What types of elements are forged immediately following the core failure in the explosion's shockwave and neutrino burst?

Answer

Elements heavier than iron, such as gold and uranium

The extreme conditions generated by the shockwave and the massive neutrino burst during the rebound allow for rapid nucleosynthesis (r-process), creating elements heavier than iron that cannot be formed through standard core fusion.

What types of elements are forged immediately following the core failure in the explosion's shockwave and neutrino burst?
Corestarmassive