header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 16 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:
Include past classifications in search
Limit to approved meteorite names
Search text:  
LaPaz Icefield 031308
Basic information Name: LaPaz Icefield 031308
     This is an OFFICIAL meteorite name.
Abbreviation: LAP 031308
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 29(2)  (2006)  H-imp melt
Meteoritical Bulletin:  MB 92  (2007)  H-imp melt
Recommended:  H-melt rock    [explanation]

This is 1 of 13 approved meteorites classified as H-melt rock.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 1 Sep 2006
Writeuphelp
Writeup from AMN 29(2):
Sample No.: LAP 031308
Location: LaPaz Ice Field
Field No.: 16735
Dimensions (cm):   2.25x1.5x1.5
Weight (g): 8.673
Meteorite Type: H Chondrite (Impact Melt)


Macroscopic Description: Kathleen McBride
This H chondrite has a rough brown interior which crumbles easily.


Thin Section (,2) Description: Tim McCoy and Valerie Reynolds
The meteorite exhibits an area with microcrystalline silicate matrix including rounded metal-sulfide blebs reaching 20 microns, as well as relict grains, chondrules and clasts reaching up to a few mm that are highly-shocked with local metal-sulfide redistribution. Mafic silicate compositions (Fa19, Fs17) indicate H chondrite parentage and texture suggests it is an impact melt breccia. Pairing with the LAP 031173 group is possible.



Thin Section Images

Cross-Polarized LightPlane-Polarized LightReflected Light
LAP 031308 - Cross-Polarized Light LAP 031308 - Plane-Polarized Light LAP 031308 - Reflected Light



Lab Images

LAP 031308 Image North

Data from:
  MB92
  Table 3
  Line 441:
Mass (g):8.7
Class:H-IM
Weathering grade:C
Fayalite (mol%):19
Ferrosilite (mol%):16
Catalogs:
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 29(2) (2006), 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