What two plates need to interact for a chain of volcanoes to form?
Continental and Oceanic
When two plates pull away from each other
Divergent Boundary
What are the 3 types of plate boundaries?
Convergent, Divergent and Transform
An oceanic crust and a continental crust collide, which plate will be sub-ducted and why?
The oceanic crust will subduct under the continental crust because it is more dense.
There is a chain of volcanoes off the coast of Alaska, earthquakes are frequent in this area. What type of boundary is this on? What type of crusts are involved?
Convergent boundary, oceanic and continental crusts
What is subduction?
When two plates collide and one goes under the other
When two plates slide past each other what geological event occurs?
Mountains
Earthquakes
Oceanic Trench
Volcanoes
When two continental plates pull apart what geologic event or structure occurs?
Continental Rift
Mid-ocean ridge
Volcanoes
Oceanic Trench
At what boundary would you expect to see frequent earthquakes?
Transform Boundary
When two plates collide into each other
Convergent Boundary
What is seafloor spreading?
When two oceanic plates pull apart, magma rises up and creates new crust. This happens over and over again causing the seafloor to get wider.
What is the theory of plate tectonics?
The theory that parts of the crust and upper mantle are broken into sections that can move and interact with each other to cause geologic events and structures.
At what type of boundary would you expect to find a mid-ocean ridge?
Divergent Boundary
What two plates need to interact for a mid-ocean ridge to form?
Oceanic and Oceanic
When two oceanic plates pull apart, what geological event or structure occurs?
mid-ocean ridge
chain of volcanoes
continental rift
earthquakes
What are the two types of crust?
Oceanic and Continental
A long time ago all the continents were connected, what was the name of this supercontinent?
Pangea
Who was the first person to introduce the idea of plate tectonics?
Isaac Newton
Gregor Mendal
Alfred Wegener
Charles Darwin
What two plates need to interact for a mountains to form?
Continental and Continental
At what type of boundary would you expect to find mountains?
Convergent Boundary
Two oceanic plates collide, one slides under the other. What geologic event would this cause?
Continental Rift
Chain of Volcanoes
Oceanic Trench
Mid-Ocean Ridge
When two plates slide past each other
Transform Boundary
When two continental crusts collide what geological event forms?
Trench
Ridge
Mountains
Volcanoes
Your experience on this site will be improved by allowing cookies.