Meteoritical Bulletin: Entry for Cumulus Hills 04049

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Cumulus Hills 04049

Basic information

Name: Cumulus Hills 04049
This is an OFFICIAL meteorite name.
Abbreviation: CMS 04049
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 90.2 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 28(2)	(2005)	Eucrite-unbr
Meteoritical Bulletin:	MB 91	(2007)	Eucrite-unbr
Recommended:			Eucrite-unbr [explanation]

This is 1 of 126 approved meteorites classified as Eucrite-unbr. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 1 Sep 2005

Writeup

Writeup from AMN 28(2):

Sample No.:	CMS 04049
Location:	Cumulus Hills
Field No.:	14086
Dimensions (cm):	6.0x2.5x3.5
Weight (g):	90.209
Meteorite Type:	Eucrite (Unbrecciated)

Macroscopic Description: Kathleen McBride
40% of the exterior is covered with black fusion crust with shiny patches. The interior consists of black and white mineral grains with some gray globs and translucent, tabular shaped minerals.

Thin Section (,4) Description: Tim McCoy
The section shows an unbrecciated intergrowth of coarse (up to 1 mm) pyroxene and plagioclase grains with a gabbroic texture. Pyroxene is exsolved to orthopyroxene (Fs₅₀Wo₅) and augite (Fs₂₈Wo₄₁) (Fe/Mn ~30) and plagioclase is An_79-91Or_0-1. Shock effects are extensive including darkening of silicates. The meteorite is an unbrecciated eucrite.


CMS 04049 Partially Cross-Polarized Light	CMS 04049 Reflected Light	CMS 04049 Partially Cross-Polarized Light

Data from:
  MB91
  Table 4
  Line 28:

Mass (g):	90.2
Class:	Euc (unbrecciated)
Weathering grade:	B
Ferrosilite (mol%):	28-59

Catalogs:

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

References:

Published in Antarctic Meteorite Newsletter 28(2) (2005), JSC, Houston
Published in Meteoritical Bulletin, no. 91, MAPS 42, 413-466 (2007)

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

Photos:

Credit	Photos
Photographs from AMN:
Photograph from unknown source	A photo is in the write-up above
Photos from the Encyclopedia of Meteorites:
Dr Carlton Allen, JSC-KT, NASA

Geography:

Antarctica

Coordinates:

Unknown.

Statistics:
This is 1 of 43700 approved meteorites from Antarctica (plus 3802 unapproved names)

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