The Nakhla meteorite was later identified as belonging to an exclusive group of objects, known as SNC meteorites, a subgroup of which is the nakhlites, which are believed to have come from the surface of Mars.
The igneous rock, rich in augite, of which the Nakhla meteorite is largely composed has been dated at 1.3 billion years. However, based on the age of clay found inside the specimens examined, it is thought that this rock was exposed to water about 600 million years ago. Through analysis of the rock's crystalization ages and crater-count chronology of different regions on Mars, the Nakhla meteorite most likely formed in the ancient volcanic regions of Tharsis, Elysium, or Syrtis Major Planum.
Was the dog story a myth?According to a local inhabitant at the time:
The fearful column which appeared in the sky at Denshal was substantial. The terrific noise it emitted was an explosion which made it erupt several fragments of volcanic materials. These curious fragments, falling to earth, buried themselves into the sand to the depth of about one meter. One of them fell on a dog ... leaving it like ashes in a moment.Whether a dog was hit or not, it seems highly unlikely that it could have been reduced to ashes. Meteorites are often cool by the time they fall to Earth and certainly not hot enough to cause such extreme incineration.
Evidence for life?
Archived newsMeteorite salt clue to Mars oceans (Jun 24, 2000)
Related categories MARS TOPICS
METEORS AND METEORITES
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