Not exact matches
The spherules, known as microtektites, are droplets
of molten rock that were melted and thrown
out of the impact
crater by the
energy of the projectile, or condensed from rock that was vaporized upon impact.
One
of the landing sites, Jezero
crater, contains a paleo - delta, where proponents believe organic matter (if ever present on Mars) could have been concentrated
out on the toe (low
energy) part
of the delta, which emptied into an ancient lake.
When an icy impact occurred, the impactor's kinetic
energy became heat
energy, instantly melted some ice, gouged
out a
crater, and kicked up into Mars» thin atmosphere large amounts
of debris mixed with water (liquid, ice crystals, and vapor)-- and complex organic molecules that obviously came recently from life.127 Then, the dirt and salt - water mixture settled back to the surface in vast layers
of thin sheets — strata — especially around the
crater.