Meteoritical Bulletin: Entry for Grove Mountains 090312

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Grove Mountains 090312

Basic information

Name: Grove Mountains 090312
This is an OFFICIAL meteorite name.
Abbreviation: GRV 090312
Observed fall: No
Year found: 2010
Country: Antarctica [Collected by Chinese Antarctic Research Expedition (CARE)]
Mass: 13.3 g

Classification
history:

Meteoritical Bulletin:	MB 102	(2013)	Ureilite
Recommended:			Ureilite [explanation]

This is 1 of 660 approved meteorites classified as Ureilite. [show all]
Search for other: Achondrites, Ureilites

Comments:

Approved 1 May 2013

Writeup

help

Writeup from MB 102:

Grove Mountains 090312 (GRV 090312) 72°56’4.2"S, 75°19’1.3"E

Antarctica

Found: 2010 Jan 14

Classification: Ureilite

History: One of 1618 meteorite samples collected by CHINARE in the Grove Mountains, East Antarctica, during the 2009-2010 field season.

Physical characteristics (B. Miao, H. Chen, Z. Xia, L. Xie, J. Yao, GUT): A 13.3 g stone has a roundish shape, 3.1x2.2x2.0 cm in size. Its part surface is covered by black fusion crust.

Petrography (B. Miao, H. Chen, Z. Xia, L. Xie, J. Yao, GUT): It consists of coarse-grained olivine, pigeonite and carbon polymorphs. And it shows a typical ureilitic texture, including triple junctions among olivine and pigeonite, microns diamond grains, and reduced zonation of olivine.

Geochemistry (B. Miao, H. Chen, Z. Xia, L. Xie, J. Yao, GUT): Olivine, Fa_22.0±0.4(n = 12), Cr₂O₃ 0.56 - 1.66 wt%, CaO 0.18 - 0.25 wt%; pigeonite, Fs_19.7±0.4Wo_4.3±1.1(n = 13), Cr₂O₃ 1.14 - 2.41 wt%.

Classification: Ureilite (monomict)

Specimens: The main mass and one thin section are on deposited at PRIC.

Data from:
  MB102
  Table 0
  Line 0:

Origin or pseudonym:	Ice Field
Date:	2010 Jan 14
Latitude:	72°56'4.2"S
Longitude:	75°19'1.3"E
Mass (g):	13.30
Pieces:	1
Class:	Ureilite
Shock stage:	S2
Weathering grade:	W2
Fayalite (mol%):	22.0±0.4 (n = 12)
Ferrosilite (mol%):	19.7±0.4 (n = 13)
Wollastonite (mol%):	4.3±1.1 (n = 13)
Classifier:	B. Miao, H. Chen, Z. Xia, L. Xie, J. Yao, GUT
Type spec mass (g):	13.3
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:

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References:

Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015

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Geography:

Antarctica

Antarctica

Coordinates:
Recommended::	(72° 56' 4"S, 75° 19' 1"E)

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

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Revision
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