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Alatage Mountain 013
Basic information Name: Alatage Mountain 013
     This is an OFFICIAL meteorite name.
Abbreviation: AM 013
Observed fall: No
Year found: 2013
Country: China
Mass:help 93.1 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  L5
Recommended:  L5    [explanation]

This is 1 of 6528 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
Writeuphelp
Writeup from MB 106:

Alatage Mountain 013 (AM 013)        41°41’14.1"N, 92°56’16.8"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: 93.1 g (only 1 piece) no fusion crust, gray surface

Petrography: Consists of olivine, orthopyroxene, and feldspar, associated with comparatively minor amounts of clinopyroxene, Fe-Ni, diopside, troilite, chromite and phosphate. The matrix is fine-grained and feldspar grain size is >2 μm. Many mineral grains are heavily fractured. The wide shock veins (>200 μm) and presence of ringwoodite indicate shock stage S5.

Geochemistry: Minerals are uniform. Olivine: Fa22.9±0.9 (n=7); low-Ca pyroxene: Fs19.8±1.1Wo1.6±0.3 (n=11)

Classification: Ordinary chondrite L5; S5; W2.

Specimens: 3 g sample and one thin section are deposited in GUT; 83 g is deposited at GIGCAS.

Data from:
  MB106
  Table 0
  Line 0:
State/Prov/County:Xinjiang
Origin or pseudonym:Gobi Desert
Date:1 May 2013
Latitude:41°41'14.1"N
Longitude:92°56'16.8"E
Mass (g):93.1
Pieces:1
Class:L5
Shock stage:S5
Weathering grade:W2
Fayalite (mol%):22.6±1.7 (n=9)
Ferrosilite (mol%):18.8±1.0 (n=9)
Wollastonite (mol%):1.7±0.4 (n=9)
Classifier:Z. Xia, B. Miao, H. Chen, GUT
Type spec mass (g):86
Type spec location:GUT, GIGCAS
Main mass:Wenjie Shen in Guangzhou, China
Finder:Bingkui Miao et al.
Comments:Submitted by Zhipeng Xia
Institutions
   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)
Catalogs:
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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Geography:

China
Coordinates:
     Recommended::   (41° 41' 14"N, 92° 56' 17"E)

Statistics:
     This is 1 of 229 approved meteorites from Xinjiang, China (plus 4 unapproved names)
     This is 1 of 366 approved meteorites from China (plus 17 unapproved names) (plus 1 impact crater)
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