Thread:Phoenks/@comment-38397104-20191221040225/@comment-43828975-20191227193102

we are treating this wiping a continent off the map down to the planets mantle right?

If so then the dept of the crust would be twice the dept of the earth's crust because of your description.

So you get around 100km for the dept of the crust (Which will act as the height)

Also I just realized that theres no point in adding mount everest since this planet is most likely different.

So yeah you multiply base x height

you get 3,404,200,000km3