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LaPaz Icefield 04846
Basic information Name: LaPaz Icefield 04846
     This is an OFFICIAL meteorite name.
Abbreviation: LAP 04846
Observed fall: No
Year found: 2004
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 0.5 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 29(2)  (2006)  Eucrite-br
Meteoritical Bulletin:  MB 92  (2007)  Eucrite-br
Recommended:  Eucrite-br    [explanation]

This is 1 of 187 approved meteorites classified as Eucrite-br.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 1 Sep 2006
Writeuphelp
Writeup from AMN 29(2):
Sample No.: LAP 04846
Location: LaPaz Ice Field
Field No.: 17409
Dimensions (cm):   1.0x0.75x0.5
Weight (g): 0.512
Meteorite Type: Eucrite (Brecciated)


Macroscopic Description: Kathleen McBride
80% of exterior has shiny black fusion crust. The gray matrix has some rust stains and white inclusions are visible.


Thin Section (,2) Description: Tim McCoy and Valerie Reynolds
This meteorite consists of a brecciated matrix that contains abundant coarse (up to 2 mm) mineral fragments and rare polyminerallic clusters. Mineral compositions are relatively homogeneous with orthopyroxene (Fs41Wo2), with lamellae of augite (Fs12Wo45), and plagioclase (An91Or0.5). The Fe/Mn ratio of the pyroxene is ~30. The meteorite is a brecciated eucrite.



Thin Section Images

Cross-Polarized LightPlane-Polarized Light
LAP 04846 - Cross-Polarized Light LAP 04846 - Plane-Polarized Light



Lab Images

LAP 04846 Image North

Data from:
  MB92
  Table 3
  Line 320:
Mass (g):0.5
Class:Euc (Brecciated)
Weathering grade:B
Ferrosilite (mol%):12-41
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:
CreditPhotos
Photographs from AMN:
JSC A photo is in the write-up above
Geography:

Antarctica
Coordinates:Unknown.

Statistics:
     This is 1 of 40759 approved meteorites from Antarctica (plus 4494 unapproved names)

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