Bacolor Crater Ejecta, as seen by HiRISE. Scale bar is 1000 meters long.
The crater shows a double layer of ejecta. The inner layer came first. The impact's heat vaporized the ground and of course any ice where the meteorite struck. Shock waves spread outward from the impact point, smashing rocks and heaving the fragments skyward, along with steam and other hot gases. As the shock wave dug deeper, it excavated a bowl-shaped hole in the ground. A thick, probably hot, slurry of mud, water vapor, and rock fragments flew away from the growing cavity and fell to the ground, making the inner ejecta apron. The innermost portion of this layer covered the ground thickly and, near the crater rim, shows numerous signs of having flowed at least sluggishly.
- Casius quadrangle
- Impact crater
- Impact event
- List of craters on Mars
- Ore resources on Mars
- Planetary nomenclature
Original source: https://en.wikipedia.org/wiki/ Bacolor (crater). Read more