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Antarctica 001 | |||||||||||||||||||||||||||||
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Basic information | Name: Antarctica 001 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 1992 or 1993 Country: Antarctica [Collected by a pilot supporting ANSMET] Mass: 2.3 kg | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 22 approved meteorites classified as L/LL4. [show all] Search for other: L chondrites, L/LL chondrites, L/LL chondrites (type 4-7), LL chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||
Comments: | Approved 1 Jan 2020 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 109:
Antarctica 001 Antarctica Find: 1992-1993 Classification: Ordinary chondrite (L/LL4) History: Two fragments weighing 1904 g and 399 g were collected by a Canadian pilot supporting ANSMET searching during the 1992-93 season, from an unspecified location within Antarctica. Physical characteristics: Both masses have little fusion crust and show well-defined chondrules. Iron staining is prevalent. The two masses fit together. Petrography: (C. Herd, UAb) Optical and microprobe examination of a polished thin section of each fragment shows well-defined chondrules in a fine-grained, clastic matrix. Chondrule glass was sought but not found, although equilibration is locally variable based on microprobe results. Sharp optical extinction with < 2° angular variation in olivine. Minor iron staining is present locally. Weathering grade according to Zurfluh et al. (2016); shock stage according to Fritz et al. (2017). Geochemistry: (C. Herd, UAb) Data obtained by EMP examination of two carbon-coated thin sections consisting of 7 chips of the rock: Olivine Fa26.4±1.4 (n=157); Low-Ca Pyroxene Fs19.1±4.0Wo1.2±1.1 (n=85). Classification: Ordinary chondrite, L/LL4 Specimens: Entire specimens, including two thin sections are at UAb. Difference between recovered weight and type specimen is due to cutting losses. | ||||||||||||||||||||||||||||
Bibliography: |
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Data from: MB109 Table 0 Line 0: |
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Institutions and collections |
UAb: 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB, T6G 2E3, Canada, Canada; Website (institutional address; updated 17 Oct 2011) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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Geography: |
Statistics: This is 1 of 44543 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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