The Atlantic Ocean seafloor has what appear to be "stretch marks" or creases branching out horizontally from the center of the ocean. The seafloor deepens (generally) from both sides up to 20,000 ft. until a central upward ridge is formed (Mid-Atlantic Ridge), running up the middle of the ocean between the western and eastern continents. In some places this ridge is only a few thousand feet deep. The Atlantic also has a few deep basins scattered throughout that are substantially deeper than the surrounding ocean.
Some researchers report core samples taken of the seafloor crust show the age of the seafloor increasing as you travel away from the coastline, suggesting the seafloor has expanded outward from the central ridge over time.
That it is a topgraphical and the features are a ocean floor.
What causes ocean floor features to form
The prominent sea floor feature found in the central Atlantic ocean is called the Mid Atlantic Ridge.
Plate tectonics and (river) erosion are responsible for the formation of ocean-floor features.
Plate tectonics and (river) erosion are responsible for the formation of ocean-floor features.
Oceanic ridge
Mountains
The floor of the ocean is called the seabed or ocean floor. It is made up of different features such as abyssal plains, trenches, ridges, and volcanoes.
Abyssal plains are important in features of the ocean floor because they are geological elements of oceanic basins. Abyssal plains can slope or lay flat against the ocean floor.
turbidity currents deposit sediments on the ocean floor
ocean water chemistry, currents, ocean life, and the shape of the ocean floor
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