header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 29 May 2023
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 03930
Basic information Name: LaPaz Icefield 03930
     This is an OFFICIAL meteorite name.
Abbreviation: LAP 03930
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 8.8 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 29(1)  (2006)  EL3
Meteoritical Bulletin:  MB 91  (2007)  EL3
Recommended:  EL3    [explanation]

This is 1 of 26 approved meteorites classified as EL3.   [show all]
Search for other: EL chondrites, Enstatite chondrites, Enstatite chondrites (type 3), and Enstatite-rich meteorites
Comments: Approved 21 Feb 2006
Writeuphelp
Writeup from AMN 29(1):
Sample No.: LAP 03930
Location: LaPaz Ice Field
Field No.: 16474
Dimensions (cm):   2.0x1.9x1.0
Weight (g): 8.775
Meteorite Type: EL3 Chondrite
LAP 03930


Macroscopic Description: Cecilia Satterwhite
95% of the exterior has brown/black fusion crust with oxidation halos. The interior is rusty with metal and some dark gray to black areas visible. Weathered mm sized inclusions are visible.

Thin Section (,2) Description: Tim McCoy and Valerie Reynolds
Cross-Polarized LightPlane-Polarized Light
LAP 03930 - Cross-Polarized Light LAP 03930 - Plane-Polarized Light
The section shows an aggregate of chondrules (up to 1 mm), chondrule fragments, and pyroxene grains in a matrix of about 30% metal and sulfide. Chondrules contain small amounts of olivine. Weathering is modest, with staining of some enstatite grains and minor alteration of metal and sulfides. Microprobe analyses show pyroxene is Fs0-17, with most grains Fs0-2. Metal contains ~0.6 wt.% Si. The meteorite is a type 3 enstatite chondrite, probably an EL3.
Data from:
  MB91
  Table 4
  Line 403:
Mass (g):8.8
Class:EL3
Weathering grade:B/C
Ferrosilite (mol%):0-17
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)
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
Geography:

Antarctica
Coordinates:Unknown.

Statistics:
     This is 1 of 43856 approved meteorites from Antarctica (plus 3802 unapproved names)

Direct link to this page