway, Portland, OR 97201, United States; Website (institutional address; updated 28 Oct 2011) MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011) UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015) UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012) WangZ: Ziyao Wang, Hebei GEO University North Campus, Huai An dong road 127, Shijiazhuang, Hebei Province , China (private address; updated 25 Jun 2021) |
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| References: | Published in Meteoritical Bulletin, no. 111, in preparation (2022)
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Geography:
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Statistics: This is 1 of 20 approved meteorites from Tiris Zemmour, Mauritania (plus 1 impact crater) This is 1 of 200 approved meteorites from Mauritania (plus 2 unapproved names) (plus 2 impact craters) | ||||||||||||||||||||||||||||||||||||||
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