Meteoritical Bulletin: Entry for Pecora Escarpment 02016

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Pecora Escarpment 02016

Basic information

Name: Pecora Escarpment 02016
This is an OFFICIAL meteorite name.
Abbreviation: PCA 02016
Observed fall: No
Year found: 2002
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 23.9 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 26(2)	(2003)	Howardite
Meteoritical Bulletin:	MB 88	(2004)	Howardite
MetBase:	v. 7.1	(2006)	Howardite
Recommended:			Howardite [explanation]

This is 1 of 451 approved meteorites classified as Howardite. [show all]
Search for other: Achondrites, HED achondrites, and Howardites

Writeup

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Writeup from AMN 26(2):

Sample No.:	PCA 02016
Location:	Pecora Escarpment
Field No.:	13652
Dimensions (cm):	3.0x2.5x1.75
Weight (g):	23.865
Meteorite Type:	Howardite

PCA02016

Macroscopic Description: Kathleen McBride
Brown/black fusion crust covers over 50% of the exterior surface. The crust exhibits polygonal fractures and oxidation halos. The exposed interior is multiple shades of gray with some rust and exposed clasts. The interior is brecciated with a medium gray matrix with numerous multi-colored clasts, round to angular in shape and varying in size from 1-2 mm.

Thin Section (,4) Description: Tim McCoy, Linda Welzenbach
The section contains abundant basaltic clasts with rare orthopyroxene clasts. The basaltic clasts include heavily shocked coarse-grained clasts, clasts dominated by metal and sulfide and a glassy quench-textured clast, with individual clasts ranging up to 2 mm. Minerals present include olivine (Fa₃₃), orthopyroxene (Fs_33-59; Fe/Mn ~ 25), augite (up to Fs₅₃), plagioclase (An_92-95), metal and sulfide. The meteorite is a howardite.


Plane-Polarized Light	Cross-Polarized Light	Plane-Polarized Light	Cross-Polarized Light

Data from:
  MB88
  Table A1
  Line 703:

Mass (g):	23.865
Class:	How
Weathering grade:	B
Fayalite (mol%):	33
Ferrosilite (mol%):	33-59

Catalogs:

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References:

Published in Antarctic Meteorite Newsletter 26(2) (2003), JSC, Houston
Published in Meteoritical Bulletin, no. 88, MAPS 39, A215-A272 (2004)

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Photos:

Credit	Photos
Photographs from AMN:
Photograph from unknown source	A photo is in the write-up above

Geography:

Antarctica

Antarctica

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

Statistics:
This is 1 of 44543 approved meteorites from Antarctica (plus 3802 unapproved names)

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