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Shergotty meteorite

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] 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]

Shergotty meteorite
Shergotty meteorite.jpg
50 milligram fragment of the Shergotty meteorite
TypeAchondrite
ClassMartian meteorite
GroupShergottite
Parent bodyMars
CountryIndia
Regionbaan, Gaya district, Bihar
Fall date1865-08-24
TKW5-kilogram (11 lb)
Commons page Related media on Wikimedia Commons

See alsoEdit

ReferencesEdit

  1. ^ Baalke, Ron. "Shergotty Meteorite". JPL. NASA.
  2. ^ Bouvier, A.; et al. (2009). "Martian meteorite chronology and the evolution of the interior of Mars". Earth and Planetary Science Letters. 280 (1–4): 285–295. Bibcode:2009E&PSL.280..285B. doi:10.1016/j.epsl.2009.01.042.
  3. ^ Gibson Jr., E. K.; Westall, F.; McKay, D. S.; Thomas-Keprta, K.; Wentworth, S.; Romanek, C. S. (1999). "Evidence for ancient Martian life" (PDF). Johnson Space Center. Houston Texas: NASA: 6142. Bibcode:1999ficm.conf.6142G.

Coordinates: 24°34′26.32″N 84°47′35.4″E / 24.5739778°N 84.793167°E / 24.5739778; 84.793167