header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 7 Nov 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 031370
Basic information Name: LaPaz Icefield 031370
     This is an OFFICIAL meteorite name.
Abbreviation: LAP 031370
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 8.7 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 28(1)  (2005)  Iron-ung
Meteoritical Bulletin:  MB 89  (2005)  Iron-ung
MetBase:  v. 7.1  (2006)  Iron-ung
Recommended:  Iron, ungrouped    [explanation]

This is 1 of 129 approved meteorites (plus 1 unapproved name) classified as Iron, ungrouped.   [show all]
Search for other: Iron meteorites, Metal-rich meteorites, and Ungrouped irons
Writeuphelp
Writeup from AMN 28(1):
Sample No.: LAP 031370
Location: LaPaz Ice Field
Field No.: 16967
Dimensions (cm):   1.75x0.75x1.5
Weight (g): 8.669
Meteorite Type: Iron (Ungrouped)
    LAP031370

Macroscopic Description: Kathleen McBride
The exterior is dull and rusty with oxidation haloes. This iron is shaped like a fish.

Thin Section (,2) Description: Cari Corrigan, Tim McCoy
We examined this small meteorite in polished section from a central slice. The section consists of ~90% kamacite with abundant Neumann bands that vary in spacing from a few to a hundred microns. No heat altered zone or a2 structure was observed. Included within the metal are polyminerallic silicate inclusions that reach a few mm in diameter with included metal, troilite, chromite and pentlandite and a kidney-shaped troilite inclusion 1.2 mm in length. The silicates are broadly chondritic and relict barred chondrules are present. Silicates are homogeneous with olivine of Fa24 and orthopyroxene of Fs21. The meteorite is an ungrouped iron.

Data from:
  MB89
  Table A1
  Line 229:
Mass (g):8.67
Class:Iron-ung
Weathering grade:B
Fayalite (mol%):24
Ferrosilite (mol%):21
Catalogs:
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 28(1) (2005), 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:Unknown.

Statistics:
     This is 1 of 39173 approved meteorites from Antarctica (plus 5051 unapproved names)

Direct link to this page