Plate Tectonics

By IS_YOU_SWAGGY

  • Abraham Ortelius

    1596 Abraham Ortelius was the one who came up with the continental drift theory. His evidence was that some parts of the world like: The Americas, Eurasia, and Africa fit together like a jig-saw puzzle.

  • Nicolas Steno

    1683 Nicolas Steno's law of superposition was that each layer of rock is older than the layer above it.

  • James Hutton

    1785 James Hutton used Steno's law of superposition. It compares rock layers to rocks above and below the rock.

  • Alfred Wegner

    1880 Alfred Wegner was the first to introduce the theory of continental drift to the world. His idea was rejected because of missing evidence until 1950 when enough evidence was found to support his theory.

  • Alfred Wegener

    1912 Alfred Wegener while browsing the university library one day Alfred came across a scientific paper that listed fossils of identical plants and animals found on oppisite sides of the atlantic ocean.Fasinated by this information , Wegener began to look for, and find, more cases of similar organisms seperated by great oceans. The continents fit together like a jig-saw puzzle.

  • Arthur Holmes

    1929 ARthur Holmes theory is that the mantle goes under themal convection.

  • Harry Hess

    1962 Harry Hess sea floor spreading theory evidence in 1962. This led to his discovery of submerged and curiously flat-top mountains.

  • Dan McKenzie

    1968 Dan McKenzie's theory is that the lithosphere is divided into a few dozen plates that move across the earth's surface relative to each other.