Pangea wasn’t the first, and it won’t be the last. Take a look ahead at the shape of the world to come.
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That’s the story as you probably learned it — but it’s not the whole story. From our human viewpoint, the current world map seems a. But plate tectonics is a continuous process; even now we are undergoing long-term changes whose progress we cannot perceive — a cycle that plays out over hundreds of millions of years. There were supercontinents before Pangea; and unfathomable ages hence, there will likely be others.
Holmes’ insights inspired subsequent research among physicists, geologists and seismologists worldwide. By the late 1960s, mounting evidence had moved the consensus toward acceptance of the new science of plate tectonics. So swift and complete was this paradigm shift that some called it “In highly simplified terms, continental drift occurs because only a relatively small proportion of the Earth’s substance is solid matter.
The next decade saw American and South African researchers proposing an alternative arrangement called. Extrapolating from the gradual widening of the Atlantic, they envision the Pacific Ocean “closing” as the Americas drift westward, fusing with Australia, then pivot clockwise around to Siberia; Eurasia and Africa retain their current longitudinal position, but shift northward, with the whole mass circling around the North Pole. Antarctica remains a separate landmass..
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