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by mordymoop
789 days ago
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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?” |
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