Meteoritical Bulletin: Entry for MacAlpine Hills 02701

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MacAlpine Hills 02701

Basic information

Name: MacAlpine Hills 02701
This is an OFFICIAL meteorite name.
Abbreviation: MAC 02701
Observed fall: No
Year found: 2002
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 10.1 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 27(3)	(2004)	CM2
Meteoritical Bulletin:	MB 89	(2005)	CM2
MetBase:	v. 7.1	(2006)	CM2
Recommended:			CM2 [explanation]

This is 1 of 636 approved meteorites classified as CM2. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites

Comments:

Field number: 14115

Writeup

Writeup from AMN 27(3):

Sample No.:	MAC 02701
Location:	MacAlpine Hills
Field No.:	14115
Dimensions (cm):	3.0x2.0x2.0
Weight (g):	10.112
Meteorite Type:	CM2 Chondrite

Macroscopic Description: Kathleen McBride
75% of the exterior is covered with black fusion crust with polygonal fractures. The interior is a powdery black matrix with evaporites. Some sub mm light colored chondrules are visible.

Thin Section (,2) Description: Tim McCoy, Linda Welzenbach


Cross-Polarized Light	Plane-Polarized Light

The section consists of a few small chondrules (up to 1 mm), mineral grains and CAIs set in a black matrix; sulfide and carbonate grains are present. Olivine compositions are Fa_0-41, with a peak at Fa_0-1, and orthopyroxene is Fs_1-3. The matrix consists dominantly of an Fe-rich serpentine; chondrules are relatively unaltered. The meteorite is a CM2 chondrite.

Data from:
  MB89
  Table A1
  Line 448:

Origin or pseudonym:	Bottom Lip
Mass (g):	10.11
Class:	CM2
Weathering grade:	BE
Fayalite (mol%):	0-41
Ferrosilite (mol%):	1-3

Catalogs:

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

References:

Published in Antarctic Meteorite Newsletter 27(3) (2004), JSC, Houston
Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)

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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:
Recommended::	(84° 18' 58"S, 159° 46' 55"E)

Note: the MetBase and recommended coordinates are 13.7 km apart

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

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Revision
history:

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