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Sierra Gorda 022 | |||||||||||||||||||||||||||||||||||||||
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Basic information | Name: Sierra Gorda 022 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2018 Country: Chile Mass: 97.2 g | ||||||||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 8876 approved meteorites (plus 5 unapproved names) classified as L5. [show all] Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||||||||
Comments: | Approved 27 Sep 2019 | ||||||||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 108:
Sierra Gorda 022 22°30.042’S, 69°01.475’W Antofagasta, Chile Find: 30 Mar 2018 Classification: Ordinary chondrite (L5) History: Meteorite (1 piece) was found on March 30 2018 by Ilya Chaplygin during desert meteorite search organized by Timur Kryachko. Date of fall is unknown. Physical characteristics: Single stone of rounded shape almost completely covered with black fusion crust. Broken part is brown. Fresh cut shows light gray-brown interior. Bottom part is covered with light-colored desert material.Dimentions 10,5x15x8,5 cm. Geochemistry: Mineral composition and Geochemistry: EDS-WDS analyses (V.I. Taskaev, IGEM RAS). The primary chondrite paragenesis includes olivine Fa24.41±1.09 (N=7), orthopyroxene Fs20.1±1.04Wo1.54±0.38 (N=9), plagioclase Ab78.5An14.8Or6.5 (N=8), chromite-spinel Crt72Spl10.9Usp7.72 (n=2). Composition of kamacite (in wt., %, N=5): Fe 91.44, Ni ? 6.27 , Co ? 1.02 and taenite (in wt., %, N=3): Fe 61.1, Ni ? 37.92 , Co ? 0.42. Troilite is close to FeS. Classification: (Pavel Yu. Plechov, FMMR). Ordinary chondrite. L5, S1, W1 Specimens: Mr. I. Chaplygin holds main mass 97.15 g. 20 g and thin section ? FMMR. | ||||||||||||||||||||||||||||||||||||||
Data from: MB108 Table 0 Line 0: |
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Institutions and collections |
USP: Museu de Geociências - USP
Rua do Lago, 562
CEP: 05508-080
Butantã - SP
Brazil, Brazil; Website (institutional address; updated 16 Feb 2024) IGEM: Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry, Russian Academy of Sciences, Staromonetny Per., 35, Moscow, 119017 , Russia (institutional address; updated 16 Dec 2010) FMMR: Fersman Mineralogical Museum, Leninskiy prospekt 18 korpus 2, Moscow, Russia, 119071, Russia; Website (institutional address; updated 24 Feb 2018) |
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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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Photos: |
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Geography: |
Statistics: This is 1 of 3417 approved meteorites from Antofagasta, Chile (plus 12 unapproved names) (plus 1 impact crater) This is 1 of 3446 approved meteorites from Chile (plus 13 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||||||||||
Proximity search: | |||||||||||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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