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| El Médano 322 | |||||||||||||||||||||||||||||||||||||||
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| Basic information | Name: El Médano 322 This is an OFFICIAL meteorite name. Abbreviation: EM 322 Observed fall: No Year found: 2013 Country: Chile Mass:  359 g | ||||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 40 approved meteorites classified as H5-melt breccia. [show all] Search for other: H chondrites, H chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||||||||
| Comments: | Approved 15 Oct 2016 | ||||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 105:
El Médano 322 (EM 322) ~24°51’S, ~70°32’W Antofagasta, Chile Find: 2013 Nov 2 Classification: Ordinary chondrite (H5, melt breccia) Petrography: Chondritic breccia composed of large type 5 clasts in a melt matrix. The type 5 clasts show pervasive shock darkening, with abundant troilite and metal veinlets and droplets. Chondrules are visible, and plagioclase average size is below 50 μm. Most metal and sulfides are in the form of eutectic mixtures with grain size to mm. Plagioclase-chromite assemblages to several hundreds μm are found. The melt part also contains troilite and metal eutectic mixtures, with smaller average grain size compared to the clasts. Geochemistry: Olivine and orthopyroxene compositions are the same in the molten host and the type 5 clasts Classification: H5-impact melt breccia. | ||||||||||||||||||||||||||||||||||||||
| Data from: MB105 Table 0 Line 0: |
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| Institutions and collections |
CEREGE: CEREGE
BP 80
Avenue Philibert, Technopole de l'Arbois
13545 Aix-en-Provence Cedex 4
France, France (institutional address; updated 10 Jun 2023) |
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| Catalogs: |
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| References: | Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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Geography:
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Statistics: This is 1 of 3442 approved meteorites from Antofagasta, Chile (plus 12 unapproved names) (plus 1 impact crater) This is 1 of 3471 approved meteorites from Chile (plus 13 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||||||||||
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| Also see: |
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| Revision history: |
This lists important revisions made to data for this record.
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