That’s definitly the first time I’ve see how a still works. LOL!
You’re probably right about the salt and other debris super-heated by the impact area. Would be even worse for a mantle buster.
"Scaling laws place the depth of the transient cavity at 35-40 km below the transient crater rim for the Chicxulub impact crater (Morgan et al., 1997). This depth suggests that deformation from the impact may have reached the base of the crust,..."