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Grove Mountains 020124
Basic information Name: Grove Mountains 020124
     This is an OFFICIAL meteorite name.
Abbreviation: GRV 020124
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by Chinese Antarctic Research Expedition (CARE)]
Mass:help 1.47 g
Classification
  history:
Meteoritical Bulletin:  MB 93  (2008)  Mesosiderite
Recommended:  Mesosiderite    [explanation]

This is 1 of 180 approved meteorites classified as Mesosiderite.   [show all]
Search for other: Mesosiderites, Metal-rich meteorites
Comments: Approved 5 Mar 2008
Revised 4 Aug 2008: final writeup
Writeuphelp
Writeup from MB 93:

Grove Mountains 020124                             72°58'43''N, 75°15'39''E

Grove Mountains, Antarctica

Find: 6 January 2003

Mesosiderite

History and Physical characteristics: The meteorite was found on blue ice west to the middle segment of the Gale Escarpment in Grove Mountains by X. Xu. It has an irregular shape with rough surface, and most of fusion crust has been lost. The meteorite weighs 1.47 g.

Petrography: (G. Wang and D. Wang, GIGGCAS; S. Hu and Y. Lin, IGGCAS) The meteorite contains 14 vol% metal. Silicate fraction consists of large fragments of mainly orthopyroxene, pigeonite, and plagioclase, with less abundant silica and a few olivine grains, and fine-grained matrix. Orthopyroxene fragments usually have bright rims but rare exsolutions. All fragments of pigeonite show exsolution of augite, and normally have rims of the latter. Olivine has rounded shapes. The fine-grained matrix is composed mainly of pyroxenes and plagioclase with minor silica and chromite, showing an ophitic texture.

Mineral compositions and Geochemistry: (S. Wen and L. Xu, IGGCAS; G. Wang, GIGCAS). Orthopyroxene fragments show large variation (Fs23.4-41), with FeO content increasing toward the rims and from grains to grains, FeO/ MnO = 29; lamellae of augite: (Fs16.5-25.6Wo41.8-43.7), pigeonite Fs37.2-54.7Wo2-5), plagioclase (An89-96). Individual fragments of olivine are homogeneous, but vary from grain to grain (Fa =34.2-43.4 mol%); kamacite (Ni = 5.02- 6.27 wt%, Co = 0.66-0.81 [both wt%]); taenite (Ni = 39.4- 40.5 wt%).

Classification: Mesosiderite; extensively weathered.

Type specimens: PRIC holds the main mass and a polished section.

Data from:
  MB93
  Table 6
  Line 103:
Date:6-Jan-2003
Latitude:72°58'43"S
Longitude:75°15'39"E
Mass (g):1.47
Pieces:1
Class:Mesosiderite
Classifier:GIGCAS
Main mass:PRIC
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)
GIGCAS: Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, China (institutional address)
Catalogs:
Search for this meteorite in the Chinese meteorite database (CHINARE):   
References: Published in Meteoritical Bulletin, no. 93, MAPS 43, 571-632 (2008)
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Geography:

Antarctica
Coordinates:
     Recommended::   (72° 58' 43"S, 75° 15' 39"E)

Statistics:
     This is 1 of 38937 approved meteorites from Antarctica (plus 5051 unapproved names)
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