Social Justice Cultist
We're talking metaphorically about actual mountains, right?My question is, what happens then? I'd imagine some bricks might be squashed into the ground (sand). In a real life scenario, I have no idea if the mountains are harder than the surface they are on. Would the brown lego bricks crumble as the ground wouldn't give way? Would it be like an exploding water balloon, but in this case,
There are basically 2 kinds of mountains.
More common on land are mountains that are scrunched and folded by tectonic forces; these are pretty much the same material as the surrounding terrain, just bunched up.
Less common (but obviously still widespread) on land and the dominant source of ocean topography are volcanoes, which are a mixed bag. Basalt, formed from the lava column and flows, is pretty tough stuff, so some volcanoes leave formations like Devil's Tower as surrounding terrain weathers away. Others are mostly just big ash piles which can, on the extreme end, be cataclysmically unstable (hi, Krakatoa! Bye, Krakatoa!).
I would postulate, in the Divine Foot scenario, tectonically derived mountains would collapse and spread out, leading to expanses of low-elevation but cracked and distressed terrain with a footprint vastly greater than the original mountain ranges.
Shield volcanoes and basalt columns might crunch down more, with the softer sedimentary rocks squishing up, around, and over at the edges, like when you drive the flat end of a spoon into soft ice cream. Cindercones would probably spray their ash outward over a lot of terrain, like when you punch a pile of sand, which would be devastating at first but produce highly fertile areas once they recover.