A big pile of basalt is formed. In the mid Atlantic ridge basalt is constantly coming up and becoming the new ocean floor this is called a spreading center because pressure pushes the earths crust towards America, Africa and Europe where it is subducted, which means it goes back to where it came from as one plate(crust) slides under the other. There, in the dept the crust remelts and is eventually recycled back through a volcano to become solid earth again, this is termed the rock cycle.
Th water escapes through cracks in the ocean floor called hydrothermal vents.
The location where lava pours out of cracks in the ocean floor is known as a mid-ocean ridge or a spreading center. This is where tectonic plates move apart, allowing magma to rise from the mantle and create new oceanic crust.
Extrusive igneous rock- Sometimes lava erupts and flows from long cracks in the earths crust called fissures. Lava flows from fissures on the ocean floor at places where tension is causing the ocean to be pulled apart. This lava cools to form new ocean floor. Hope it helps.
Strips of ocean-floor basalt record the polarity of earth's magnetic field at the time the rock formed. These strips form a pattern that is the same on both sides of the mid-ocean ridge. the pattern shows that ocean floor forms along mid-ocean ridges and then moves away from the ridge.
Seafloor spreading is the geologic process that forms new crust on the ocean floor. This occurs at mid-ocean ridges, where tectonic plates move apart and magma rises to the surface, solidifying to form new oceanic crust.
Heat as well as lava can seep from cracks in the ocean floor.
The mid-ocean-ridge.
a hydrothermal vent
Th water escapes through cracks in the ocean floor called hydrothermal vents.
huge cracks in the ocean floor are called trenches.
Ocean Crust.
The location where lava pours out of cracks in the ocean floor is known as a mid-ocean ridge or a spreading center. This is where tectonic plates move apart, allowing magma to rise from the mantle and create new oceanic crust.
push and a pull
Seawater seeps into the ocean floor through cracks in the crust
molten material and drilling samples
What causes ocean floor features to form
Rocks have a north and south pole. The sea floor was discovered to have different magnetic poles on cracks in the ocean floor.