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Grove Mountains 050191 | |||||||||||||||||||||||||||||||||||
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Basic information | Name: Grove Mountains 050191 This is an OFFICIAL meteorite name. Abbreviation: GRV 050191 Observed fall: No Year found: 2006 Country: Antarctica [Collected by Chinese Antarctic Research Expedition (CARE)] Mass: 8 g | ||||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 487 approved meteorites classified as LL3. [show all] Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||||||
Comments: | Approved 23 Nov 2021 | ||||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 110:
Grove Mountains 050191 (GRV 050191) 72°58’30.3"S, 75°16’12.6"E Antarctica Find: 7 Jan 2006 Classification: Ordinary chondrite (LL3) History: During 2005/2006 field season, 5354 meteorite samples have been selected by CHINARE in Grove Mountains, East Antarctica. Physical characteristics: This meteorite weighs 8 g, the edges and corners are obvious, has a fusion crust shell. Petrography: The meteorite shows a chondritic texture. The amount of chondrules and their fragments is up to about 75 vol.%. Their sizes vary from 0.1 mm to 2 mm and they are well delineated. They have barred olivine, porphyritic, and cryptocrystalline textures, with annular bands of olivine; most of the mineral annular bands are magnesium-rich in the core. In addition, the crystals of these minerals sometimes show evident zonation. Olivine and low-Ca-pyroxene are the main minerals in fine-grained matrix. All petrographic features indicate a petrological type of 3. Undulatory extinction and irregular fractures in olivine reveal a shock stage of S2. The Fa value indicates that this meteorite belongs to LL group, but the measured amount of metal/sulfide is anomalously high, 18 vol%; certain assignment of group should await further investigation. Geochemistry: Olivine Fa28.16±2.41, range Fa24.28-31.31. Pyroxene Fs6.82±3.66, range Fs1.97-14.04. Specimens: The main mass and one thin section are on deposited at PRIC. | ||||||||||||||||||||||||||||||||||
Data from: MB110 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., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Geography: |
Statistics: This is 1 of 44547 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||||||||||||
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Revision history: |
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