Meteoritical Bulletin: Entry for LaPaz Icefield 03865

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LaPaz Icefield 03865

Basic information

Name: LaPaz Icefield 03865
This is an OFFICIAL meteorite name.
Abbreviation: LAP 03865
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 19.2 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 29(1)	(2006)	CM2
Meteoritical Bulletin:	MB 91	(2007)	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

Comments:

Approved 21 Feb 2006

Writeup

Writeup from AMN 29(1):

Sample No.:	LAP 03865
Location:	LaPaz Ice Field
Field No.:	16504
Dimensions (cm):	4.0x3.0x1.5
Weight (g):	19.161
Meteorite Type:	CM2 Chondrite

Macroscopic Description: Kathleen McBride
20% of the exterior has thick, polygonal fractured purple fusion crust. The interior of this carbonaceous chondrite has a black, charcoal-like matrix with an oxidation rind. Tiny white inclusions are present.

Thin Section (,2) Description: Tim McCoy and Valerie Reynolds
The sections consist of a few small chondrules (up to 0.5 mm), mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa_0-54, with a peak at Fa_0-2. The matrix consists dominantly of an Fe-rich serpentine. The meteorite is a CM2 chondrite.

Cross-Polarized Light	Plane-Polarized Light	Cross-Polarized Light	Plane-Polarized Light

Data from:
  MB91
  Table 4
  Line 348:

Mass (g):	19.2
Class:	CM2
Weathering grade:	C
Fayalite (mol%):	0-54

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)

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Photos:

Credit	Photos
Photographs from AMN:
Photograph from unknown source	A photo is in the write-up above

Geography:

Antarctica

Coordinates:

Unknown.

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

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Revision
history:

This lists important revisions made to data for this record.

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