Plate Tectonic Theories

  • Abraham Ortelius

    He was the first scientist to think that continents were once joined together before they drifted into their current position.
  • Alfred Wegener

    He was the first scientist to come up with the idea that that plate tectonics actually moved the continents into their current positions.
  • Arthur Holmes

    He was the person to believe that the Earth had implications of mantle convection, which have the crust above it move. He also came up with the idea that rocks had ages.
  • Harry Hess

    He suggested another reason that continental drift did once actually happen. He said that magma created new layers which caused the seafloor to spread.
  • Lawrence Morley

    He helped give more evidence to the theory of continental drift. He looked at the magnetic seafloor stripes in the ocean. There were symmetrical patterns in the seafloor.
  • Frederick J. Vine

    He helped give more evidence to the theory of continental drift. He looked at the magnetic seafloor stripes in the ocean. There were found to be symmetrical patterns in the seafloor.
  • Drummond Hoyle Matthews

    He helped give more evidence to the continental drift theory. He looked at the magnetic seafloor stripes in the ocean, and found that the patterns were symmetrical.
  • John Tuzo-Wilson

    He presented that the tectonic plates might move over fixed hotspots in the mantle, forming volcanic island chains like Hawaii. He also created the thought of transform faults (such as the San Andreas Fault)