header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 14 Jun 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 02277
Basic information Name: LaPaz Icefield 02277
     This is an OFFICIAL meteorite name.
Abbreviation: LAP 02277
Observed fall: No
Year found: 2002
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 7.8 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 27(3)  (2004)  CM1
Meteoritical Bulletin:  MB 89  (2005)  CM1
MetBase:  v. 7.1  (2006)  CM1
Recommended:  CM1    [explanation]

This is 1 of 26 approved meteorites classified as CM1.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 1), CM chondrites, and CM-CO clan chondrites
Writeuphelp
Writeup from AMN 27(3):
Sample No.: LAP 02277
Location: LaPaz Ice Field
Field No.: 15432
Dimensions (cm):   2.5x2.0x1.5
Weight (g): 7.756
Meteorite Type: CM1 Chondrite
    LAP02277

Macroscopic Description: Kathleen McBride
70% of the exterior is covered with rough purplish black fractured fusion crust. The interior of this carbonaceous chondrite has a black, chalky matrix with black to dark gray inclusions.

Thin Section (,2) Description: Tim McCoy, Cari Corrigan
The section consists of a few small chondrules (up to 0.5 mm) that have been completely replaced by phyllosilicate set in an Fe-rich serpentine matrix. No isolated mineral grains or CAIs are apparent; sulfide and carbonate grains are present. Unaltered olivine or pyroxene grains of sufficient size for microprobe analyses were not found. The meteorite is a highly altered CM chondrite probably of petrologic type 1.


LAP 02277 - Cross-Polarized Light LAP 02277 - Plane-Polarized Light LAP 02277 - Reflected Light
LAP 02277
Cross-Polarized Light
LAP 02277
Plane-Polarized Light
LAP 02277
Reflected Light
Data from:
  MB89
  Table A1
  Line 87:
Mass (g):7.76
Class:CM1
Weathering grade:A
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)
Find references in NASA ADS:
Find references in Google Scholar:
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 38937 approved meteorites from Antarctica (plus 5051 unapproved names)
Proximity search:
Find nearby meteorites: enter search radius (km):

Direct link to this page