MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 4 Dec 2022
Search for: Search type: Search limits: Display: Publication:
Text help
Starts with
Sounds like
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:  
Kumtag 002
Basic information Name: Kumtag 002
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2011
Country: China
Mass:help 557 g
Meteoritical Bulletin:  MB 101  (2012)  L4
Recommended:  L4    [explanation]

This is 1 of 1999 approved meteorites (plus 4 unapproved names) classified as L4.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 18 Nov 2012
Writeup from MB 101:

Kumtag 002        41°30’N, 93°33’E

Xinjiang, China

Found: Nov 2011

Classification: Ordinary chondrite (L4)

History: In November, 2011, a meteorite was found in the Tuzileike Desert when geologist Jianmin Wang was working with the geological survey. Since then Mr. Wang and his colleagues have searched for meteorites in an ~60 km2 area. In 2012, other hunters joined in the search collecting more than 270 kg of meteorites.

Physical characteristics: (B. Miao, H. Chen, Z. Xia, L. Xie, GUT): A 557 g tortoise-shaped stone (10 × 10 × 4 cm), with a flat side. The sample is dark brown and lacks fusion crust.

Petrography: (B. Miao, H. Chen, Z. Xia, L. Xie, GUT): The interior shows chondritic texture and well-developed chondrules, including porphyritic olivine and pyroxene, barred olivine chondrules, and radiating pyroxene types. The matrix is recrystallized. Most metal and troilite grains are weathered. Olivine exhibits undulatory extinction and minerals show irregular fractures.

Geochemistry: Olivine Fa24.3±0.8, n = 36; low-Ca pyroxene Fs20.4±0.7Wo1.1±0.6, n = 31.

Classification: Ordinary chondrite (L4); S2, W3.

Specimens: One 557 g sample, one thin section are on deposited at GUT.

Data from:
  Table 0
  Line 0:
Origin or pseudonym:Desert
Date:Nov 2011
Mass (g):557
Shock stage:S2
Weathering grade:W3
Fayalite (mol%):24.3±0.8 (n = 36)
Ferrosilite (mol%):20.4±0.7 (n = 31)
Wollastonite (mol%):1.1±0.6 (n = 31)
Classifier:B. Miao, H. Chen, Z. Xia, L. Xie, GUT
Type spec mass (g):557
Type spec location:GUT
Main mass:GUT
Finder:Jianmin Wang, Kesi Lei
Comments:Submitted by Bingkui Miao
   and collections
GUT: College of Earth Sciences, Guilin University of Technology, 12 Jiangan Road, Guilin 541004, China (institutional address; updated 18 Oct 2012)
References: Published in Meteoritical Bulletin, no. 101, MAPS 50, 1661, September 2015
Find references in NASA ADS:
Find references in Google Scholar:

     Recommended::   (41° 30'N, 93° 33'E)

     This is 1 of 292 approved meteorites from Xinjiang, China (plus 5 unapproved names)
     This is 1 of 455 approved meteorites from China (plus 10 unapproved names) (plus 1 impact crater)
Proximity search:
Find nearby meteorites: enter search radius (km):

Direct link to this page