Where does the earth’s crust come from, and how can there be new layers added on top of the earth isn’t getting bigger?

Question

Layers of crust from millions of years ago are in layers below the outermost crust, which would make sense if the earth was constantly growing in mass and size. Like in millions of years we will fossilize and structures will be buried but unless things just sink into the ground or there is mass added how do older layers of crust get underground?

In: 7

Answer 1

[deleted]