Meteoritical Bulletin: Entry for LaPaz Icefield 04844

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LaPaz Icefield 04844

Basic information

Name: LaPaz Icefield 04844
This is an OFFICIAL meteorite name.
Abbreviation: LAP 04844
Observed fall: No
Year found: 2004
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 6.8 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 29(1)	(2006)	Diogenite
Meteoritical Bulletin:	MB 91	(2007)	Diogenite
Recommended:			Diogenite [explanation]

This is 1 of 522 approved meteorites classified as Diogenite. [show all]
Search for other: Achondrites, Diogenites, and HED achondrites

Comments:

Approved 21 Feb 2006

Writeup

Writeup from AMN 29(1):

Sample No.:	LAP 04844
Location:	LaPaz Ice Field
Field No.:	17074
Dimensions (cm):	2.0x2.0x1.5
Weight (g):	6.831
Meteorite Type:	Diogenite

Macroscopic Description: Kathleen McBride
The exterior has some patchy brown/black fusion crust. The tan to yellowish fine grained matrix has green and brown clasts of various sizes. Thin Section (,2) Description: Tim McCoy and Linda Welzenbach

Cross-Polarized Light	Plane-Polarized Light

The section shows a groundmass of coarse (up to 1.5 mm) comminuted pyroxene. Orthopyroxene has a composition of Fs₂₃Wo₂. The meteorite is a diogenite and is probably paired with the LAP 91900 pairing group.

Data from:
  MB91
  Table 4
  Line 691:

Mass (g):	6.8
Class:	Dio
Weathering grade:	B
Ferrosilite (mol%):	23

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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