What are the two sources of heat in the earth s mantle.
Subduction of the ocean floor takes place at.
Takes place at underwater canyons and it allows the ocean floor to seem wider.
The process of the ocean floor sinking beneath ocean trenches and into the mantle.
Earthquakes take place primarily on fault lines.
Subduction zones occur at.
A depression in the ocean floor where subduction takes place is called.
For example there is a major fault line off the western coast of south america.
Rate of seafloor spreading.
This place is known as a subduction zone.
Allows part of the ocean floor to sink into the mantle.
This sudden movement on the ocean floor results in displaced water which moves toward.
Subduction caused volcanism and earthquake activity occur frequently along the outer edges of the pacific ocean in an area known as the pacific ring of fire.
In what boundary do 2 plates pull apart.
Subduction occurs here due to the ocean floor being of denser rock.
Plate motions are the visible part of what process.
Sea floor spreading takes place at the mid ocean ridge where two oceanic plates are spreading pulling apart from one another.
The lower mantle b.
How do moving plates change earth s crust.
The deepest parts of the ocean floor are caused by plate tectonic subduction and occur where the sea floor sinks back into the mantle in a subduction zone.
Marine magnetic anomalies can be used to estimate the.
A device the uses sound waves to measure the distance to an object.
The process that powers plate tectonics a.
Ocean floor fall into trenches and also where subduction takes place.
Globally the rate of seafloor spreading takes place at the same rate as.
The place where subduction has occurred however does not result in the formation of mountains.
Subduction of the ocean floor takes place at a.
In what areas does the subduction of the ocean floor take place.
The subduction process is credited with being the single largest contributor behind the theory of plate tectonics.
Subduction of the ocean floor takes place at trenches.
