Meteoritical Bulletin: Entry for Northwest Africa 7029

header

MetSoc Home Publications Contacts

Search the Meteoritical Bulletin Database
Last update: 15 Apr 2024
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 7029

Basic information

Name: Northwest Africa 7029
This is an OFFICIAL meteorite name.
Abbreviation: NWA 7029
Observed fall: No
Year found: 2009
Country: Morocco
Mass: 206 g

Classification
history:

Meteoritical Bulletin:	MB 102	(2013)	LL3.10
Recommended:			LL3.10 [explanation]

This is 1 of 8 approved meteorites classified as LL3.10. [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Approved 16 Dec 2013

Writeup

help

Writeup from MB 102:

Northwest Africa 7029 (NWA 7029)

Morocco

Purchased: 2009

Classification: Ordinary chondrite (LL3.10)

History: Purchased by Blaine Reed in Denver, 2009.

Physical characteristics: Single stone, weathered exterior, saw cut surface reveals numerous densely packed chondrules (200-4000 μm) set in a dark brown matrix.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows numerous porphyritic chondrules with igneous zoned olivines and pyroxenes, also BO and cryptocrystalline chondrules, opaque matrix present. Troilite, kamacite, taenite, Cl-rich apatite.

Geochemistry: (C. Agee and N. Muttik, UNM) Olivine range Fa_1.0-34.0; mean values for ferroan olivine Fa_17.5±9.8, Fe/Mn=45±22, Cr₂O₃=0.24±0.19, n=26; low-Ca pyroxene Fs_13.4±11.2Wo_2.1±3.4, Fe/Mn=19±9, n=19, high-Ca pyroxene Fs_4.3Wo_33.0, n=1.

Classification: Ordinary chondrite (LL3.10), type 3.10 based on mean value and sigma of Cr₂O₃ in ferroan olivine after the method of Grossman and Brearley (2005).

Specimens: 20.6 g including a probe mount on deposit at UNM, 22.6 g at PSF, Reed holds the main mass.

Bibliography:

Grossman J.N. and Brearley A.J. (2005) The onset of metamorphism in ordinary and carbonaceous chondrites. Meteorit. Planet. Sci. 40, 87-122. (link)

Data from:
  MB102
  Table 0
  Line 0:

Place of purchase:	Denver
Date:	P 2009
Mass (g):	205.6
Pieces:	1
Class:	LL3.10
Fayalite (mol%):	17.5±9.8
Ferrosilite (mol%):	13.4±11.2
Wollastonite (mol%):	2.1±3.4
Classifier:	C. Agee, UNM
Type spec mass (g):	20.6 ; 22.6
Type spec location:	UNM ; PSF
Main mass:	Blaine Reed
Comments:	Submitted by C. Agee

Institutions
and collections

PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)
Reed: Blaine Reed, P.O. Box 1141, Delta, CO 81416, United States; Website (private address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015

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

Geography:

Morocco

Morocco

Coordinates:

Unknown.

Statistics:
This is 1 of 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)

Crosslinks:

This lists all records that are linked to this record and to each other.

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