Meteoritical Bulletin: Entry for LaPaz Icefield 031125

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LaPaz Icefield 031125

Basic information

Name: LaPaz Icefield 031125
This is an OFFICIAL meteorite name.
Abbreviation: LAP 031125
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 7 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 29(2)	(2006)	H-imp melt
Meteoritical Bulletin:	MB 92	(2007)	H-imp melt
Recommended:			H-melt rock [explanation]

This is 1 of 13 approved meteorites classified as H-melt rock. [show all]
Search for other: H chondrites, H chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 1 Sep 2006

Writeup

Writeup from AMN 29(2):

Sample No.:	LAP 031125
Location:	LaPaz Ice Field
Field No.:	16364
Dimensions (cm):	2.0x1.5x1.25
Weight (g):	7.039
Meteorite Type:	H Chondrite (Impact Melt)

Macroscopic Description: Kathleen McBride
The exterior of this meteorite is a dull brown color with no fusion crust. The interior of this ordinary chondrite is black, friable and has some rust.

Thin Section (,2) Description: Valerie Reynolds and Tim McCoy
The meteorite exhibits a relatively coarse (50-100 micron grain size), equigranular silicate matrix including rounded to irregular, metal-sulfide blebs reaching 0.5 mm and vesicles reaching 0.5 mm. Mafic silicate compositions (Fa₁₇, Fs₁₆) indicate H chondrite parentage and texture suggests it is an impact melt.

Thin Section Images

Cross-Polarized Light	Plane-Polarized Light	Reflected Light

Lab Images

Data from:
  MB92
  Table 3
  Line 336:

Mass (g):	7
Class:	H-IM
Weathering grade:	B
Fayalite (mol%):	17
Ferrosilite (mol%):	16

Catalogs:

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

References:

Published in Antarctic Meteorite Newsletter 29(2) (2006), JSC, Houston
Published in Meteoritical Bulletin, no. 92, MAPS 42, 1647-1694 (2007)

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

Photos:

Credit	Photos
Photographs from AMN:
JSC	A photo is in the write-up above

Geography:

Antarctica

Coordinates:

Unknown.

Statistics:
This is 1 of 43700 approved meteorites from Antarctica (plus 3802 unapproved names)

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