Meteoritical Bulletin: Entry for Grove Mountains 021536

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Grove Mountains 021536

Basic information

Name: Grove Mountains 021536
This is an OFFICIAL meteorite name.
Abbreviation: GRV 021536
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by Chinese Antarctic Research Expedition (CARE)]
Mass: 1.45 g

Classification
history:

Meteoritical Bulletin:	MB 93	(2008)	CM2
Recommended:			CM2 [explanation]

This is 1 of 636 approved meteorites classified as CM2. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites

Comments:

Approved 5 Mar 2008
Revised 4 Aug 2008: final writeup

Writeup

help

Writeup from MB 93:

Grove Mountains 021536 72°57'53''S, 75°12'59''E

Grove Mountains, Antarctica

Find: 14 January 2003

Carbonaceous chondrite (CM2)

History and Physical characteristics: J. Li recovered this stone on blue ice in Grove Mountains, Antarctica. It weighs 1.45 g and has an irregular shape. Part of black fusion crust remains.

Petrography: (A. Zhang, PMO; H. Wang, NU) The meteorite contains chondrules, mineral fragments, CAIs, and fine-grained matrix (~70 vol%). Most chondrules are small (200- 300 µm in diameter) and a few are up to 2 mm. Type I PO chondrules are dominant, and type I PP and type II PO chondrules are less abundant. Mineral fragments are mainly olivine and pyroxene. There are a few Ca-Al-rich inclusions containing spinel and Al-rich diopside. Metallic Fe-Ni and sulfides are rare. Some olivine fragments show chemical zoning.

Mineral compositions and Geochemistry: (A. Zhang, PMO; H. Wang, NU) Minerals in chondrules are olivine (Fa_0.5-43.5, average = Fa_6.7±11.2), and low-Ca pyroxene (Fs_1.0-6.0, average = Fs_{3.04 ± 2.7}; Wo_0.8-7.9, average = Wo_1.77±1.8).

Classification: Carbonaceous chondrite (CM2).

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

Data from:
  MB93
  Table 6
  Line 186:

Date:	14-Jan-2003
Latitude:	72°57'53"S
Longitude:	75°12'59"E
Mass (g):	1.45
Pieces:	1
Class:	CM2
Fayalite (mol%):	0.5-43.5
Ferrosilite (mol%):	1.-6.
Wollastonite (mol%):	0.8-7.9
Classifier:	PMO
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)
PMO: Purple Mountain Observatory, Nanjing, China (institutional address; updated 16 Dec 2011)
NU: School of Earth Sciences and Engineering, Nanjing University, #163 Xianlin Avenue, Nanjing 210023, China, China (institutional address; updated 18 Jul 2015)

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

Antarctica

Coordinates:
Recommended::	(72° 57' 53"S, 75° 12' 59"E)

Statistics:
This is 1 of 44543 approved meteorites from Antarctica (plus 3802 unapproved names)

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Revision
history:

This lists important revisions made to data for this record.

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