Well they were all underwater at one time. The base was below the sea. As the seas subsized and eroded, the last final shallow seas lapped the structures... so beach.
Consider that almost everywhere, all of these intersections of high peaks and columns have the same shallow slopes. Only a large unitary effect..the ocean/sea/water I believe could do it. And beaches are slow slopes.
Oh I see what you mean. But does that mean they were islands above the sea? Not clear this is the geological process behind this...
Well they were all underwater at one time. The base was below the sea. As the seas subsized and eroded, the last final shallow seas lapped the structures... so beach.
Consider that almost everywhere, all of these intersections of high peaks and columns have the same shallow slopes. Only a large unitary effect..the ocean/sea/water I believe could do it. And beaches are slow slopes.