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LaPaz Icefield 03788
Basic information Name: LaPaz Icefield 03788
     This is an OFFICIAL meteorite name.
Abbreviation: LAP 03788
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 8.3 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 29(1)  (2006)  L-imp melt
Meteoritical Bulletin:  MB 91  (2007)  L-imp melt
Recommended:  L-imp melt    [explanation]

This is 1 of 30 approved meteorites classified as L-imp melt.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 21 Feb 2005
Writeuphelp
Writeup from AMN 29(1):
Sample No.: LAP 03788
Location: LaPaz Ice Field
Field No.: 16282
Dimensions (cm):   4.0x4.0x2.25
Weight (g): 8.255
Meteorite Type: L Chondrite (Impact Melt)
LAP 03788 LAP 03788


Macroscopic Description: Kathleen McBride
60% of the exterior of this meteorite has dull black fusion crust with polygonal fractures. The interior is a gray matrix with light gray chondrules and dark gray angular inclusions. Evaporite deposits are seen near the fusion crust. Some rust is present.

Thin Section (,2) Description: Tim McCoy and Linda Welzenbach
The meteorite exhibits a relatively coarse (50-100 micron grain size), equigranular silicate matrix including rounded to irregular, sulfide-free metal blebs reaching 0.5 mm and vesicles reaching 0.5 mm. Mafic silicate compositions (Fa23 , Fs19 ) indicate L chondrite parentage and texture suggests it is an impact melt.
Cross-Polarized LightPlane-Polarized LightCross-Polarized LightPlane-Polarized Light
LAP 03788 - Cross-Polarized Light LAP 03788 - Plane-Polarized Light
LAP 03788 - Cross-Polarized Light LAP 03788 - Plane-Polarized Light
Data from:
  MB91
  Table 4
  Line 284:
Mass (g):8.3
Class:L (IM)
Weathering grade:A/BE
Fayalite (mol%):23
Ferrosilite (mol%):19
Catalogs:
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 29(1) (2006), JSC, Houston
Published in Meteoritical Bulletin, no. 91, MAPS 42, 413-466 (2007)
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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:
unknown      
Geography:

Antarctica
Coordinates:Unknown.

Statistics:
     This is 1 of 38937 approved meteorites from Antarctica (plus 5051 unapproved names)

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