> The quartz shocking was a bit weak as it wasn't clear how they dated it to the same time as the theoretical blast They found it in the rubble layer they are

> The quartz shocking was a bit weak as it wasn't clear how they dated it to the same time as the theoretical blast They found it in the rubble layer they are studying? How would it get there if it wasn't produced at the same time as the rest of the stuff in that layer? For things in a sediment layer to not be of equal age, you need some sort of transport mechanism to move the quartz there from some earlier or later period, and there's not much convective motion in dirt.