Eli5: How have we not found the 10km wide asteroid which wiped out the dinosaurs? Shouldn’t we have at least found a crater?

Question

Eli5: How have we not found the 10km wide asteroid which wiped out the dinosaurs? Shouldn’t we have at least found a crater?

In: Earth Science

Answer 1

The asteroid was totally vaporized by the energy of the collision. It left a thin layer of iridium deposits across the entire planet which can be seen in the fossil record. We found the impact crater in the Gulf of Mexico just north of the Yucatan peninsula.

https://en.wikipedia.org/wiki/Cretaceous–Paleogene_boundary

https://en.wikipedia.org/wiki/Chicxulub_crater