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Grove Mountains 13001 | |||||||||||||||||||||||||||||||||||
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Basic information | Name: Grove Mountains 13001 This is an OFFICIAL meteorite name. Abbreviation: GRV 13001 Observed fall: No Year found: 2014 Country: Antarctica [Collected by Chinese Antarctic Research Expedition (CARE)] Mass: 1299 g | ||||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 598 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||||||||
Comments: | Approved 29 Oct 2014 | ||||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 103:
Grove Mountains 13001 (GRV 13001) 72°59’08"S, 75°14’18"E Antarctica Found: 6 Feb 2014 Classification: HED achondrite (Eucrite) History: One of 583 meteorites collected by CHINARE during the 2013/2014 field season. Physical characteristics: (H. Chen, B. Miao, Z. Xia, L. Xie, GUT): This achondrite is 75% covered with a shiny black fusion crust, with a total mass of 1299.1 g. The interior is a smoky gray color, showing a partially brecciated texture. Many cracks penetrate the interior of this meteorite. Dimensions: 8.5 × 9.6 × 9.0 cm. Petrography: (H. Chen, B. Miao, Z. Xia, L. Xie, GUT): Breccia containing a variety of basaltic lithologies, generally plagioclase-rich, with lath-like plagioclase typically 0.1-0.5 mm long, and some pyroxene laths up to 1.0 mm. A silica phase is commonly present. A macroscopically dark gray, fine-grained clast (mean grain size 20-50 μm) with equilibrated metamorphic texture also contains a silica phase. Accessories are ilmenite, troilite and rare iron metal. Geochemistry: (H. Chen, B. Miao, Z. Xia, L. Xie, GUT): Orthopyroxene compositions are Fs58.6-59.7Wo1.61-4.70, median Fs59.3Wo2.9, n=15. Clinopyroxene compositions are Fs27.0-58.3Wo7.74-60.6, median Fs42.1Wo34.5, n=16. Plagioclase: An92.7-96.1Or0.35-0.96, median An94.9Or0.64, n=8. Bulk analysis of fusion crust by EPMA (wt%): FeO=22.4%, MnO=0.68%, Fe/Mn=32.9. Isotopic data (M.E. Sanborn and Q.-Z. Yin, UCD): oxygen, Δ17O=-0.25±0.02; chromium, εCr=-0.33±0.09. Classification: Based on texture, mineral composition and bulk Fe/Mn this is a eucrite (basaltic polymict eucrite). | ||||||||||||||||||||||||||||||||||
Data from: MB103 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) UCD: University of California Dept Earth and Planetary Sciences 2119 Earth and Physical Sciences One Shields Avenue Davis, CA 95616, United States (institutional address; updated 18 Nov 2014) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
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Geography: |
Statistics: This is 1 of 44400 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||||||||||||
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Revision history: |
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