Meteoritical Bulletin: Entry for LaPaz Icefield 02239

header

MetSoc Home Publications Contacts

Search the Meteoritical Bulletin Database
Last update: 15 Apr 2024
Search for:	Search type:	Search limits:	Display:	Publication:
Names Text Places Classes Years	Contains Starts with Exact Sounds like	NonAntarctic Falls Non-NWAs Has strewnfield		What's new in the last:
Include past classifications in search		Has photo	Limit to approved meteorite names
Search text:

LaPaz Icefield 02239

Basic information

Name: LaPaz Icefield 02239
This is an OFFICIAL meteorite name.
Abbreviation: LAP 02239
Observed fall: No
Year found: 2002
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 39.3 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 26(2)	(2003)	CM2
Meteoritical Bulletin:	MB 88	(2004)	CM2
MetBase:	v. 7.1	(2006)	CM2
Recommended:			CM2 [explanation]

This is 1 of 636 approved meteorites classified as CM2. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites

Writeup

help

Writeup from AMN 26(2):

Sample No.:	LAP 02239; LAP 02333
Location:	LaPaz Ice field
Field No.:	15176; 15531
Dimensions (cm):	4.25x3.5x3.0 7.5x4.5x3.0
Weight (g):	39.272; 131.430
Meteorite Type:	CM2 Chondrite

LAP02239

LAP02333

Macroscopic Description: Kathleen McBride
65% of the exterior of 239 has rough pitted black fusion crust with polygonal fractures and a purple cast. The interior is a black matrix with < mm sized tan and gray chondrules. 95% of 333's exterior is covered with thick chocolate brown fusion crust with a purplish tinge and polygonal fractures. The interior is a black matrix with mm sized white chondrules and inclusions. Two 4-5 mm gray clasts are visible.

Thin Section Description: (,4; ,5) Tim McCoy, Linda Welzenbach
The meteorites are so similar that a single description suffices. The sections consist of abundant small chondrules (most less than 0.5 mm), mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa_0-55, with a majority Fa_0-2, orthopyroxene is Fs_1-9. The matrix consists dominantly of an Fe-rich serpentine. The meteorites are CM2 chondrites.


LAP 02239 Plane-Polarized Light	LAP 02239 Cross-Polarized Light	LAP 02333 Plane-Polarized Light	LAP 02333 Cross-Polarized Light

Data from:
  MB88
  Table A1
  Line 24:

Mass (g):	39.272
Class:	CM2
Weathering grade:	B
Fayalite (mol%):	0-46
Ferrosilite (mol%):	3-9

Catalogs:

Search for this meteorite in the NASA/JSC database (U.S.):

References:

Published in Antarctic Meteorite Newsletter 26(2) (2003), JSC, Houston
Published in Meteoritical Bulletin, no. 88, MAPS 39, A215-A272 (2004)

Find references in NASA ADS:
Find references in Google Scholar:

Photos:

Credit	Photos
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

Antarctica

Coordinates:
Recommended::	(86° 22'S, 70° 0'W)

Statistics:
This is 1 of 44543 approved meteorites from Antarctica (plus 3802 unapproved names)

Proximity search:

Crosslinks:

This lists all records that are linked to this record and to each other.

Also see:

This lists the most popular meteorites among people who looked up this meteorite.

Revision
history:

This lists important revisions made to data for this record.

Direct link to this page