Plate Tectonics Flashcards
Definition of a Plate Tectonic
Plate tectonic is a theory and it tells us that the earth is made up of plates and there are moving
Defentition of a Continental Drift
Wegener’s continental drift hypothesis stated that the continents had once been joined to form a single supercontinent
Definition of a lithosphere
Earth’s outer layer - a cool rigid layer, 15km to 300km thick, that includes the crust and the uppermost part of the mantle. It is divided into huge pieces called tectonic plates
Definition of a Pangea
Pangaea or Pangea was a supercontinent that existed during the late Paleozoic and early Mesozoic eras. It formed approximately 300 million years ago and began to break apart after about 100 million years