| MetSoc Home Publications Contacts |
|
||
|
||
| El Médano 465 | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basic information | Name: El Médano 465 This is an OFFICIAL meteorite name. Abbreviation: EM 465 Observed fall: No Year found: 2019 Country: Chile Mass:  5.23 kg | ||||||||||||||||||||||||||||||||||||
| 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 14 Nov 2020 | ||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 109:
El Médano 465 (EM 465) 24°51’S, 70°32’W Antofagasta, Chile Find: 2019 Jan 10 Classification: Carbonaceous chondrite (CO3) Physical characteristics: Single brown stone. Petrography: (J. Gattacceca, CEREGE) Chondrite with well-defined chondrules (average apparent diameter 200±80 µm, n=26) and CAIs (to 600 µm) set in abundant (31 vol%) fine-grained iron-rich matrix. Opaque minerals are mostly kamacite. Geochemistry: Olivine Fa27.1±16.5, range Fa4.8-53.1, Fa PMD = 54%, Cr2O3 0.08±0.04 (n=25). Low-Ca pyroxene Fs1.5±0.1Wo1.5±0.8 (n=7). Ca-pyroxene Fs33.1Wo51.0 (n=1). Classification: Carbonaceous chondrite (CO3). Likely paired with El Médano 216. | ||||||||||||||||||||||||||||||||||||
| Data from: MB109 Table 0 Line 0: |
|
||||||||||||||||||||||||||||||||||||
| 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) |
||||||||||||||||||||||||||||||||||||
| Catalogs: |
| ||||||||||||||||||||||||||||||||||||
| References: | Published in Meteoritical Bulletin, no. 109, in preparation (2020)
| ||||||||||||||||||||||||||||||||||||
Geography:
|
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) | ||||||||||||||||||||||||||||||||||||
| Proximity search: | |||||||||||||||||||||||||||||||||||||