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Alatage Mountain 037
Basic information Name: Alatage Mountain 037
     This is an OFFICIAL meteorite name.
Abbreviation: AM 037
Observed fall: No
Year found: 2013
Country: China
Mass:help 18.9 g
Meteoritical Bulletin:  MB 106  (2018)  L5
Recommended:  L5    [explanation]

This is 1 of 8501 approved meteorites (plus 4 unapproved names) classified as L5.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 1 Apr 2017
Writeup from MB 106:

Alatage Mountain 037 (AM 037)        41°41’17.0"N, 92°56’50.1"E

Xinjiang, China

Find: 1 May 2013

Classification: Ordinary chondrite (L5)

History: An expedition found 42 meteorites between 30 April and 1 May 2013 in a 2.7 × 1.4 km area 80 km east of Alatage Mountain. The expedition included Bingkui Miao, Yangting Lin, Shijie Li, Deqiu Dai, Wenjie Shen, Sen Hu, Lei Kesi, Peng Wang, and Zhipeng Xia.

Physical characteristics: Total mass: 18.9 g (only 1 piece) no fusion crust, gray surface

Petrography: The meteorite consists of olivine, orthopyroxene, and feldspar, associated with comparatively minor amounts of clinopyroxene, Fe-Ni, diopside, troilite, chromite and phosphate. In this section, the sample shows a recrystallization texture. More than 40% metal and sulfide are oxidated.

Geochemistry: Minerals are uniform. Olivine: Fa24.1±1.2 (n=7); low-Ca pyroxene: Fs18.8±2.0Wo3.1±2.0 (n=12)

Classification: Ordinary chondrite (L5); S5; W2

Specimens: 3 g sample and one thin section are deposited in GUT; 14 g deposited at GIGCAS.

Data from:
  Table 0
  Line 0:
Origin or pseudonym:Gobi Desert
Date:1 May 2013
Mass (g):18.9
Shock stage:S5
Weathering grade:W2
Fayalite (mol%):24.1±1.2 (n=7)
Ferrosilite (mol%):18.8±2.0 (n=12)
Wollastonite (mol%):3.1±2.0 (n=12)
Classifier:Z. Xia, B. Miao, H. Chen, GUT
Type spec mass (g):17
Type spec location:GUT, GIGCAS
Main mass:Shijie Li in Guiyang, Guizhou, China
Finder:Bingkui Miao et al.
Comments:Submitted by Zhipeng Xia
   and collections
GUT: College of Earth Sciences, Guilin University of Technology, 12 Jiangan Road, Guilin 541004, China (institutional address; updated 18 Oct 2012)
GIGCAS: Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, China (institutional address)
References: Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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     Recommended::   (41° 41' 17"N, 92° 56' 50"E)

     This is 1 of 293 approved meteorites from Xinjiang, China (plus 5 unapproved names)
     This is 1 of 457 approved meteorites from China (plus 10 unapproved names) (plus 1 impact crater)
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