The Place Where New Ocean Floor Forms Is Called

Since the new oceanic basins are shallower than the old oceanic basins the total capacity of the world s ocean basins decreases during times of active sea floor spreading.

The place where new ocean floor forms is called.

The earth s outer crust the lithosphere is composed of a series of tectonic plates that move on a hot flowing mantle layer called the. Deep ocean trenches volcanoes island arcs submarine mountain ranges and fault lines are examples of features that can form along plate tectonic boundaries. Volcanic eruptions deposit cooled magma on the ocean floor. Oceanic crust is the uppermost layer of the oceanic portion of a tectonic plate it is composed of the upper oceanic crust with pillow lavas and a dike complex and the lower oceanic crust composed of troctolite gabbro and ultramafic cumulates.

Separated into two new genera these organisms are a type of xenophyophores that live on the ocean floor and form elaborate shell like exoskeletons called tests from the environment around them. Bathymetry the shape of the ocean floor is largely a result of a process called plate tectonics the outer rocky layer of the earth includes about a dozen large sections called tectonic plates that are arranged like a spherical jig saw puzzle floating on top of the earth s hot flowing mantle. During the opening of the atlantic ocean sea level was so high that a western interior seaway formed across north america from the gulf of mexico to the arctic ocean. Oceanic ridges occur along some of the plate margins.

The process by which new oceanic crust is created at mid ocean ridges as older crust moves away. Where this is the case the lithospheric plates separate and the upwelling mantle material forms new ocean floor along the trailing edges. Plate tectonics and the ocean floor. A depression in the ocean floor where subduction takes place is called.

The result is the formation of the supercontinent aurica. The theory of sea floor spreading explains why rocks of the ocean floor are youngest near the mid ocean ridge. New material forms on the ocean floor of the mid ocean ridge due to plate tectonics and volcanic activity. In this scenario the pan asian rift currently cutting through asia from west of india up to the arctic opens to form the new ocean.

The process called destroys old oceanic. Scientists say they are unsure about the fate of the two land masses and whether or not a new ocean will form but note that it will take tens of millions of years to find out.