Los Angeles (meteorite)
| Los Angeles Meteorite | |
|---|---|
|
Los Angeles 001: Mars meteorite stone (shergottite) weighing 452.6 grams. 1 cm square cube for scale | |
| 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 002: Mars meteorite stone (shergottite) weighing 245.4 grams. 1 cm square cube for scale | |
The Los Angeles Meteorite is a martian meteorite fallen in California's Mohave 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] Vernish 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 QUE 94201 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.
- ↑ 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)282.0.CO;2. ISSN 0091-7613.