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| El Médano 209 | |||||||||||||||||||||||||||||||||||||||
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| Basic information | Name: El Médano 209 This is an OFFICIAL meteorite name. Abbreviation: EM 209 Observed fall: No Year found: 2011 Country: Chile Mass:  9.7 g | ||||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 645 approved meteorites (plus 1 unapproved name) classified as CO3. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites | ||||||||||||||||||||||||||||||||||||||
| Comments: | Approved 18 Nov 2013 | ||||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 102:
El Médano 209 ~24°51’S, ~70°32’W Antofagasta, Chile Found: 2011 Oct 24 Classification: Carbonaceous chondrite (CO3) History: A single dark stone was found in the Atacama desert by Cécile Cournède in October 2011. Petrography: (J. Gattacceca, CEREGE) Abundant chondrules, predominantly of type I in a dark matrix. Chondrule:matrix ratio is ~1:1. Olivine in type I chondrules is zoned. Chondrule size ranges from <100 μm to 500 μm, with an average 224±82 μm (N=31). Geochemistry: Olivine in the range Fa0.4-36.9 (mean Fa7.5±12.0, PMD=112%, N=14). Low-Ca pyroxene Fs7.5±4.4 Wo2.4±1.3 (N=6). Cr2O3 in ferroan olivine is 0.15±0.26 wt% (N=8). Magnetic susceptibility log χ = 4.36 (c in 10-9 m3/kg). Classification: Carbonaceous chondrite (CO3). Strong weathering. Specimens: Type specimen (4 g) and main mass at CEREGE. | ||||||||||||||||||||||||||||||||||||||
| Data from: MB102 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. 102, MAPS 50, 1662, September 2015
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Geography:
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Statistics: This is 1 of 3440 approved meteorites from Antofagasta, Chile (plus 12 unapproved names) (plus 1 impact crater) This is 1 of 3469 approved meteorites from Chile (plus 13 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||||||||||
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| Revision history: |
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