What happens at the mid-atlantic ridge?
At the mid-Atlantic ridge, where two tectonic plates are moving apart, new oceanic crust is created through a process called seafloor spreading. As the plates move away from each other, magma from the Earth's mantle rises to fill the gap and forms new oceanic crust on the seafloor. This process is continuous, meaning that the mid-Atlantic ridge is constantly producing new oceanic crust and expanding the ocean floor. The newly formed oceanic crust is hot and has a distinct magnetic signature, allowing scientists to track its movement and age. The mid-Atlantic ridge is also associated with frequent volcanic activity and hydrothermal vents, supporting diverse ecosystems reliant on chemical energy rather than sunlight.