Isostasy In The Quran?
You’re referring to how mountains are created and whether they stop earthquakes or not. But the question should be do they help in achieving any kind of equilibrium or not: “… For example, under mountain ranges, the crust slumps or bows deeper into the upper mantle than where the land mass is thinner across continental plains. Somewhat akin to how icebergs float in seawater, with more of the mass of larger icebergs below the water than smaller ones, this bowing results in a balance of buoyant forces termed isostasy “. https://www.encyclopedia.com/earth-and-environment/geology-and-oceanography/geology-and-oceanography/isostasy
What was the point of God mentioning this to Arabs who probably didn’t know the 1+1 of geography of this level? In surah naba most of the things that are mentioned are things we can witness easily and directly- this doesn’t seem to be one of them