Meteoritical Bulletin: Entry for Northwest Africa 11436

header

MetSoc Home Publications Contacts

Search the Meteoritical Bulletin Database
Last update: 6 Aug 2022
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 11436

Basic information

Name: Northwest Africa 11436
This is an OFFICIAL meteorite name.
Abbreviation: NWA 11436
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass: 1037 g

Classification
history:

Meteoritical Bulletin:	MB 106	(2018)	R3-6
Recommended:			R3-6 [explanation]

This is 1 of 30 approved meteorites classified as R3-6. [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3)

Comments:

Approved 13 Oct 2017

Writeup

help

Writeup from MB 106:

Northwest Africa 11436 (NWA 11436)

(Northwest Africa)

Purchased: 2017 July

Classification: Rumuruti chondrite (R3-6)

Petrography: (K. Metzler, IfP) Chondritic breccia, consisting of light and dark chondritic clasts, embedded in a matrix of isolated chondrules and chondritic debris. Most dark clasts represent chondritic lithologies of type 3, but some shock-darkened chondritic clasts also occur. Light clasts are strongly metamorphosed and belong to the petrologic type 6.

Geochemistry: Mineral compositions and geochemistry: Clasts of petrologic type 3: mean olivine composition Fa_25.5±15.3(0.4-50.0); n=20; mean low-Ca pyroxene composition Fs_7.4±5.5(1.1-17.8), Wo_1.1±0.9(0.1-3.4), n=15. Clasts of petrologic type 6: mean olivine composition Fa_38.9±0.5(38.0-39.7); n=11; mean pyroxene composition Fs_11.7±0.5(10.9-12.4), Wo_44.4±0.7(43.4-45.6), n=9. Accessories are pentlandite and chromite; no metal was found.

Classification: R chondrite based on mineral chemistry. Genomict breccia, consisting of clasts of petrologic type 3 (unequilibrated olivine and pyroxene) and type 6 (equilibrated olivine and pyroxene; plagioclase grains >50 µm)

Data from:
  MB106
  Table 0
  Line 0:

Place of purchase:	Morocco
Date:	P 2017 July
Mass (g):	1037
Pieces:	1
Class:	R3-6
Shock stage:	S3
Weathering grade:	low
Fayalite (mol%):	25.5; 38.9
Ferrosilite (mol%):	7.4; 11.7
Wollastonite (mol%):	1.1; 44.4
Classifier:	K. Metzler, IfP
Type spec mass (g):	20
Type spec location:	IfP
Main mass:	Mirko Graul, Bernau, Germany
Comments:	Submitted by K. Metzler, IfP

Institutions
and collections

IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)

Catalogs:

References:

Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.

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

Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Stelvino

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 8559 approved meteorites from (Northwest Africa) (plus 1896 unapproved names)

Direct link to this page