Sea floor spreading occurs along mid ocean ridges, where new oceanic crust is created through volcanic activity and then slowly moves away from the ridge. The Mid Atlantic ridge separates the North American plate and Eurasian plate. It spreads 2-5 cm outwards every year and forms an ocean trench the size of the Grand canyon.
Sea floor spreading is a geologic process where the tectonic plates split apart from each other. The sea floor spreading process is the result of mantle convection. This is the slow movement of the Earth's mantle. Convection currents capture heat from the lower mantle and core to the lithosphere. Sea floor spreading occurs at divergent plate boundaries. As tectonic plates move slowly away from each other, heat from the mantle's convection currents make the crust more plastic and less dense. The dense substances rise up and often form mountains or high areas of the sea floor. Sea floor spreading helps explain the continental drift in the theory of plate tectonics.
Sea floor spreading is a geologic process where the tectonic plates split apart from each other. The sea floor spreading process is the result of mantle convection. This is the slow movement of the Earth's mantle. Convection currents capture heat from the lower mantle and core to the lithosphere. Sea floor spreading occurs at divergent plate boundaries. As tectonic plates move slowly away from each other, heat from the mantle's convection currents make the crust more plastic and less dense. The dense substances rise up and often form mountains or high areas of the sea floor. Sea floor spreading helps explain the continental drift in the theory of plate tectonics.