header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 20 Oct 2019
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Years
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:  
LaPaz Icefield 04779
Basic information Name: LaPaz Icefield 04779
     This is an OFFICIAL meteorite name.
Abbreviation: LAP 04779
Observed fall: No
Year found: 2004
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 1.8 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 30(1)  (2007)  Ureilite
Meteoritical Bulletin:  MB 92  (2007)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 515 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 16 Feb 2007
Writeuphelp
Writeup from AMN 30(1):
Sample No.: LAP 04779
Location: LaPaz Ice Field
Field No.: 17823
Dimensions (cm):   1.0x1.0x1.0
Weight (g): 1.849
Meteorite Type: Ureilite


Macroscopic Description: Kathleen McBride
40% of the exterior surface has brown/black fusion crust. The soft interior is rusty black and very weathered.


Thin Section (,2) Description: Tim McCoy and Valerie Reynolds
The section consists of an aggregate of large olivine and pyroxene grains up to 2 mm across. Individual olivine grains are rimmed by carbon-rich material containing traces of metal. Olivine has cores of Fa22, with rims reduced to Fa4. The meteorite is a ureilite.



Thin Section Images

Cross-Polarized
Light LAP 04779
Plane-Polarized
Light LAP 04779
LAP 04779 - Cross-Polarized Light LAP 04779 - Plane-Polarized Light



Lab Images

LAP 04779

Data from:
  MB92
  Table 3
  Line 307:
Mass (g):1.8
Class:Ure
Weathering grade:C
Fayalite (mol%):4-22
Catalogs:
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 30(1) (2007), 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 39173 approved meteorites from Antarctica (plus 5051 unapproved names)

Direct link to this page