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Grove Mountains 022905 | |||||||||||||||||||||||||||||
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Basic information | Name: Grove Mountains 022905 This is an OFFICIAL meteorite name. Abbreviation: GRV 022905 Observed fall: No Year found: 2003 Country: Antarctica [Collected by Chinese Antarctic Research Expedition (CARE)] Mass: 13.1 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 85 approved meteorites (plus 1 unapproved name) classified as Winonaite. [show all] Search for other: Primitive achondrites, Winonaites | ||||||||||||||||||||||||||||
Comments: | Approved 12 Nov 2022 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 111:
Grove Mountains 022905 (GRV 022905) 72°46’30"S, 75°19’01"E Antarctica Find: 22 Jan 2003 Classification: Primitive achondrite (Winonaite) History: Found by CHINARE in 2002 from Grove Mountains, Antarctica. Physical characteristics: Fusion crust residue is noticed on the surface. Petrography (Zhipeng Xia, Bingkui Miao, GUT): The silicate minerals in this meteorite include olivine, low-Ca pyroxene, high-Ca pyroxene, and a small amount of feldspar. Fe-Ni metal is common (estimated about 10 vol%). Highly recrystallized crystalline with triple junctions. Except for feldspar, the size of the silicate mineral is between 40-250 μm, and most of which are about 150 µm. No residual chondrule were observed. Geochemistry (Zhipeng Xia, Bingkui Miao, GUT): olivine: Fa4.8 (Fa4.6-5.0, FeO/MnO=9.1±0.3, n=4); low-Ca pyroxene: Fs4.5±0.2Wo2.9±0.1 (Fs4.3-4.7Wo2.8-3.0, FeO/MnO=5.5±0.2, n=4); High-Ca pyroxene: Fs2.3±0.2Wo41.5±0.5 (Fs2.1-2.5Wo41.0-42.0, n=5); feldspar: An25.5±1.5Ab70.0±1.2Or4.5±0.2, n=4. Classification: Winonaite Specimens: 13.06 g specimen and a polished thin section are deposited in PRIC. | ||||||||||||||||||||||||||||
Data from: MB111 Table 0 Line 0: |
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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) GUT: College of Earth Sciences, Guilin University of Technology, 12 Jiangan Road, Guilin 541004, China (institutional address; updated 18 Oct 2012) |
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Catalogs: |
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References: | Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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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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