Plate Tectonics History
Name of last known supercontinent
What is Pangea?
Wegener's hypothesis of how the continents moved
What is Continental Drift?
One plate slides under another
What is subduction zone?
Temperature as you go deeper in the Earth will..
What is increase?
Mountains form from
What is collision of plates?
German Researcher that created the Theory of Plate Tectonics
Who is Alfred Wegener?
Continental Drift spatial scale in geological time
What is a large spatial scale?
This boundary created the Mid Atlantic ridge
What is a divergent boundary?
Geologist that believed the seafloor recycled itself
Who is Harry Hess?
What are divergent boundaries?
Plate tectonics is a geoscience process that occurs over a large spatial scale by
What is Continental Drift?
About the width of your fingernail.
What is the distance the continents drift in a year?
Convergent, divergent, and transform.
What are the 3 main types of plate boundaries?
During sea floor spreading, molten material rises up from the mantle at
What is the mid ocean ridges?
Boundaries that slide past each other
What are transform boundaries?
Area around the pacific plate where boundaries form is called...
What is the Ring of Fire?
3 pieces of evidence for the hypothesis of continental drift.
What are matching fossils, rock formations or mountain belts, and coastlines?
Associated with transform boundaries
What are Earthquakes?
The idea that plates spread when magma pushes through the crust under oceans, pushes plates apart, and cools to become new seafloor.
What is seafloor spreading?
A location where two tectonic plates collide
What is convergent boundary?
The part of the Earth that plate tectonics floats on.
What is the asthenosphere?
Alfred Wegner's theory of Continental Drift not immediately accepted by scientists
What is there was no evidence or mechanism to prove it?
This land formation occurs at a divergent continental/ continental boundary
What is a rift valley?
Seafloor spreading is a like a conveyor belt because
What is the magma pours out of the trench, cools, and subducts at the other edge of the plate and repeats in a cycle?
Islands are created along a subduction zone as oceanic crust is forced back down in to the mantle.
What is a volcanic arc?