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Grove Mountains 051523 | |||||||||||||||||
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Basic information | Name: Grove Mountains 051523 This is an OFFICIAL meteorite name. Abbreviation: GRV 051523 Observed fall: No Year found: 2006 Country: Antarctica [Collected by Chinese Antarctic Research Expedition (CARE)] Mass: 0.8 g | ||||||||||||||||
Classification history: |
This is 1 of 276 approved meteorites classified as Eucrite-mmict. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||
Comments: |
Approved 4 Mar 2008 Revised 4 Aug 2008: final writeup; 2008-07-05 Had been incorrectly listed as a ureilite | ||||||||||||||||
Writeup |
Writeup from MB 93:
Grove Mountains 051523 72°56'6.2''S, 75°18'51''E Grove Mountains, Antarctica Find: 11 January 2006 Achondrite (eucrite) History and Physical characteristics: The meteorite was found in a small moraine west to the middle segment of the Gale Escarpment in Grove Mountains by Y. Lin. It has a peanut-like shape most covered by glazy fusion crust. White clasts of plagioclase can be seen under the crust and areas without the crust. The meteorite weighs 0.8 g. Petrography: (Y. Lin, S. Hu, T. Liu and L. Feng, IGGCAS) It consists mainly of coarse-grained pyroxenes and plagioclase. Pyroxenes show exsolution of augite lamellae in pigeonite or vice-versa. The meteorite is heavily shocked and brecciated. Tiny inclusions of chromite in pyroxene are common. Among large fragments of silicates, there is regolith-like matrix. Sulfides occur mainly along cracks and/or boundaries of pyroxenes. Mineral compositions and Geochemistry: (Y. Lin, T. Liu, S. Hu, and L. Feng, IGGCAS). Low Ca-pyroxene (Fs54.1-4.1; FeO/MnO = 29.4-0.7) augite (Fs22Wo44), plagioclase (An87.6-90.2Ab9.6-12.0). Olivine (Fa75; FeO/MnO = 38-41). Classification: Achondrite (eucrite); extensively shocked, monomict breccia, minimally weathered. Type specimens: PRIC holds the main mass and a polished section. | ||||||||||||||||
Data from: MB93 Table 6 Line 455: |
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Institutions and collections |
PRIC: Polar Research Institute of China, 451 Jinqiao Road, Shanghai 200129, China; Website (institutional address; updated 9 Apr 2013) IGGCAS: Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China (institutional address; updated 16 Oct 2011) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 93, MAPS 43, 571-632 (2008)
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Geography: |
Statistics: This is 1 of 44274 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||
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Revision history: |
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