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Grove Mountains 150277
Basic information Name: Grove Mountains 150277
     This is an OFFICIAL meteorite name.
Abbreviation: GRV 150277
Observed fall: No
Year found: 2016
Country: Antarctica [Collected by Chinese Antarctic Research Expedition (CARE)]
Mass:help 3.04 g
Classification
  history:
Recommended:  Howardite    [explanation]

This is 1 of 427 approved meteorites classified as Howardite.   [show all]
Search for other: Achondrites, HED achondrites, and Howardites
Comments: Approved 1 Oct 2022
Writeuphelp
Writeup from MB 111:

Grove Mountains 150277 (GRV 150277)        72.935278°S, 75.28472°E

Antarctica, Antarctica

Find: 1 Jan 2016

Classification: HED achondrite (Howardite)

History: Found by CHINARE in 2016 from Grove Mountains, Antarctica.

Physical characteristics: Black fusion crust residue covers ~10% of the surface.

Petrography (Bing-kui Miao, Chuantong Zhang, GUT): This meteorite shows brecciated structure, with clasts or debris of various sizes packed in fine-grained matrix. And a fusion crust can be seen at the section edge, which is rich in spherical bubbles. Many species of minerals have been found in the polished thin section. The major minerals are low-Ca pyroxene, and minor minerals are high-Ca pyroxene, plagioclase and silica. In addition, a small amount of chromite, ilmenite and Fe-Ni metals were also found. Finally, this meteorite is rich in various types of clasts, some with diogenite composition, cumulate class with eucrite composition, and basaltic clast with eucrite composition (~ 50:14:36).

Geochemistry (Bing-kui Miao, Chuantong Zhang, GUT, EPMA): Low-Ca pyroxene(n=22): Fe/Mn=28.8±1.6, Mg#=58.9±17.4; Fs40.2±16.9Wo1.9±2.6En57.9±17.5. Plagioclase(n=9): An90.3±3.7Or0.4±0.3Ab9.3±3.5. Diogenitic clasts usually have Mg# values more than 65 mol.%, and basaltic eucritic clasts have Mg# values less than 45 mol.%. The Mg# values of cumulate eucritic clasts are in between the previous two clasts. Classification: This meteorite is composed of nearly equal proportions of diogenitic and eucritic clasts, thus based on texture and mineral composition, it is a howardite.

Classification: Howardite

Specimens: 3.04 g specimen and a polished thin section are deposited in PRIC.

Data from:
  MB111
  Table 0
  Line 0:
State/Prov/County:Antarctica
Date:1 Jan 2016
Latitude:72.935278°S
Longitude:75.28472°E
Mass (g):3.04
Pieces:1
Class:Howardite
Classifier:B. Miao, C. Zhang, GUT
Type spec mass (g):3.04
Type spec location:GUT
Main mass:PRIC
Finder:CHINARE
Comments:Submitted by Bing-kui Miao
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)
Catalogs:
Search for this meteorite in the Chinese meteorite database (CHINARE):   
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
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Photos:
CreditPhotos
Public domain photographs:
Bingkui Miao; Zhipeng Xia         
Geography:

Antarctica
Coordinates:
     Recommended::   (72° 56' 7"S, 75° 17' 5"E)

Statistics:
     This is 1 of 7 approved meteorites from Antarctica, Antarctica
     This is 1 of 43699 approved meteorites from Antarctica (plus 3802 unapproved names)
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