Meteoritical Bulletin: Entry for Northwest Africa 13279

MetSoc Home Publications Contacts

Search the Meteoritical Bulletin Database
Last update: 29 Jan 2023
Search for:	Search type:	Search limits:	Display:	Publication:
Names Text Places Classes Years	Contains Starts with Exact Sounds like	NonAntarctic Falls Non-NWAs Has strewnfield		What's new in the last:
Include past classifications in search		Has photo	Limit to approved meteorite names
Search text:

Northwest Africa 13279

Basic information

Name: Northwest Africa 13279
This is an OFFICIAL meteorite name.
Abbreviation: NWA 13279
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass: 6.42 kg

Classification
history:

Recommended:

CV3 [explanation]

This is 1 of 602 approved meteorites (plus 1 unapproved name) classified as CV3. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites

Comments:

Approved 2 May 2020

Writeup

Writeup from MB 109:

Northwest Africa 13279 (NWA 13279)

(Northwest Africa)

Purchased: 2019 Apr

Classification: Carbonaceous chondrite (CV3)

History: Purchased by Mark Lyon in April 2019 from a Moroccan dealer.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Well-formed PO and BO chondrules (apparent diameter 890 ± 400 µm, N = 24) and irregularly-shaped, very fine grained CAI are set in fine grained matrix (~20 vol.%, deep reddish sepia brown in thin section).

Geochemistry: Olivine in chondrules (Fa_11.8±14.2, range Fa_0.4-38.2, N = 7), low-Ca pyroxene (Fs_7.7±6.0Wo_2.2±1.3, range Fs_0.8-12.2Wo_1.0-3.6, N = 3), olivine in matrix (Fa_49.8-53.6, N = 2), diopside (Fs_0.5Wo_43.8; Fs_0.5Wo_49.0; N = 2), plagioclase (An_81.6-88.0Or_0.0, N = 2).

Classification: Carbonaceous chondrite (CV3).

Specimens: 20.9 g including one polished thin section at UWB; 1418 g main mass with Mr. C. Shipbaugh; remainder with Mr. M. Lyon.

Data from:
  MB109
  Table 0
  Line 0:

Place of purchase:	Morocco
Date:	P 2019 Apr
Mass (g):	6418
Pieces:	5
Class:	CV3
Shock stage:	S2
Weathering grade:	low
Fayalite (mol%):	11.8±14.2
Ferrosilite (mol%):	7.7±6.0
Wollastonite (mol%):	2.2±1.3
Classifier:	A. Irving, UWS, and P. Carpenter, WUSTL
Type spec mass (g):	20.9
Type spec location:	UWB
Main mass:	M. Lyon/C. Shipbaugh
Comments:	Work name Lyon19-5; 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, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 109, in preparation (2020)

Find references in NASA ADS:
Find references in Google Scholar:

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

Direct link to this page