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Northwest Africa 3127
Basic information Name: Northwest Africa 3127
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 3127
Observed fall: No
Year found: 2001
Country: Morocco
Mass:help 487 g
Classification
  history:
Meteoritical Bulletin:  MB 89  (2005)  LL3.1
MetBase:  v. 7.1  (2006)  LL3.1
Recommended:  LL3.10    [explanation]

This is 1 of 5 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: Revised 1 Sep 2007: Reclassified by Grossman and Brearley (2005)
Writeuphelp
Writeup from MB 89:

Northwest Africa 3127

Northwest Africa

Found 2002

Ordinary chondrite (LL3.1)

A 487 g stone was purchased in Safsaf, Morocco in October 2002. Description and classification (T. Bunch and J. Wittke, NAU; J. Grossman, USGS, Reston): polymict chondritic breccia; host is LL3.1 with xenoliths of LL4 and LL5. Chondrules are very similar to the LL3.0 Semarkona and LL3.1 NWA 1756 chondrites in terms of phase and mesostasis compositions, zoning profiles, and textures. FeO contents in 65 type II chondrule olivine cores range from 7.0 to 26.8 wt. % and corresponding CaO from 0.06 to 0.20 wt.%, which are consistent with an LL3.0–3.2 classification (Jones, 1990); Cr2O3 contents in these olivines, which is considered to be a more sensitive indicator of petrologic subtype (Grossman and Brearley, 2005), range from 0.08 wt. % to 0.58 wt. % with an average of 0.38 wt. %, consistent with an LL3.1 classification, Chondrule mesostasis is optically isotropic and SEM images show little evidence for metamorphic crystallization of mesostasis glass.  Shock level, S2; weathering grade is W3. Specimens: 20.1 g, NAU; main mass xHupé.

Data from:
  MB89
  Table 7
  Line 468:
Origin or pseudonym:Morocco
Date:2001
Mass (g):487
Pieces:1
Class:LL3.1
Shock stage:S2
Weathering grade:W3
Classifier:
Type spec mass (g):21
Institutions
   and collections
NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012)
USGS: US Geological Survey, 954 National Center, Reston, VA 20192, United States (institutional address)
xHupé: (old address—now see GHupé or AHupé) G. and A. Hupe, 2616 Lake Youngs Court SE, Renton, WA 98058., United States (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Don Edwards   
Meteorites Australia   
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Alessandro Takeda   
David Hardy   
jean bernard Delbauve   
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1322 approved meteorites from Morocco (plus 14 unapproved names) (plus 1 impact crater)

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