Shergotty meteorite
| Shergotty meteorite | |
|---|---|
|
Image of the meteorite. | |
| Type | Achondrite |
| Class | Martian meteorite |
| Group | Shergottite |
| Parent body | Mars |
| Country | India |
| Region | Shergotty, Gaya district, Bihar |
| Fall date | 1865-08-24 |
| TKW | 5-kilogram (11 lb) |
The Shergotty meteorite is the first example of the shergottite Mars meteorite family. It was a 5-kilogram (11 lb) Martian meteorite which fell to Earth at Shergotty (now Sherghati), in the Gaya district, Bihar, India on 25 August 1865, and was retrieved by witnesses almost immediately.[1] This meteorite is relatively young; radiometric dating indicates that it solidified from a volcanic magma about 4.1 billion years ago.[2] It is composed mostly of pyroxene and is thought to have undergone preterrestrial aqueous alteration for several centuries. Certain features within its interior are suggestive of being remnants of biofilm and their associated microbial communities.[3]
See also
- ALH84001 meteorite
- Glossary of meteoritics
- Life on Mars
- List of meteorites on Mars
- Nakhla meteorite
- NWA 7034 meteorite
- Yamato 000593 meteorite
References
- ↑ Baalke, Ron. "Shergotty Meteorite". JPL. NASA.
- ↑ Bouvier, A.; et al. (2009). "Martian meteorite chronology and the evolution of the interior of Mars". Earth and Planetary Science Letters. 280: 285–295. Bibcode:2009E&PSL.280..285B. doi:10.1016/j.epsl.2009.01.042.
- ↑ Gibson Jr., E. K.; Westall, F.; McKay, D. S.; Thomas-Keprta, K.; Wentworth, S.; Romanek, C. S. "Evidence for ancient Martian life" (PDF). Johnson Space Center. Houston Texas: NASA.
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Coordinates: 24°34′26.32″N 84°47′35.4″E / 24.5739778°N 84.793167°E
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