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- The SNC Meteorites Are From Mars The thirteen SNC meteorites are all igneous rocks, either basalts or basaltic cumulates. They are inferred to be from Mars, based on direct comparison with martian materials and on consistency with inferences about Mars.
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Several scientists suggested these characteristics implied the origin of SNC meteorites from a relatively large parent body, possibly Mars. [6] [7] Then in 1983, various trapped gases were reported in impact-formed glass of the EET79001 shergottite, gases which closely resembled those in the Martian atmosphere as analyzed by Viking. [8]
Oct 1, 2000 · If the SNC meteorites are not from Mars, they are from a planet-sized body in our solar system that is identical to Mars in all these aspects. It is conceivable, however remotely, that such an object does exist among the asteroids.
- Allan H. Treiman, James D. Gleason, Donald D. Bogard
- 2000
The SNC meteorites (named after Shergotty, Nakhla, and Chasigny meteorites) have distinct chemical compositions requiring that they come from a rather evolved planet, probably Mars (Marti et al. 1995), and if so, these are the only direct samples we have of the Martian surface.
Jul 12, 2022 · young SNC meteorites may have come from the planet Mars (Walker et al. 1979, Nyquist et al. 1979).
A large body of evidence strongly suggests that the shergottite, nakhlite, and Chassigny (SNC) meteorites are from Mars. Various mechanisms for the ejection of large rocks at martian escape velocity (5 kilometers per second) have been investigated, but none has proved wholly satisfactory.
Nov 1, 1994 · What we have learned about Mars from SNC meteorites The SNC meteorites are thought to be igneous martian rocks, based on their young crystallization ages and a close match between the composition of gases implanted in them during shock and the atmosphere of Mars.
Jun 19, 2013 · That the SNC meteorites originated on Mars became apparent from their young crystallization ages 4 and fractionated rare-earth patterns 8, 9, both indicating a planet-sized parent body, and...
