alt Hacker NewsTrue, but even with that, the amount of siderophile elements like platinum and gold in the crust is much less than in the core of the Earth ("siderophile" means that at the contact between molten iron and molten silicate rock such elements go into the molten iron).
Without that impact, it is assumed that almost no platinum-group metals and gold would have remained in the crust.
> Without that impact, it is assumed that almost no platinum-group metals and gold would have remained in the crust.
Wow, its wild to think of a counterfactual world without gold. Would those metals have emerged to the crust from volcanism or is that material not sourced deeply enough?