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Outer Recovery Icefields 18011
Basic information Name: Outer Recovery Icefields 18011
     This is an OFFICIAL meteorite name.
Abbreviation: OUT 18011
Observed fall: No
Year found: 2019
Country: Antarctica [Collected by the Lost Meteorites of Antarctica project, UK]
Mass:help 406 g
Recommended:  H6    [explanation]

This is 1 of 6626 approved meteorites (plus 5 unapproved names) classified as H6.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 11 Dec 2021
Writeup from MB 110:

Outer Recovery Icefields 18011 (OUT 18011)        81°30.50483’S, 17°53.65900’W

Antarctica, Antarctica

Find: 2019 Jan 09

Classification: Ordinary chondrite (H6)

History: The meteorite was recovered as part of the Lost Meteorites of Antarctica project, which was funded in the UK by the Leverhulme Trust and supported by the British Antarctic Survey and the University of Manchester. These samples were collected as part of the project’s first field season in austral summer December 2018 - January 2019 by a two person field party consisting of Katherine Joy and Julie Baum. Found on blue ice surface. Altitude 1443 m.

Physical characteristics: Mass: 405.57 g. Pieces: 1. Dimensions: 9 × 6 × 4 cm. A blocky, whole stone with 95% black fusion crust.

Petrography: Highly equilibrated texture with some poorly defined relict chondrules (up to 1 mm in diameter). Metal and sulfide grains occur as grains up to 0.5 mm throughout. Plagioclase grains up to 0.8 mm.

Geochemistry: Mineral compositions and geochemistry: All analyses by EPMA. Olivine Fa19.7±0.3 (N=12), Pyroxene Fs17.1±0.1Wo1.4±0.2 (N=12). Plagioclase An12.6±0.6Ab82.1±0.8Or5.3±0.2 (N=3).

Classification: H6

Specimens: 402.873 g type specimen (main mass) held at NHM.

Data from:
  Table 0
  Line 0:
Origin or pseudonym:Outer Recovery 3 (west)
Date:2019 Jan 09
Mass (g):405.57
Weathering grade:B
Fayalite (mol%):19.7±0.3 (N=12)
Ferrosilite (mol%):17.1±0.1 (N=12)
Wollastonite (mol%):1.4±0.2 (N=12)
Magnetic suscept.:5.17
Classifier:J. L. MacArthur, K. L. Joy and R. H. Jones, UMan
Type spec mass (g):402.87
Type spec location:NHM
Main mass:NHM
Finder:Katherine Joy
Comments:Field ID:000011 BAS ID: Z18.3.7; submitted by J. L. MacArthur, UMan
   and collections
NHM: Department of Mineralogy, The Natural History Museum, Cromwell Road, London SW7 5BD, United Kingdom; Website (institutional address; updated 9 Dec 2011)
UMan: Department of Earth Sciences, University of Manchester, Oxford Road, Manchester, M139PL, United Kingdom (institutional address)
References: Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Public domain photographs:
Jane MacArthur      

     Recommended::   (81° 30' 30"S, 17° 53' 40"W)

     This is 1 of 8 approved meteorites from Antarctica, Antarctica
     This is 1 of 44048 approved meteorites from Antarctica (plus 3802 unapproved names)
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