Meteoritical Bulletin: Entry for LaPaz Icefield 03785

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LaPaz Icefield 03785

Basic information

Name: LaPaz Icefield 03785
This is an OFFICIAL meteorite name.
Abbreviation: LAP 03785
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 43.4 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 28(1)	(2005)	CM2
Meteoritical Bulletin:	MB 89	(2005)	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

Writeup from AMN 28(1):

Sample No.:	LAP 03718; LAP 03785
Location:	LaPaz Ice Field
Field No.:	16841; 16284
Dimensions (cm):	5.5x5.0x3.0 5.0x4.0x2.0
Weight (g):	95.209; 43.434
Meteorite Type:	CM2 Chondrite

Macroscopic Description: Kathleen McBride
The exterior has purplish black fusion crust with some fractures. The interior is black with a few mm sized light colored chondrules. 718 has an evaporate rim.

Thin Section (,2) Description: Cari Corrigan, Tim McCoy
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_1-48, with a peak at Fa_0-2; orthopyroxene is Fs₁. The matrix consists dominantly of an Fe-rich serpentine. The meteorites are CM2 chondrites.


LAP 03718 Cross-Polarized Light	LAP 03718 Plane-Polarized Light	LAP 03785 Cross-Polarized Light	LAP 03785 Plane-Polarized Light

Data from:
  MB89
  Table A1
  Line 251:

Origin or pseudonym:	Whispering Bamboo Grove
Mass (g):	43.43
Class:	CM2
Weathering grade:	B
Fayalite (mol%):	1-40
Comments:	03718 pairing group

Catalogs:

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

References:

Published in Antarctic Meteorite Newsletter 28(1) (2005), 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:

Unknown.

Statistics:
This is 1 of 44547 approved meteorites from Antarctica (plus 3802 unapproved names)

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