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LaPaz Icefield 04754
Basic information Name: LaPaz Icefield 04754
     This is an OFFICIAL meteorite name.
Abbreviation: LAP 04754
Observed fall: No
Year found: 2004
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 7.2 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 31(1)  (2008)  CM2
Meteoritical Bulletin:  MB 94  (2008)  CM2
Recommended:  CM2    [explanation]

This is 1 of 541 approved meteorites classified as CM2.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites
Comments: Approved 17 Feb 2008
Writeuphelp
Writeup from AMN 31(1):
Sample No.: LAP 04754
Location: LaPaz Ice Field
Field No.: 17602
Dimensions (cm):   2.25 x 1.5 x 2.0
Weight (g): 7.229
Meteorite Type:

CM2 Chondrite

Pairing:


Macroscopic Description: Kathleen McBride
30% of the exterior has shiny purple-black fusion crust with black spots. The interior is a black matrix with tiny white chondrules/inclusions.

 

Thin Section (,2) Description: Tim McCoy
The section consists of abundant small, light to moderately-altered chondrules (up to 1 mm), chondrule fragments, mineral grains and CAI’s set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa1-5. The matrix consists dominantly of an Fe-rich serpentine. The meteorite is a CM2 chondrite.


Thin Section Images

Plane-Polarized
Light LAP 04754
Cross-Polarized
Light LAP 04754
LAP 04754 - Plane-Polarized
LAP 04754 - Cross-Polarized



Lab Images

North View
LAP 04754
LAP 04754 - North View

Data from:
  MB94
  Table 4
  Line 464:
Mass (g):7.2
Class:CM2
Weathering grade:C
Fayalite (mol%):1-5
Ferrosilite (mol%):23
Catalogs:
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 31(1) (2008), JSC, Houston
Published in Meteoritical Bulletin, no. 94, MAPS 43, 1551-1588 (2008)
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Antarctica
Coordinates:Unknown.

Statistics:
     This is 1 of 40129 approved meteorites from Antarctica (plus 4494 unapproved names)

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