header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 11 Dec 2018
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Years
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:  
Queen Alexandra Range 93069
Basic information Name: Queen Alexandra Range 93069
     This is an OFFICIAL meteorite name.
Abbreviation: QUE 93069
Observed fall: No
Year found: 1993
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 21.4 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 17(2)  (1994)  Lunar (anorthositic breccia)
Meteoritical Bulletin:  MB 79  (1996)  Lunar-anorthositic
NHM Catalogue:  5th Edition  (2000)  Lunar (anorth)
MetBase:  v. 7.1  (2006)  Lunar (anorth)
Recommended:  Lunar (anorth)    [explanation]

This is 1 of 71 approved meteorites classified as Lunar (anorth).   [show all]
Search for other: Lunar meteorites
Writeuphelp
Writeup from AMN 17(2):

Sample No.: QUE93069

Location: Queen Alexandra Range

Dimensions (cm): 5.0 x 2.2 x 2.3

Weight (g): 21.4

Weathering: A/B

Fracturing: B

Meteorite Type: Lunar-anorth. breccia

 

Macroscopic Description: Cecilia Satterwhite and Marilyn Lindstrom

The overall shape of this lunar meteorite is approximately one third of a flat ovoid. Thick gray-green frothy fusion crust covers the top while thin granular medium olive green-brown fusion crust covers the bottom. The north face is a fractured surface with exposed interior matrix and abundant fractures. This surface consists of black matrix with abundant millimeter sized white/ gray clasts. Some clasts have weathered to a yellowish color. One gray clast is visible in a fracture. Cleaving this meteorite revealed a lighter gray matrix with small clasts of various sizes. One white, friable clast (3 x 2 mm) is directly below the fusion crust. An area 2 x 2 mm near this clast has a uniform, dusty-gray appearance with an indistinguish-able border. All of the clasts present are small and friable and unfortunately may not be extractable.

 

Thin Section (.5) Description: Brian Mason

The section shows a microbreccia of small plagioclase grains and granular clasts, up to 0.6 mm across, in a translucent to semi-opaque brown glassy matrix; colorless vesicular fusion crust is present on one edge. There is one large clast, 2.4 x 3.6 mm, of pale brown partly devitrified glass. Traces of metallic iron, as irregular grains up to 40 microns, are present. Microprobe analyses show that the plagioclase is almost pure anorthite (Na2O 0.3-0.4%, K2O less than 0.1%). The composition of the fusion crust, probably a reasonable approximation for the bulk meteorite, is (weight percent): SiO2 44, Al2O3 27, FeO 4.4, MgO 4.5, CaO 16, Na2O 0.32, K2O less than 0.1 %, TiO2 0.24, MnO 0.10. The FeO : MnO ratio is high, 44-75, characteristic of lunar material. The meteorite is an anorthositic microbreccia, presumably of lunar origin. In thin section, it is very similar to MAC 88105 (Antarctic Meteorite Newsletter 12(2), 1989).

Data from:
  MB79
  Table 2
  Line 635:
Origin or pseudonym:Footrot Flats
Mass (g):21.4
Class:Lun-A
Weathering grade:A/B
Comments:NTL=0.0±0.1; 93069 pairing group
Catalogs:
Search for specimens in the Smithsonian Institution collection (U.S.):   
    Require SI photo
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 17(2) (1994), JSC, Houston
Published in Meteoritical Bulletin, no. 79, MAPS 31, A161-A174 (1996)
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Antarctica
Coordinates:
     Catalogue of Meteorites:   (84°S, 168°E)
     Recommended::   (84° 34' 35"S, 162° 33' 57"E)
Note: the NHM and MetBase coordinates are 88.2 km apart

Statistics:
     This is 1 of 38431 approved meteorites from Antarctica (plus 5051 unapproved names)
Proximity search:
Find nearby meteorites: enter search radius (km):

Direct link to this page