Meteoritical Bulletin: Entry for LaPaz Icefield 02342

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LaPaz Icefield 02342

Basic information

Name: LaPaz Icefield 02342
This is an OFFICIAL meteorite name.
Abbreviation: LAP 02342
Observed fall: No
Year found: 2002
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 42.4 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 27(3)	(2004)	CR2
Meteoritical Bulletin:	MB 89	(2005)	CR2
MetBase:	v. 7.1	(2006)	CR2
Recommended:			CR2 [explanation]

This is 1 of 187 approved meteorites classified as CR2. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), and CR chondrites

Writeup

Writeup from AMN 27(3):

Sample No.:	LAP 02342
Location:	LaPaz Ice Field
Field No.:	15522
Dimensions (cm):	3.0x3.0x2.25
Weight (g):	42.418
Meteorite Type:	CR2 Chondrite

Macroscopic Description: Kathleen McBride
100% of the exterior is covered with dull, brown/black fusion crust with oxidation haloes. The chocolate brown interior has millimeter sized multicolored chondrules.

Thin Section (,2) Description: Tim McCoy, Cari Corrigan
The section exhibits large (up to 2 mm), well-defined, metal-rich chondrules and CAIs in a dark matrix of FeO-rich phyllosilicate. Polysynthetically twinned pyroxene is abundant. Silicates are unequilibrated; olivines range from Fa_0-5, and pyroxenes from Fs_1-3. The meteorite is probably a CR2 chondrite.


LAP 02342 Cross-Polarized Light	LAP 02342 Plane-Polarized Light	LAP 02342 Reflected Light

Data from:
  MB89
  Table A1
  Line 140:

Mass (g):	42.42
Class:	CR2
Weathering grade:	A/B
Fayalite (mol%):	0-5
Ferrosilite (mol%):	1-3

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)

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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

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

Statistics:
This is 1 of 43857 approved meteorites from Antarctica (plus 3802 unapproved names)

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