Los Angeles (meteorite)
Los Angeles Meteorite | |
---|---|
Type | Achondrite |
Class | Martian meteorite |
Group | Shergottite |
Parent body | Mars |
Country | United States |
Region | Mojave Desert |
Fall date | No |
Found date | October 30, 1999 |
TKW | 698 grams (24.6 oz) |
Strewn field | No |
Los Angeles: Mars meteorite stone #2 (shergottite) weighing 245.4 grams. 1 cm square cube for scale |
The Los Angeles Meteorite is a martian meteorite fallen in California's Mojave Desert. It was found around 1980 by Bob Verish and consists of two stones of 452.6 grams (15.96 oz) and 245.4 grams (8.66 oz).[1] Verish stored the meteorites in his rock collection before examining the find again on October 30, 1999 when he recognized it as a meteorite. He removed small samples for analysis by Alan Rubin at UCLA. By January 12, analysis confirmed the meteorite to be of Martian origin, similar to found in the Antarctic in 1994.[2][3]
Analysis at the time noted that the meteorite was "in many respects was the most geochemically evolved sample yet discovered from Mars." A 2000 paper in the journal Geology described the meteorite as being "more differentiated, with higher concentrations of incompatible elements (e.g., La) and a higher abundance of late-stage phases such as phosphates and K-rich feldspathic glass" than previous Martian meteorites such as Shergotty and Zagami meteorites.[4]
References[]
- ^ "Meteoritical Bulletin: Entry for Los Angeles". www.lpi.usra.edu.
- ^ "The Los Angeles Meteorite". www2.jpl.nasa.gov.
- ^ (ed.), Tetsuya Tokano (2005). Water on Mars and life : with 9 tables. Berlin: Springer. p. 6. ISBN 9783540206248.
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has generic name (help) - ^ Rubin, Alan E.; Warren, Paul H.; Greenwood, James P.; Verish, Robert S.; Leshin, Laurie A.; Hervig, Richard L.; Clayton, Robert N.; Mayeda, Toshiko K. (1 November 2000). "Los Angeles: The most differentiated basaltic martian meteorite". Geology. 28 (11): 1011–1014. doi:10.1130/0091-7613(2000)028<1011:latmdb>2.3.co;2. ISSN 0091-7613.
External links[]
- Meteorites by name
- Achondrite meteorites
- Wikipedia infobox meteorite articles without coordinates
- Martian meteorites