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LaPaz Icefield 03630
Basic information Name: LaPaz Icefield 03630
     This is an OFFICIAL meteorite name.
Abbreviation: LAP 03630
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 175.7 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 27(3)  (2004)  Diogenite
Meteoritical Bulletin:  MB 89  (2005)  Diogenite
MetBase:  v. 7.1  (2006)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 427 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Writeuphelp
Writeup from AMN 27(3):
Sample No.: LAP 03630
Location: LaPaz Ice Field
Field No.: 16049
Dimensions (cm):   5.5x4.0x3.5
Weight (g): 175.672
Meteorite Type: Diogenite
    LAP03630 LAP03630

Macroscopic Description: Kathleen McBride
The exterior has small patches of chocolate brown crust (<10%) visible on the exterior. Areas without fusion crust show a tan matrix with green clasts visible. The interior matrix is light gray with olive green, angular inclusions.

Thin Section (,2) Description: Tim McCoy, Linda Welzenbach
The section is dominated by orthopyroxene, with individual grains reaching over 5 mm. The majority of the section consists of smaller (1 mm), equant grains which commonly intersect at 120º triple junctions. Orthopyroxene has a composition of Fs24Wo2 and an Fe/Mn ratio of ~28. The meteorite is a diogenite, although its texture is unusual.


LAP 03630 - Cross-Polarized Light LAP 03630 - Plane-Polarized Light LAP 03630 - Cross-Polarized Light LAP 03630 - Plane-Polarized Light
LAP 03630
Cross-Polarized Light
LAP 03630
Plane-Polarized Light
LAP 03630
Cross-Polarized Light
LAP 03630
Plane-Polarized Light
Data from:
  MB89
  Table A1
  Line 240:
Origin or pseudonym:Pebble Beach
Mass (g):175.67
Class:Dio
Weathering grade:A
Ferrosilite (mol%):24
Catalogs:
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 27(3) (2004), JSC, Houston
Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
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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 39173 approved meteorites from Antarctica (plus 5051 unapproved names)
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