What were the two major flaws of continental drift?
Drawbacks of Continental Drift Theory Forces like buoyancy, tidal currents and gravity are too weak to be able to move continents. Modern theories (Plate Tectonics) accept the existence of Pangaea and related landmasses but give a very different explanation to the causes of drift.
What is the relationship between continental drift and plate tectonics quizlet?
theory of continental drift states that the world was made up of a single continent. The theory of plate-tectonics, on the other hand, states that earth’s surface is broken into numbers of shifting plates or slabs.
What is the relationship between plate tectonics and continental drift?
Plate tectonics is the theory that Earth’s land masses are in constant motion. The realization that Earth’s land masses move was first proposed by Alfred Wegener, which he called continental drift.
What are four pieces of evidence for continental drift?
The evidence for continental drift included the fit of the continents; the distribution of ancient fossils, rocks, and mountain ranges; and the locations of ancient climatic zones.
What is the reason for Continental Drift quizlet?
a current caused by the rising of heated fluid and sinking of cooled fluid. The earth’s crust and upper mantle are made of huge plates slowly drifting because of convection currents in the mantle. The mid ocean ridge is a crack in the earth’s crust where molten rock rises and spreads new sea floor.
What was continental drift caused by?
The causes of continental drift are perfectly explained by the plate tectonic theory. The earth’s outer shell is composed of plates that move a little bit every year. Heat coming from the interior of the earth triggers this movement to occur through convection currents inside the mantle.
What is the continental drift theory quizlet?
Describe the theory of continental drift. The hypothesis that states that the continents once formed a single landmass, broke up, and drifted to their present locations. The theory that the Earth’s lithosphere is divided into tectonic plates that move around on top of the asthenosphere.
What is the definition for continental drift?
Continental drift, large-scale horizontal movements of continents relative to one another and to the ocean basins during one or more episodes of geologic time. This concept was an important precursor to the development of the theory of plate tectonics, which incorporates it.
Which is the best definition for continental drift?
: a slow movement of the continents on a deep-seated viscous zone within the earth — compare plate tectonics.