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| El Médano 397 | |||||||||||||||||||||||||||||||||||||||
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| Basic information | Name: El Médano 397 This is an OFFICIAL meteorite name. Abbreviation: EM 397 Observed fall: No Year found: 2016 Country: Chile Mass:  1242 g | ||||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 639 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 17 Feb 2019 | ||||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 108:
El Médano 397 (EM 397) 24°51’S , 70°32’W Antofagasta, Chile Find: 2016 Nov Classification: Carbonaceous chondrite (CO3) History: The meteorite was found in November 2016 in the Atacama desert by Rodrigo Martinez while looking for meteorites Physical characteristics: Brown stone. Cut face reveals brownish interior with small chondrules Petrography: Chondrules (predominantly of type I) and small CAIs set in a fine-grained Fe-rich matrix. Average chondrule apparent size about 170±90 μm. Opaques are metal and troilite. Geochemistry: Olivine Fa15.9±15.7, PMD=83%, range Fa0.7-43.8 (n=8), Cr2O3 in ferroan olivine is 0.13±0.06 wt% (n=7). low-Ca pyroxene Fs2.0Wo1.9 (n=1) Classification: Carbonaceous chondrite (CO3) Specimens: 45 g and a polished section at CEREGE. Main mass at MMC. | ||||||||||||||||||||||||||||||||||||||
| Data from: MB108 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) 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. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
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Geography:
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Statistics: This is 1 of 2908 approved meteorites from Antofagasta, Chile (plus 10 unapproved names) (plus 1 impact crater) This is 1 of 2937 approved meteorites from Chile (plus 13 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||||||||||
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