When the magma hardens it forms new oceanic crust that becomes welded to the original crust.
Sea floor is created at spreading ridges and destroyed.
Sea floor spreading has to do with the crust forming at ocean ridges and being destroyed at deep sea trenches.
Sea floor is created at spreading ridges and destroyed.
Magma is pushed up through cracks in the crust along the mid ocean ridge.
It was created on the sea floor.
Rifting occurs at oceanic spreading ridges but not within continents because continents are so thick and strong.
Flow of liquid iron alloy in earth s molten outer core.
Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor.
Spreading rate is the rate at which an ocean basin widens due to seafloor spreading.
This boundary is connected with sea floor spreading.
New seafloor is formed at ridges and destroyed at trenches.
Earth s magnetic field is created primarily by the.
Sea floor spreading occurs when the sea floor spreads apart along divergent boundaries and forms the mid ocean ridge.
Start studying sea floor spreading.
The andes mountains are a famous example of.
Spreading rates determine if the ridge is fast intermediate or slow.
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.
A mid ocean ridge mor is a seafloor mountain system formed by plate tectonics it typically has a depth of 2 600 meters 8 500 ft and rises about two kilometers above the deepest portion of an ocean basin this feature is where seafloor spreading takes place along a divergent plate boundary the rate of seafloor spreading determines the morphology of the crest of the mid ocean ridge and its.
East africa and the basin and the range province of the united states are example of a.
At the spreading center liquid rock called basaltic magma rises from the earth s mantle as it upwells beneath the spreading axis.
In 1962 hess proposed that the seafloor was created at mid ocean ridges spreading in both directions from the ridge system.
During the process of seafloor spreading.
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.
