[sxp]

Reading some of the other articles on that site, it's unclear how scientifically sound the original article is. A quick Google search gives different radiocarbon dating for the landslide https://www.sciencedirect.com/science/article/abs/pii/S01695...

I don't know enough about the event to figure out the likelihood of either hypothesis, but this other data point is something to keep in mind.

[LargoLasskhyfv]

How does one reliably carbon-date a site which got much extraterrestrial matter mixed into it? Whith probably different carbonisotope decay rate onsets/offsets? Because from 'not around here'?