Meteoritical Bulletin: Entry for Grove Mountains 055364

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Grove Mountains 055364

Basic information

Name: Grove Mountains 055364
This is an OFFICIAL meteorite name.
Abbreviation: GRV 055364
Observed fall: No
Year found: 2006
Country: Antarctica [Collected by Chinese Antarctic Research Expedition (CARE)]
Mass: 396 g

Classification
history:

Meteoritical Bulletin:	MB 92	(2007)	Mesosiderite
Recommended:			Mesosiderite [explanation]

This is 1 of 273 approved meteorites classified as Mesosiderite. [show all]
Search for other: Mesosiderites, Metal-rich meteorites

Comments:

Approved 25 Jul 2007

Writeup

help

Writeup from MB 92:

GRV 055364 72°59'36"N, 75°13'6"E

Grove Mountains, Antarctica

Find: 9 January 2006

Mesosiderite

History: X. Chen recovered the meteorite in a large moraine west of the middle of the Gale Escarpment in Grove Mountains.

Physical characteristics: A 396.4 g meteorite with a round shape and many concaved areas. Part of the black fusion crust remains.

Petrography: (Y. Lin, B. Miao, S. Hu and L. Feng, IGGCAS). It contains 23.9 vol% metallic Fe-Ni. The silicate part consists mainly of low-Ca pyroxene (61.8 vol%), plagioclase (32.3 vol%) and silica (5.9 vol%), with minor olivine, chromite and phosphates. Olivine occurs as clasts with embayed outlines and is surrounded by layers of low-Ca pyroxene and fine-grained chromite. Low-Ca pyroxene grains are nearly homogeneous, without exsolved lamellae of Ca-pyroxene. Phosphates commonly occur along the boundaries of Fe, Ni-rich metal with minor schreibersite.

Mineral compositions and geochemistry: Olivine (Fa_27.9_±_3.1; FeO/MnO = 37±3), low Ca-pyroxene (Fs_29.5_±_3.8; FeO/MnO = 22±2) and plagioclase (An_88.7-90.3Ab_9.0-11.1).

Classification: Mesosiderite; minimal weathering.

Type specimens: The entire sample is on deposit at PRIC.

Data from:
  MB92
  Table 5
  Line 2:

Date:	9-Jan-2006
Latitude:	72°59'36"S
Longitude:	75°13'6"E
Mass (g):	396.4
Pieces:	1
Class:	Mes

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)

Catalogs:

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References:

Published in Meteoritical Bulletin, no. 92, MAPS 42, 1647-1694 (2007)

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Geography:

Antarctica

Antarctica

Coordinates:
Recommended::	(72° 59' 36"S, 75° 13' 6"E)

Statistics:
This is 1 of 44547 approved meteorites from Antarctica (plus 3802 unapproved names)

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Revision
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