The «bolide» hit Earth here 1.85 billion years ago and excavated a deep basin, which was filled with melted target rocks and, later, with jumbled mixed rocks full of tiny volcanic fragments. (sciencedaily.com)
The ChemCam mast unit will fire seven - nanosecond laser pulses through a small focusing telescope to vaporize chunks from target rocks up to 30 feet away, according to a NASA statement. (scientificamerican.com)
Moreover, mass flow behind the impact shock front could have contributed to the compaction of the Quaternary loose, highly porous and water - saturated target rocks. (impact-structures.com)