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LaPaz Icefield 04841
Basic information Name: LaPaz Icefield 04841
     This is an OFFICIAL meteorite name.
Abbreviation: LAP 04841
Observed fall: No
Year found: 2004
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 56 g
Antarctic Meteorite Newsletter:  AMN 29(2)  (2006)  Lunar (basalt)
Meteoritical Bulletin:  MB 92  (2007)  Lunar-basaltic
Recommended:  Lunar (basalt)    [explanation]

This is 1 of 24 approved meteorites classified as Lunar (basalt).   [show all]
Search for other: Lunar meteorites
Comments: Approved 1 Sep 2006
Writeup from AMN 29(2):
Sample No.: LAP 04841
Location: LaPaz Ice Field
Field No.: 17462
Dimensions (cm):   5.0x2.5x2.5
Weight (g): 55.992
Meteorite Type: Lunar-Basalt

Macroscopic Description: Kathleen McBride
Dull, black fusion crust covers over 50% of the exterior. Some surfaces have shiny areas. The interior is a pinkish tan and white matrix with black glass filled veins.

Thin Section (,2) Description: Valerie Reynolds, Tim McCoy and Linda Welzenbach
The meteorite is almost certainly paired with the LAP 02205 pairing group. LAP 02205 was described as follows: The section consists of 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 Fs26-80Wo14-36, plagioclase is An85-90Or0-1 and a single olivine phenocryst is Fa50. The Fe/Mn ratio in the pyroxenes averages ~60. The meteorite is a lunar olivine-bearing basalt.

Thin Section Images

Cross-Polarized Light Plane-Polarized Light
LAP 04841 - Cross-Polarized Light LAP 04841 - Plane-Polarized Light

Lab Images

LAP 04841,0 ,1 ,2

Data from:
  Table 3
  Line 318:
Mass (g):56
Weathering grade:A/B
Ferrosilite (mol%):27-75
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 29(2) (2006), JSC, Houston
Published in Meteoritical Bulletin, no. 92, MAPS 42, 1647-1694 (2007)
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Photographs from AMN:
JSC A photo is in the write-up above


     This is 1 of 43856 approved meteorites from Antarctica (plus 3802 unapproved names)

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