MacAlpine Hills 88104 and 88105 lunar highland meteorites: General description and consortium overview

Conference · Fri Nov 01 00:00:00 EST 1991 · Geochimica et Cosmochimica Acta; (United States)

OSTI ID:5171877

Lindstrom, M M ^[1]; Schwarz, C; Score, R ^[2]; Mason, B ^[3]

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1. Johnson Space Center, Houston, TX (United States)
2. Lockheed Engineering and Science Co., Houston, TX (United States)
3. National Museum of Natural History, Washington, DC (United States)

MacAlpine Hills 88104 and 88105 are new lunar meteorites returned from Antarctica by the 1988-1989 US meteorite collection team. The two specimens were found in nearby locations and, based on field and laboratory evidence, are thought to be pieces of the same meteorite. MAC88105 is the largest lunar meteorite yet found (662 g). MAC88104/5 is an anorthositic breccia consisting of numerous small clasts in a glassy matrix. An origin on the Moon is supported by mineral, bulk, and oxygen isotope compositions. A consortium of twenty research groups has studied these meteorites. Samples were prepared at the NASA Johnson Space Center meteorite processing laboratory. Details of consortium plans and allocations are documented herein. A summary list of lunar meteorites and an overview of consortium research is presented. Discussions in this and the following consortium papers involve the issue of paired meteorites and paired ejecta, and what new information about the nature and evolution of the lunar crust is provided by the lunar meteorites.

• OSTI ID: 5171877
• Report Number(s): CONF-9003166-; CODEN: GCACA
• Journal Information: Geochimica et Cosmochimica Acta; (United States), Vol. 55:11; Conference: 21. lunar and planetary science conference, Houston, TX (United States), Mar 1990; ISSN 0016-7037
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
LUNAR MATERIALS
PETROGENESIS
METEORITES
ISOTOPE RATIO
MINERALOGY
ANORTHOSITES
ANTARCTICA
CHEMICAL COMPOSITION
COMPARATIVE EVALUATIONS
MOON
ORIGIN
OXYGEN ISOTOPES
ANTARCTIC REGIONS
EVALUATION
GABBROS
IGNEOUS ROCKS
ISOTOPES
MATERIALS
PLUTONIC ROCKS
POLAR REGIONS
ROCKS
SATELLITES
580000* - Geosciences