Meteoritical Bulletin: Entry for MacKay Glacier 92500

MetSoc Home Publications Contacts

Search the Meteoritical Bulletin Database
Last update: 24 Apr 2024
Search for:	Search type:	Search limits:	Display:	Publication:
Names Text Places Classes Years	Contains Starts with Exact Sounds like	NonAntarctic Falls Non-NWAs Has strewnfield		What's new in the last:
Include past classifications in search		Has photo	Limit to approved meteorite names
Search text:

MacKay Glacier 92500

Basic information

Name: MacKay Glacier 92500
This is an OFFICIAL meteorite name.
Abbreviation: MCY 92500
Observed fall: No
Year found: 1992
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 23.4 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 16(2)	(1993)	C2
Meteoritical Bulletin:	MB 76	(1994)	C2
NHM Catalogue:	5th Edition	(2000)	C2
MetBase:	v. 7.1	(2006)	C2
Antarctic Meteorite Newsletter:	AMN 33(1)	(2010)	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

Writeup

Writeup from AMN 16(2):

Sample No.: MCY92500

Location: Mackay Glacier

Dimensions (cm): 2.9 x 2.6 x 2.3

Weight (g): 23.4

Meteorite Type: C2 chondrite

Macroscopic Description: Cecilia Satterwhite Fractured, black fusion crust covers 25% of this carbonaceous chondrite. The interior matrix is fine-grained, medium to dark gray, with abundant small white and gray inclusions. A few chondrules are visible. Oxidation is minor.

Thin Section (.5) Description: Brian Mason

The section shows chondrules up to 1.2 mm across, irregular aggregates, and small mineral grains in a black matrix. The minerals are mainly olivine, with minor pyroxene. Olivine compositions are mostly near Mg2SiO4, but occasional iron-rich grains were analyzed, up to Fs40. Pyroxene compositions range from Fs1 to Fs4. The matrix appears to be largely iron-rich serpentine. The meteorite is a C2 Chondrite.

Data from:
  MB76
  Table 2
  Line 4753:

Mass (g):	23.4
Class:	C2
Weathering grade:	A
Fayalite (mol%):	0-42
Ferrosilite (mol%):	1-5

Catalogs:

Search for specimens in the Smithsonian Institution collection (U.S.):	Require SI photo
Search for this meteorite in the NASA/JSC database (U.S.):

References:

Published in Antarctic Meteorite Newsletter 16(2) (1993), JSC, Houston
Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)

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

Geography:

Antarctica

Coordinates:
Catalogue of Meteorites:	(76° 58'S, 162° 0'E)
Recommended::	(76° 58'S, 162° 0'E)

Statistics:
This is 1 of 44547 approved meteorites from Antarctica (plus 3802 unapproved names)

Proximity search:

Also see:

This lists the most popular meteorites among people who looked up this meteorite.

Revision
history:

This lists important revisions made to data for this record.

Direct link to this page