Meteoritical Bulletin: Entry for Elephant Moraine 16039

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Elephant Moraine 16039

Basic information

Name: Elephant Moraine 16039
This is an OFFICIAL meteorite name.
Abbreviation: EET 16039
Observed fall: No
Year found: 2016
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 8.4 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 40(2)	(2017)	Howardite
Meteoritical Bulletin:	MB 106	(2018)	Howardite
Recommended:			Howardite [explanation]

This is 1 of 392 approved meteorites classified as Howardite. [show all]
Search for other: Achondrites, HED achondrites, and Howardites

Comments:

Approved 12 Sep 2017

Writeup

help

Writeup from AMN 40(2):

Sample Number

EET 16039

Newsletter

40,2

Location

Elephant Moraine

Field Number

24489

Dimensions

2.2x2x1.7

Weight

8.37

Original Classification

Howardite

Mineral Composition (%Fa & %Fs)

Fayalite (mol%): 32-53;Ferrosilite (mol%): 91-93

A

B

Macroscopic Description - Rachel Funk

There is a black, glassy fusion crust covering 70% of the rock. The fusion crust is fractured and some fractures penetrate the interior of the rock. The exposed surface reveals a gray matrix with white inclusions and minor amounts of orange and yellow rust. The interior gray matrix contains beige clasts (up to 1 cm in size) and white clasts (up to 2 mm in size).

Thin Section Description (,,2) - Cari Corrigan, Tim McCoy

The section shows a groundmass of comminuted pyroxene and plagioclase (up to 0.5 mm) with fine- to coarse-grained basaltic clasts ranging up to 2 mm. Most of the pyroxene is orthopyroxene with compositions ranging from Fs_32-53Wo_2-39 and feldspar An_91-93Or_0.4. The meteorite is a howardite.

Antarctic Meteorite Images for Sample EET 16039

Lab Photo of Sample EET 16039

Lab Photo of Sample EET 16039 Displaying East Orientation

Lab Photo of Sample EET 16039 Displaying North Orientation

Lab Photo of Sample EET 16039 Displaying South Orientation

Lab Photo of Sample EET 16039 Displaying Top Orientation

Lab Photo of Sample EET 16039 Displaying West Orientation

Thin Section Photo of Sample EET 16039 in Plane-Polarized Light with 2.5X Magnification

Thin Section Photo of Sample EET 16039 in Reflected Light with 2.5X Magnification

Thin Section Photo of Sample EET 16039 in Cross-Polarized Light with 2.5X Magnification

Thin Section Photo of Sample EET 16039 in Plane-Polarized Light with 5X Magnification

Thin Section Photo of Sample EET 16039 in Reflected Light with 5X Magnification

Thin Section Photo of Sample EET 16039 in Cross-Polarized Light with 5X Magnification

Data from:
  MB106
  Table 0
  Line 0:

Date:	2016
Mass (g):	8.4
Pieces:	1
Class:	Howardite
Weathering grade:	A
Fayalite (mol%):	32-53
Ferrosilite (mol%):	91-93
Classifier:	SI
Type spec mass (g):	8.4
Type spec location:	JSC
Main mass:	JSC
Finder:	ANSMET
Comments:	Submitted by AMN

Institutions
and collections

JSC: Mailcode KT, 2101 NASA Parkway, NASA Johnson Space Center, Houston, TX 77058, United States; Website (institutional address; updated 3 Sep 2013)
SI: Department of Mineral Sciences, NHB-119, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560, United States; Website (institutional address; updated 16 Jan 2012)

Catalogs:

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

References:

Published in Antarctic Meteorite Newsletter 40(2) (2017), JSC, Houston
Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.

Find references in NASA ADS:
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Geography:

Antarctica

Antarctica

Coordinates:

Unknown.

Statistics:
This is 1 of 40719 approved meteorites from Antarctica (plus 4494 unapproved names)

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