Tectonic movement
Seafloor Spreading
The movement of tectonic plates is part of the process known as plate tectonics.
Mid Ocean ridges separate the plates and create new seafloor. Places where plates converge and disappear into the abyss are called trenches. The Marianas Trench is the deepest trench in the world.
The theory of plate tectonics says that the Earth's lithosphere is divided into "plates" that are determined by overall movement.The theory combines ideas on seafloor spreading and continental drift
Contintal plates
No, seafloor spreading does not hold the plates in place. Seafloor spreading is a process that occurs at mid-ocean ridges where new oceanic crust is formed and spreads apart. It is driven by the movement of tectonic plates, which are actually responsible for holding the seafloor in place.
The movement of continents is called the theory of continental drift. It is based upon the theory that the contininents are floating are large tectonic plates that are moved by seafloor spreading which is the same process that creates new land.
Movement of tectonic plates can cause seafloor spreading and reversal of Earth's magnetic field, which can affect the organisms that are not adapted to the geological enviroment.
The driving force for seafloor spreading is the movement of tectonic plates. As magma rises from the mantle to the surface at mid-ocean ridges, it creates new oceanic crust which pushes the existing plates apart, causing seafloor spreading. This process is part of the larger theory of plate tectonics.
two seafloor plates and a seafloor plate and continental plate
Seafloor spreading occurs when two tectonic plates move further away from each at mid-ocean ridges. In these ridges new crust is formed through volcanic activity and thus expanding the seafloor.
Seafloor Spreading
Seafloor spreading
The region where the seafloor is forced beneath the continental plate is called a subduction zone. When the seafloor descends down it produces a deep-ocean trench.
Subduction zones are where the seafloor is forced under continental plates.
seafloor spreading occurs when oceans widen and continents separate.convergent plate movements occurs when two plates collide toward each other.divergent plate movement is the moving away of plates from each other.transform plate movement occurs when two plates are sliding horizontally with each other.:)
Mid-ocean ridges and seafloor spreading are characteristics of oceanic diverging plates, plates that are moving away from each other.