Continental Drift, unless you are looking for a technical term for something else. Actually, is it theory or is it reality?
The theory is Tectonics.
The continental drift theory, or the plate tectonic theory
The action of continents drifting apart from each other is called, "Continental Drift". It is no longer a theory, as it has been proven to be so. Of course, as certain continents move apart from each other, they also are moving closer to other continents.
Pangaea
The theory of Pangaea was that the continents were once together and then were drifted apart due to plate tectonics.
Continental drift.
The continental drift theory, or the plate tectonic theory
The theory of Pangaea is the theory that the Earth was once covered by one giant continent or land mass. The land mass supposedly started to break apart when the dinosaurs went extinct. The theory explains why different continents look like they are part of a jigsaw puzzle, and how the same type of fossil was found on to different continents. The theory also explains why our continents today are slowly drifting apart.
The action of continents drifting apart from each other is called, "Continental Drift". It is no longer a theory, as it has been proven to be so. Of course, as certain continents move apart from each other, they also are moving closer to other continents.
Pangaea
Continental Drift
The theory that explains the existence of a supercontinent called Pangaea is known as continental drift. According to this theory, proposed by Alfred Wegener in the early 20th century, the continents were once joined together in a single landmass and have since drifted apart over millions of years. Geological and fossil evidence, such as matching coastlines and similar plant and animal species on separate continents, support this theory.
The theory of Pangaea was that the continents were once together and then were drifted apart due to plate tectonics.
His theory is that all the continents were connected and made a super continent called Pangaea then eventually the moving of tectonic plates over the millions of years caused the continents moves apart.
Continental drift.
diverging boundaries
Tectonic plate movement.
Continental Drift.