Along What Type Of Floor Boundry Does Seafloor Spreading Occur
Along what type of plate boundary does sea floor spreading occur.
Along what type of floor boundry does seafloor spreading occur. At which type of plate boundary does seafloor spreading occur. The following features are shown at example depths to scale though each feature has a considerable range at which it may occur. The mid atlantic ridge for instance separates the north american plate from the eurasian plate and the south american plate from the african plate the east pacific rise is a mid ocean ridge that runs through the eastern pacific ocean and separates the pacific plate from the north american. The 3 types of plate boundaries that occur is the spreading boundary fracture boundary and the colliding boundary.
Seafloor spreading is a process that occurs at mid ocean ridges. The plates making up the pacific ocean are experiencing subduction along many of their boundaries which causes the volcanic activity in what has been termed the ring of fire of the pacific ocean. B 2 to 4 feet year. Along what type of plate boundary does subduction occur.
The age of the sea floor also supports sea floor spreading. What feature of the ocean floor develops where the oceanic lithosphere bends downward and sinks into the mantle. Wikimedia commons has media related to sea floor spreading. Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor.
The discovery of such magnetic stripes provided powerful evidence that sea floor spreading occurs. As the magma is thrust up and hardens it forms new crust and the ocean floor on both sides of the mid ocean ridge move outward. This graphic shows several ocean floor features on a scale from 0 35 000 feet below sea level. A typical rate of seafloor spreading along the mid atlantic ridge is a 2 to 4 cm year.
So sea floor spreading occurs at a divergent boundary. Sea floor spreading occurs when the sea floor spreads apart along divergent boundaries and forms the mid ocean ridge. Where does seafloor spreading occur along relatively narrow areas at the crests of oceanic ridges. Magma is pushed up through cracks in the crust along the mid ocean ridge.
Seafloor spreading takes place at the boundaries of divergent plates whereby as the divergent tectonic plates move away from each other hot convectional currents from the mantle cause the lithosphere the ocean crust to become less dense ductile and brittle and therefore rise above the surrounding crust to form a submarine mountain. At divergent boundary there is a mid ocean ridge where the most recent material is still slightly lighter then the chilled product.