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LaPaz Icefield 031158
Basic information Name: LaPaz Icefield 031158
     This is an OFFICIAL meteorite name.
Abbreviation: LAP 031158
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 4.4 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 29(1)  (2006)  CK5
Meteoritical Bulletin:  MB 91  (2007)  CK5
Recommended:  CK5    [explanation]

This is 1 of 217 approved meteorites classified as CK5.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites
Comments: Approved 21 Feb 2006
Writeuphelp
Writeup from AMN 29(1):
Sample No.: LAP 031158
Location: LaPaz Ice Field
Field No.: 16353
Dimensions (cm):   2.0x1.0x1.0
Weight (g): 4.413
Meteorite Type: CK5 Chondrite
LAP 031158


Macroscopic Description: Kathleen McBride
95% of the exterior has black fusion crust with polygonal fractures. The interior is a charcoal gray matrix with gray chondrules.

Thin Section (,2) Description: Tim McCoy and Linda Welzenbach
The section consists of a few large (up to 2 mm) chondrules in a recrystallized matrix of finer-grained silicates, sulfides and magnetite. Shock effects are extensive. Olivine is homogeneous at Fa27. The meteorite is a CK5 chondrite.
Cross-Polarized LightPlane-Polarized LightCross-Polarized LightPlane-Polarized Light
LAP 031158 - Cross-Polarized Light LAP 031158 - Plane-Polarized Light
 LAP 031158 - Cross-Polarized Light LAP 031158 - Plane-Polarized Light
Data from:
  MB91
  Table 4
  Line 601:
Mass (g):4.4
Class:CK5
Weathering grade:B
Fayalite (mol%):27
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
Geography:

Antarctica
Coordinates:Unknown.

Statistics:
     This is 1 of 44547 approved meteorites from Antarctica (plus 3802 unapproved names)
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Revision
  history:
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