header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 12 Mar 2024
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Years
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:
 
Northwest Africa 13983
Basic information Name: Northwest Africa 13983
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13983
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 1500 g
Classification
  history:
Meteoritical Bulletin:  MB 110  (2022)  Diogenite-pm
Recommended:  Diogenite-pm    [explanation]

This is 1 of 60 approved meteorites classified as Diogenite-pm.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 18 Jun 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 13983 (NWA 13983)

(Northwest Africa)

Purchased: 2020 Feb

Classification: HED achondrite (Diogenite, polymict)

History: Purchased by Ziyao Wang in February 2020 from a dealer in Algiers, Algeria.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Breccia composed predominantly of angular grains of compositionally-zoned diogenitic orthopyroxene plus minor anorthitic plagioclase, eucritic exsolved pigeonite and rare silica polymorph, together with sparse lithic clasts of diogenite (some plagioclase bearing) and fine-grained ophitic eucrite, set in a matrix containing kamacite, taenite, troilite, low-Ti chromite and ilmenite. Some orthopyroxene contains sparse thin exsolution lamellae of augite. The proportion of eucritic material is estimated to be only 1-2 vol.%.

Geochemistry: Diogenitic orthopyroxene (cores Fs21.3-25.1Wo1.9-4.1, FeO/MnO = 28-32, N = 4; rims Fs36.1-39.6Wo1.9-3.2, FeO/MnO = 31-32, N = 3), augite (Fs16.0±0.0Wo44.1-44.2, FeO/MnO = 23-27, N = 2), eucritic low-Ca pyroxene host (Fs53.9-55.7Wo1.6-4.5, FeO/MnO = 28-29, N = 2), augite exsolution lamella (Fs23.6Wo42.6, FeO/MnO 25), plagioclase (An87.5-93.4Or0.5-0.3, N = 3).

Classification: Diogenite (polymict breccia).

Specimens: 25.0 g including one polished thin section at UWB; remainder with WangZ.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Algiers
Date:P 2020 Feb
Mass (g):1500
Pieces:1
Class:Diogenite-pm
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):21.3-25.1; 36.1-30.6; 53.9-55.7; 16.0-23.6
Wollastonite (mol%):1.9-4.1; 1.9-2.6; 1.6-4.5; 42.6-44.2
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):25.0
Type spec location:UWB
Main mass:WangZ
Comments:Work name WZY-17; submitted by A. Irving
Institutions
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
WangZ: Ziyao Wang, Hebei GEO University North Campus, Huai An dong road 127, Shijiazhuang, Hebei Province , China (private address; updated 25 Jun 2021)
Catalogs:
References: Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Chunliang Zhang            
Qi Lv            
Ziyao Wang               
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9589 approved meteorites from (Northwest Africa) (plus 1869 unapproved names)
Also see:
  This lists the most popular meteorites among people who looked up this meteorite.
Revision
  history:
  This lists important revisions made to data for this record.

Direct link to this page