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Pecora Escarpment 02011
Basic information Name: Pecora Escarpment 02011
     This is an OFFICIAL meteorite name.
Abbreviation: PCA 02011
Observed fall: No
Year found: 2002
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 2.6 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 27(1)  (2004)  CM2
Meteoritical Bulletin:  MB 88  (2004)  CM2
MetBase:  v. 7.1  (2006)  CM2
Recommended:  CM2    [explanation]

This is 1 of 540 approved meteorites classified as CM2.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites
Writeuphelp
Writeup from AMN 27(1):
Sample No.: PCA 02011; PCA 02012
Location: Pecora Escarpment
Field No.: 13616; 13657
Dimensions (cm):   2.5x1.25x0.5
4.0x3.5x3.0
Weight (g): 2.613; 58.922
Meteorite Type: CM2 Chondrite
    PCA02011 PCA02012

Macroscopic Description: Kathleen McBride
5-10% of the exteriors have a purplish black fusion crust with rough areas and a slight sheen. The interiors reveal a black charcoal-like, platy matrix, with tiny white and tan inclusions.

Thin Section (,2) Description: Linda Welzenbach, Tim McCoy
The sections consist of a few small chondrules (up to 1 mm), mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa0-43, with a peak at Fa0-2, orthopyroxene is Fs0-5. The matrix consists dominantly of an Fe-rich serpentine; chondrules are relatively unaltered. The meteorites are CM2 chondrites and probably paired.


PCA 02011 - Cross-Polarized Light PCA 02011 - Plane-Polarized Light PCA 02012 - Cross-Polarized Light PCA 02012 - Plane-Polarized Light
PCA 02011
Cross-Polarized Light
PCA 02011
Plane-Polarized Light
PCA 02012
Cross-Polarized Light
PCA 02012
Plane-Polarized Light
Data from:
  MB88
  Table A1
  Line 698:
Mass (g):2.613
Class:CM2
Weathering grade:A/B
Fayalite (mol%):1-43
Ferrosilite (mol%):0-2
Catalogs:
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 27(1) (2004), JSC, Houston
Published in Meteoritical Bulletin, no. 88, MAPS 39, A215-A272 (2004)
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Photos:
CreditPhotos
Photographs from AMN:
Photograph from unknown source A photo is in the write-up above
Geography:

Antarctica
Coordinates:
     Recommended::   (85° 38'S, 68° 42'W)

Statistics:
     This is 1 of 40129 approved meteorites from Antarctica (plus 4494 unapproved names)
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