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LaPaz Icefield 031220
Basic information Name: LaPaz Icefield 031220
     This is an OFFICIAL meteorite name.
Abbreviation: LAP 031220
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 3.1 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 29(2)  (2006)  EH4
Meteoritical Bulletin:  MB 92  (2007)  EH4
Recommended:  EH4    [explanation]

This is 1 of 21 approved meteorites classified as EH4.   [show all]
Search for other: EH chondrites, Enstatite chondrites, Enstatite chondrites (type 4-7), and Enstatite-rich meteorites
Comments: Approved 1 Sep 2006
Writeuphelp
Writeup from AMN 29(2):
Sample No.: LAP 031220
Location: LaPaz Ice Field
Field No.: 16044
Dimensions (cm):   2.25x1.25x0.75
Weight (g): 3.098
Meteorite Type: EH4 Chondrite


Macroscopic Description: Kathleen McBride
60% of the exterior has brown/black fusion crust. The interior black matrix is very rusty with minor metal and a rough texture.


Thin Section (,2) Description: Tim McCoy
The section shows an aggregate of chondrules (up to 1 mm), chondrule fragments, and pyroxene grains in a matrix of about 30% metal and sulfide. It has about 1.4 wt.% Si in the metal. Pyroxene is Fs0-2. The meteorite is an EH4 chondrite.



Thin Section Images

Cross-Polarized LightCross-Polarized LightPlane-Polarized Light
LAP 031220 - Cross-Polarized Light LAP 031220 - Cross-Polarized Light LAP 031220 - Plane-Polarized Light
Plane-Polarized LightReflected Light
LAP 031220 - Plane-Polarized Light LAP 031220 - Reflected Light



Lab Images

LAP 031220 Image North

Data from:
  MB92
  Table 3
  Line 378:
Mass (g):3.1
Class:EH4
Weathering grade:C
Ferrosilite (mol%):0-2
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:
Find references in Google Scholar:
Photos:
CreditPhotos
Photographs from AMN:
JSC A photo is in the write-up above
Geography:

Antarctica
Coordinates:Unknown.

Statistics:
     This is 1 of 43857 approved meteorites from Antarctica (plus 3802 unapproved names)

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