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May 22, 1570
Arthur Ortelius
was a cartographer and saw that continents fit together like puzzle pieces. created his first atlas in 1570 -
Alfred Wegener
Proposed that all the continents used to be together as one supergiant continent, he backed his work with fossil clues, climate clues, and rock clues, but was denied overall. He didn't show the force that moved continents or how fast they moved. -
Pangaea/ Continental Drift
Alfred Wegener -
Harry Hess
molten magma rises between plates, and as the magma cools it expands and pushes the plates -
Stanley Keith Runcorn
His studies on paleomagnetic studies of Europe's and America's relative motions brought back the idea of continental drift -
Convection Currents Theory
Arthur Holmes -
Sea-Floor Spreading
Drummond Hoyle Matthews, Fredrick J. Vine, Lawrence Morley -
Fredrick J. Vine
Found symmetrical patterns of magnetic reversals in the basalt rocks on either side of a continent
