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LaPaz Icefield 031316
Basic information Name: LaPaz Icefield 031316
     This is an OFFICIAL meteorite name.
Abbreviation: LAP 031316
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 25.8 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 29(2)  (2006)  Eucrite-br
Meteoritical Bulletin:  MB 92  (2007)  Eucrite-br
Recommended:  Eucrite-br    [explanation]

This is 1 of 164 approved meteorites classified as Eucrite-br.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 1 Sep 2006
Writeuphelp
Writeup from AMN 29(2):
Sample No.: LAP 031316
Location: LaPaz Ice Field
Field No.: 16711
Dimensions (cm):   3.5x2.5x2.0
Weight (g): 25.819
Meteorite Type: Eucrite (Brecciated)


Macroscopic Description: Kathleen McBride
A small patch of thick black fusion crust is visible on the exterior surface. The interior is gray with glass vein (?). Some areas are vesicular and others are white and powdery.


Thin Section (,2) Description: Tim McCoy and Valerie Reynolds
This meteorite consists of a highly-shocked clastic matrix of pyroxene and plagioclase up to 1 mm. Both pyroxene and plagioclase are mosaicized. Pyroxene exhibits a range of compositions (Fs27-61Wo2-44) reflecting exsolution of augite and orthopyroxene. The Fe/Mn ratio is ~28. Plagioclase is An80-90. The meteorite is a brecciated eucrite.



Thin Section Images

Cross-Polarized LightCross-Polarized LightPlane-Polarized Light
LAP 031316 - Cross-Polarized Light LAP 031316 - Cross-Polarized Light LAP 031316 - Plane-Polarized Light



Lab Images

LAP 031316 Image

Data from:
  MB92
  Table 3
  Line 449:
Mass (g):25.8
Class:Euc-brecciated
Weathering grade:B
Ferrosilite (mol%):27-84
Catalogs:
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)
Find references in NASA ADS:
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Photos:
CreditPhotos
Photographs from AMN:
JSC A photo is in the write-up above
Geography:

Antarctica
Coordinates:Unknown.

Statistics:
     This is 1 of 39173 approved meteorites from Antarctica (plus 5051 unapproved names)

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