Plate Tectonics. Earth back then…. Earth Now. Pangea. World used to be a “super continent’ PANGEA. Proof of Pangea. Fossil Evidence – only a few places in the world Fossils – Remains of skeletons preserved in rock seen in multiple continents; walk or swim?. Proof of Pangea.
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Any better explanation?
Upper mantle + crust = ????
Things to look for: Volcano types: Rift eruptions
Oceanic - Continental
Pushes up from subducted plate
Plates are level
Continental - Continental