What was the plate tectonic theory's evidence?

Answer 1

Plate Tectonics is supported by observations of similar geographic formations in South America and Africa, where the two continents look like they might fit together, and similar matchings elsewhere in the world. most importantly, however, plate tectonics is supported by the fact that we have actually measured the movement of the plates on an annual basis.

Answer 2

Until the mid twentieth century, the evidence consisted mostly of fossil similarities in areas that were considered to have been joined geographically earlier in Earth's history. No mechanism had been revealed, however, to explain why continents would move apart. In the 1950's, a scientific expedition was made to map the ocean floor. The exploration revealed a more or less continuous seismically active ridge in the middle of the Atlantic Ocean. Later, it was discovered, with the use of a magnetometer mounted in an airplane, that rock on either side of the ridge was chronologically a mirror image of the rock on the other side. This was due to the magnetic orientation of the Earth, which can abruptly change, being recorded in the rock at the time of its formation. This creation of new crust at the mic-ocean ridges was the mechanism for plate movement that had previously been undiscovered, leading to the understanding of lithospheric plate tectonics that we know today.

Answer 3

The evidence for plate tectonics includes the fit of the continents like a jigsaw puzzle, matching geologic formations across continents, the distribution of fossils across different landmasses, and the presence of mid-ocean ridges and deep-sea trenches that support the movement of plates. Additionally, studies of earthquakes, volcanoes, and magnetic patterns on the ocean floor further support the theory.

Answer 4

There is so much evidence that has been used to support the theory of plate tectonics. The discovery of similar rock masses and the shapes taken by the continents are the main proofs used.

Answer 5

the same fossils that were found in south america were also found in africa

Answer 6

fossils of the same species have been found on two different continents

Answer 7

The spreading of the sea floor.

Answer 8

Try the San Andreas fault.

Answer 9

no