Meteoritical Bulletin: Entry for Dominion Range 18071

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Dominion Range 18071

Basic information

Name: Dominion Range 18071
This is an OFFICIAL meteorite name.
Abbreviation: DOM 18071
Observed fall: No
Year found: 2018
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 43.3 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 42(2)	(2019)	CM2
Meteoritical Bulletin:	MB 108	(2020)	CM2
Recommended:			CM2 [explanation]

This is 1 of 606 approved meteorites classified as CM2. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites

Comments:

Approved 14 Aug 2019

Writeup

help

Writeup from AMN 42(2):

Sample Number

DOM 18071

Newsletter

42,2

Location

Dominion Range

Field Number

25421

Dimensions

5.0 x 4.9 x 2.5

Weight

43.26

Original Classification

CM2 Chondrite

Mineral Composition (%Fa & %Fs)

Fayalite (mol%): 1-58;Ferrosilite (mol%): 1-12

Be

B

Macroscopic Description - Cecilia Satterwhite

The exterior is a black to dark gray color and is heavily fractured and pitted. Small inclusions/chondrules are visible on the exposed areas. It has a coarse grained texture and minor oxidation. No fusion crust is present. The interior is a dark gray to black fined grained matrix with some light/weathered inclusions/chondrules, oxidation and a thin band of evaporites is visible.

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

The section consists of numerous small chondrules (up to 0.5 mm), mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Aqueous alteration of the matrix is substantial, but the chondrules are only minimally altered. Olivine compositions are Fa_1-58, pyroxene is Fs_1-12. The meteorite is a CM2 chondrite.

Antarctic Meteorite Images for Sample DOM 18071

Thin Section Photo of Sample DOM 18071 in Cross-Polarized Light with 2.5X Magnification

Thin Section Photo of Sample DOM 18071 in Plane-Polarized Light with 2.5X Magnification

Lab Photo of Sample DOM 18071 Displaying West Orientation

Lab Photo of Sample DOM 18071 Displaying Bottom Orientation

Lab Photo of Sample DOM 18071 Displaying East Orientation

Lab Photo of Sample DOM 18071

Lab Photo of Sample DOM 18071 Displaying South Orientation

Lab Photo of Sample DOM 18071 Displaying North Orientation

Data from:
  MB108
  Table 0
  Line 0:

State/Prov/County:	Antarctica
Date:	2018
Latitude:	-85.6435
Longitude:	166.8490
Mass (g):	43.255
Pieces:	1
Class:	CM2
Weathering grade:	Be
Fayalite (mol%):	1-58
Ferrosilite (mol%):	1-12
Classifier:	SI
Type spec mass (g):	43.255
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 42(2) (2019), JSC, Houston
Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150

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Geography:

Antarctica

Antarctica

Coordinates:
Recommended::	(85° 38' 37"S, 166° 50' 56"E)

Statistics:
This is 1 of 43331 approved meteorites from Antarctica (plus 3802 unapproved names)

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