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Río Cuarto 001 | |||||||||||||||||||
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Basic information | Name: Río Cuarto 001 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: unknown Country: Argentina Mass: ![]() | ||||||||||||||||||
Classification history: |
This is 1 of 569 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||
Comments: | Approved 28 Mar 2007 | ||||||||||||||||||
Writeup![]() |
Writeup from MB 91:
Río Cuarto 001 32°52.3′′S, 64°13.4′ W Río Cuarto, Cordoba Province, Argentina Find: 11 October 2000 Achondrite (eucrite, polymict basaltic) History: A single stone was found in a deflation hollow (formed within a parabolic dune) during an expedition to the Pampean Plain of Argentina by P. A. Bland (ICL), C. R. de Souza Filho (UEdeC), and J. Coniglio (UNdeRC). Physical characteristics: The 62.7 g meteorite is largely covered with a matte black, slightly weathered fusion crust. Broken surfaces and thin sections are bright gray in color with clasts clearly visible. Petrography: (J. Levine, UChi; P. A. Bland, ICL) The meteorite consists of larger (up to 1 mm) mineral and lithic clasts set in a fine-grained matrix composed of 10–50 µm size plagioclase and pyroxene fragments. Polycrystalline clasts occur from a variety of sources, reflected in the large range of pyroxene compositions. Areas with fine-grained recrystallized melt are commonly seen. Pigeonite clasts with augite exsolution lamellae are observed. Larger fragments include plagioclase, Ca pyroxene, and basaltic clasts; plagioclase contains pigeonite and troilite inclusions. Accessory minerals, including olivine, troilite, spinel (mostly chromite), ilmenite, metal, and a silica polymorph, have been observed. Mineral compositions and geochemistry: Plagioclase (An92.9; range An89.7–96.6), orthopyroxene (Fs37.2–77.1Wo0.3–4.8), pigeonite (Fs62.6–85.8Wo5.3–16.6), and augite (Fs35.4–72.6Wo21.3–43.5). Classification: Achondrite (polymict basaltic eucrite). Type specimen: 50.67 g is on deposit at UNdeRC. A 5.09 g specimen and polished thin section are on deposit at ICL. Fragments totaling 1.79 g, a polished thin section, and polished epoxy mount are on deposit at UChi. | ||||||||||||||||||
Data from: MB91 Table 3 Line 17: |
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Institutions and collections |
UChi: University of Chicago, Chicago, IL 60637, United States (institutional address; updated 28 Feb 2011) ICL: Impacts and Astromaterials Research Centre, Department of Earth Science and Engineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, United Kingdom (institutional address) Messerli: No contact information provided. (private address) UEdeC: Universidade Estadual de Campina, Argentina (institutional address) UNdeRC: Universidad Nacional de Río Cuarto, Argentina (institutional address) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 91, MAPS 42, 413-466 (2007)
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Geography:![]() |
Statistics: This is 1 of 10 approved meteorites from Cordoba, Argentina (plus 1 impact crater) This is 1 of 81 approved meteorites from Argentina (plus 9 unapproved names) (plus 2 impact craters) | ||||||||||||||||||
Proximity search: |