Subduction zones occur at.
Subduction of the ocean floor takes place a.
In what boundary do 2 plates pull apart.
Ocean floor fall into trenches and also where subduction takes place.
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.
Spreading rates determine if the ridge is fast intermediate or slow.
Subduction occurs here due to the ocean floor being of denser rock.
Earthquakes take place primarily on fault lines.
Takes place at underwater canyons and it allows the ocean floor to seem wider.
Subduction of the ocean floor takes place at a.
Rate of seafloor spreading.
In fact this area has seen the eight most powerful earthquakes ever recorded and is home to over 75 percent of the world s active and dormant volcanoes.
The process that powers plate tectonics a.
Which of these parts of the deep ocean floor is flat and nearly featureless.
Two plates collide with each other at.
The rate at which new oceanic lithosphere is added to each tectonic plate on either side of a mid ocean ridge is the spreading half rate and is equal to half of the spreading rate.
Regions where this process occurs are known as subduction zones rates of subduction are typically measured in centimeters per year with the average rate of convergence being.
Marine magnetic anomalies can be used to estimate the.
Globally the rate of seafloor spreading takes place at the same rate as.
The process of the ocean floor sinking beneath ocean trenches and into the mantle.
Made of rocks such as granite.
Allows part of the ocean floor to sink into the mantle.
For example there is a major fault line off the western coast of south america.
How do moving plates change earth s crust.
A device the uses sound waves to measure the distance to an object.
Subduction of the ocean floor takes place at trenches.
Slow movements of mantle rock that transfers heat in the mantle.
In what areas does the subduction of the ocean floor take place.
Sea floor spreading takes place at the mid ocean ridge where two oceanic plates are spreading pulling apart from one another.
Spreading rate is the rate at which an ocean basin widens due to seafloor spreading.
The process that powers plate tectonics is.
