What are the three major pieces of evidence that Wegener used to support the continental drift theory?
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.
Which evidence best supports continental drift?
Fossil Evidence One type of evidence that strongly supported the Theory of Continental Drift is the fossil record. Fossils of similar types of plants and animals in rocks of a similar age have been found on the shores of different continents, suggesting that the continents were once joined.
What are the three types of continental drift?
There are three kinds of plate tectonic boundaries: divergent, convergent, and transform plate boundaries.
What happens when two continents collide and one doesn’t dive underneath the other?
Continental and Oceanic Plates Continental plates typically do not subduct beneath oceanic plates because of how thick and buoyant they are. Instead, continental plates typically bend, break and crumple, creating folds, thick creases and mountain ranges like the Andes, Swiss Alps and the Himalayas.
Why there is no subduction when two continental plates collide?
When two continental plates collide neither plate can be subducted due to their high bouyancy. With this type of collision there are no features such as a subduction zone, trench or acretionary wedge. After collision the oceanic lithosphere breaks off and sinks into the mantle.
What forms when two continental plates pull apart?
It happens when two tectonic plates pull apart and rock from the mantle rises up through the opening to form new surface rock when it cools. It happens at the start of a new ocean and continues at the mid-ocean ridge while the ocean is opening.
What is produced in the convergence of two continental plate?
When two continental plates converge, they smash together and create mountains. The amazing Himalaya Mountains are the result of this type of convergent plate boundary. The Appalachian Mountains resulted from ancient convergence when Pangaea came together.
What is it called when plates pull apart?
The movement of the plates creates three types of tectonic boundaries: convergent, where plates move into one another; divergent, where plates move apart; and transform, where plates move sideways in relation to each other.
What landforms are created by convergent boundaries?
Deep ocean trenches, volcanoes, island arcs, submarine mountain ranges, and fault lines are examples of features that can form along plate tectonic boundaries. Volcanoes are one kind of feature that forms along convergent plate boundaries, where two tectonic plates collide and one moves beneath the other.