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LaPaz Icefield 02224
Basic information Name: LaPaz Icefield 02224
     This is an OFFICIAL meteorite name.
Abbreviation: LAP 02224
Observed fall: No
Year found: 2002
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 253 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 27(1)  (2004)  Lunar (basalt)
Meteoritical Bulletin:  MB 88  (2004)  Lunar-basaltic
MetBase:  v. 7.1  (2006)  Lunar (basalt)
Recommended:  Lunar (basalt)    [explanation]

This is 1 of 18 approved meteorites classified as Lunar (basalt).   [show all]
Search for other: Lunar meteorites
Writeuphelp
Writeup from AMN 27(1):
Sample No.: LAP 02224; LAP 02226; LAP 02436
Location: LaPaz Icefield
Field No.: 15406; 15447; 15412
Dimensions (cm):   5.0x5.0x4.0
6.0x6.0x3.5
5.5x4.25x2.25
Weight (g): 252.5; 244.1; 58.970
Meteorite Type: Lunar Basalt
LAP02224 LAP02226
LAP02436 LAP02436

Macroscopic Description: Kathleen McBride
50-90% of these lunar meteorite exteriors are covered with shiny, black, striated fusion crust. The interior has a granular texture with interconnected linear mineral grains, black, white and brown in color. There are criss-crossing fractures that are filled with black glass.

Thin Sections (,4; ,6; ,4) Description: Tim McCoy, Linda Welzenbach
These sections consist of a coarse-grained unbrecciated basalt with elongate pyroxene (up to 0.5 mm) and plagioclase laths (up to 1 mm) (~60:40 px:plag), rare phenocrysts of olivine (up to 1 mm) and interstitial oxides and late-stage mesostasis. Shock effects include undulatory extinction in pyroxene and shock melt veins and pockets. Microprobe analyses reveal pigeonite to augite of Fs20-80Wo10-36, plagioclase is An85-90Or0-1 and a single olivine phenocryst is Fa35. The Fe/Mn ratio in the pyroxenes averages ~60. The meteorites are lunar olivine-bearing basalt. These are almost certainly paired with LAP 02205.

LAP 02224 - Cross-Polarized Light LAP 02224 - Plane-Polarized Light LAP 02224 - Cross-Polarized Light LAP 02224 - Plane-Polarized Light
LAP 02224
Cross-Polarized Light
LAP 02224
Plane-Polarized Light
LAP 02224
Cross-Polarized Light
LAP 02224
Plane-Polarized Light
LAP 02226 - Cross-Polarized Light LAP 02226 - Plane-Polarized Light LAP 02226 - Cross-Polarized Light LAP 02226 - Plane-Polarized Light
LAP 02226
Cross-Polarized Light
LAP 02226
Plane-Polarized Light
LAP 02226
Cross-Polarized Light
LAP 02226
Plane-Polarized Light
LAP 02436 - Cross-Polarized Light LAP 02436 - Plane-Polarized Light LAP 02436 - Cross-Polarized Light LAP 02436 - Plane-Polarized Light
LAP 02436
Cross-Polarized Light
LAP 02436
Plane-Polarized Light
LAP 02436
Cross-Polarized Light
LAP 02436
Plane-Polarized Light
Data from:
  MB88
  Table A1
  Line 14:
Mass (g):252.5
Class:Lunar-B
Weathering grade:A
Ferrosilite (mol%):23-88
Catalogs:
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 27(1) (2004), JSC, Houston
Published in Meteoritical Bulletin, no. 88, MAPS 39, A215-A272 (2004)
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Photos:
CreditPhotos
Photographs from AMN:
Photograph from unknown source A photo is in the write-up above
Photos from the Encyclopedia of Meteorites:
Dr Carlton Allen, JSC-KT, NASA         
Geography:

Antarctica
Coordinates:
     Recommended::   (86° 22'S, 70° 0'W)

Statistics:
     This is 1 of 36654 approved meteorites from Antarctica (plus 5519 unapproved names)
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