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| El Médano 464 | |||||||||||||||||||||||||||||||||||||
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| Basic information | Name: El Médano 464 This is an OFFICIAL meteorite name. Abbreviation: EM 464 Observed fall: No Year found: 2019 Country: Chile Mass:  7.09 kg | ||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 636 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 14 Nov 2020 | ||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 109:
El Médano 464 (EM 464) 24°51’S, 70°32’W Antofagasta, Chile Find: 2019 Jan 09 Classification: Carbonaceous chondrite (CO3) Physical characteristics: Single brown stone. Petrography: (J. Gattacceca, CEREGE) Chondrite with well-defined chondrules (average apparent diameter ~200 µm) and CAIs (to 500 µm) set in abundant fine-grained iron-rich matrix. Opaque minerals are mostly kamacite. Geochemistry: Olivine Fa22.7±12.9, range Fa0.3-39.7, Fa PMD = 46% (n=8), Cr2O3 in ferroan olivine 0.09±0.03 wt% (n=7). Low-Ca pyroxene Fs1.6±0.7 (n=2). Classification: Carbonaceous chondrite (CO3). Likely paired with El Médano 216. | ||||||||||||||||||||||||||||||||||||
| Data from: MB109 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 29 Oct 2018) MMC: Museo del Meteorito, Tocopilla 401, San Pedro de Atacama, Chile. or Alonso de Ercilla 1250, La Herradura, Coquimbo, Chile, Chile; Website (institutional address; updated 11 Mar 2014) |
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| Catalogs: |
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| References: | Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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Geography:
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Statistics: This is 1 of 2687 approved meteorites from Antofagasta, Chile (plus 9 unapproved names) (plus 1 impact crater) This is 1 of 2716 approved meteorites from Chile (plus 15 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||||||||
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