Also, geology isn’t just sedimentation. Erosion, from various causes, removes layers of rock, sometimes sweeping away thousands of feet of sediment. Our mining industry has removed rock on the scale of a significant meteor bombardment. Future geologists might ask “why is there a massive stratigraphic absence here?” as often as they ask “why is there a weird sedimentary layer here?”
Also movement of large amounts of rocks from one area to another. Our concrete momuments to arrogance and excess, even when theyre rubble, will be hard to explain without the human element.
