Meteoritical Bulletin: Entry for Northwest Africa 3156

header

MetSoc Home Publications Contacts

Search the Meteoritical Bulletin Database
Last update: 3 Jun 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 3156

Basic information

Name: Northwest Africa 3156
This is an OFFICIAL meteorite name.
Abbreviation: NWA 3156
Observed fall: No
Year found: 2004
Country: (Northwest Africa)
Mass: 138 g

Classification
history:

Meteoritical Bulletin:	MB 91	(2007)	Ureilite
Recommended:			Ureilite [explanation]

This is 1 of 630 approved meteorites classified as Ureilite. [show all]
Search for other: Achondrites, Ureilites

Comments:

Approved 1 Sep 2006

Writeup

help

Writeup from MB 91:

Northwest Africa 3156

Morocco

Find: 2004

Achondrite (ureilite)

History: Purchased in August 2004 by Greg Hupé from a Moroccan dealer in Tagounite.

Physical characteristics: A complete stone with thin fusion crust weighing 138 g.

Petrography: (A. Irving and S. Kuehner, UWS) Larger grains of pigeonite and olivine with reduced rims in a dominant matrix pigeonite, augite, orthopyroxene, sparse olivine, troilite, and kamacite. Geochemistry: pigeonite (Fs_{18.4– 18.6}Wo_5.9–6.0; FeO/MnO = 27.8–33.3; Cr₂O₃ = 1.08–1.11 wt%), olivine (Fa_6.7–7.1; FeO/MnO = 13.2–14.0, Cr₂O₃ = 0.55, CaO = 0.25 [all as wt%]). Oxygen isotopes: (D. Rumble, CIW) Analyses of two acid-washed whole rock fragments by laser fluorination gave, respectively, δ¹⁸O = 7.69, 7.76; δ¹⁷O = 3.24, 3.32; Δ¹⁷O = −0.798, −0.763 (all ‰).

Classification: Achondrite (ureilite).

Type specimen: A total of 20 g of sample and one polished thin section are on deposit at UWS. G. Hupé holds the main mass.

Data from:
  MB91
  Table 2
  Line 151:

Place of purchase:	Tagounite, Morocco
Date:	2004 Aug
Mass (g):	138
Pieces:	1
Class:	Ure
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	20
Type spec location:	UWS
Main mass:	G. Hupé

Plots:

O isotopes:

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)
CIW: Carnegie Insitution Washington, Geophysical Laboratory, 5251 Broad Branch Rd., NW, Washington DC 20015, United States (institutional address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 91, MAPS 42, 413-466 (2007)

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

Photos:

Credit	Photos
Photos from the Encyclopedia of Meteorites:
Don Edwards
The Hupe Collection

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9116 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

Direct link to this page