Meteoritical Bulletin: Entry for Grove Mountains 022905

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Grove Mountains 022905

Basic information

Name: Grove Mountains 022905
This is an OFFICIAL meteorite name.
Abbreviation: GRV 022905
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by Chinese Antarctic Research Expedition (CARE)]
Mass: 13.1 g

Classification
history:

Recommended:

Winonaite [explanation]

This is 1 of 81 approved meteorites (plus 1 unapproved name) classified as Winonaite. [show all]
Search for other: Primitive achondrites, Winonaites

Comments:

Approved 12 Nov 2022

Writeup

help

Writeup from MB 111:

Grove Mountains 022905 (GRV 022905) 72°46’30"S, 75°19’01"E

Antarctica

Find: 22 Jan 2003

Classification: Primitive achondrite (Winonaite)

History: Found by CHINARE in 2002 from Grove Mountains, Antarctica.

Physical characteristics: Fusion crust residue is noticed on the surface.

Petrography (Zhipeng Xia, Bingkui Miao, GUT): The silicate minerals in this meteorite include olivine, low-Ca pyroxene, high-Ca pyroxene, and a small amount of feldspar. Fe-Ni metal is common (estimated about 10 vol%). Highly recrystallized crystalline with triple junctions. Except for feldspar, the size of the silicate mineral is between 40-250 μm, and most of which are about 150 µm. No residual chondrule were observed.

Geochemistry (Zhipeng Xia, Bingkui Miao, GUT): olivine: Fa_4.8(Fa_4.6-5.0, FeO/MnO=9.1±0.3, n=4); low-Ca pyroxene: Fs_4.5±0.2Wo_2.9±0.1(Fs_4.3-4.7Wo_2.8-3.0, FeO/MnO=5.5±0.2, n=4); High-Ca pyroxene: Fs_2.3±0.2Wo_41.5±0.5(Fs_2.1-2.5Wo_41.0-42.0, n=5); feldspar: An_25.5±1.5Ab_70.0±1.2Or_4.5±0.2, n=4.

Classification: Winonaite

Specimens: 13.06 g specimen and a polished thin section are deposited in PRIC.

Data from:
  MB111
  Table 0
  Line 0:

Date:	22 Jan 2003
Latitude:	72°46'30"S
Longitude:	75°19'01"E
Mass (g):	13.06
Pieces:	1
Class:	Winonaite
Shock stage:	S2
Weathering grade:	W2
Classifier:	Z. Xia, B. Miao, GUT
Type spec mass (g):	13.06
Type spec location:	PRIC
Main mass:	PRIC
Finder:	CHINARE
Comments:	Submitted by Bingkui 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)

Find references in NASA ADS:
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Photos:

Credit	Photos
Public domain photographs:
Bingkui Miao; Zhipeng Xia

Geography:

Antarctica

Antarctica

Coordinates:
Recommended::	(72° 46' 30"S, 75° 19' 1"E)

Statistics:
This is 1 of 43857 approved meteorites from Antarctica (plus 3802 unapproved names)

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