rising molten magma
Geothermal Drift.
thermal convection
the primary force that causes the seaffloor to spread and contienents to drift
The primary force driving seafloor spreading and continental drift is mantle convection. Heat from Earth's core causes the mantle to circulate, creating convection currents that move tectonic plates, leading to the spreading of the seafloor and movement of continents.
no magma riseing thur gaps in plate causes them to move called seafloor spread
The primary force that causes the seafloor to spread and continents to drift is plate tectonics. This process is driven by the movement of molten rock in the Earth's mantle, which generates forces that push apart tectonic plates, leading to seafloor spreading and continental drift.
In the middle of the ocean is a rift where the ocean floor squeezes out lava and pushes the ocean plates apart.
Some other part of the crust must be "disappearing" (subduction).
Seafloor spreading occurs along mid-ocean ridges. Mid-ocean ridges are large mountain ranges on the ocean floor. The shifting in the rock causes the seafloor to spread and allows magma to bubble and form more mountains on the ocean floor.
The movement that causes continents to grow outward is called seafloor spreading. This occurs at mid-ocean ridges where tectonic plates diverge, allowing magma to come up and create new seafloor. As new seafloor forms, it pushes the continents on either side further apart, leading to the growth of the continents.
Tectonic plate movements or plate shifting.
Paleomagnetic patterns on the seafloor are caused by the movement of tectonic plates. As the seafloor spreads at mid-ocean ridges, molten rock solidifies to form new crust containing minerals aligned with the Earth's magnetic field. Over time, Earth's magnetic field reverses, leaving a record of these changes in the seafloor's magnetic stripes.