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The seafloor spreading is best described as when Ocean basins grow wider as new oceanic crust forms at a divergent boundary.
What is a Seafloor spreading?
This refers to a geologic course in which the tectonic plates in the Lithosphere divided apart from each other creating new seafloor.
Hence, the spreading is best described as when Ocean basins grow wider as new oceanic crust forms at a divergent boundary.
Therefore, the Option D is correct.
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In divergent boundaries hot material rises, separating tectonic plates and creating new crust between them. D) Ocean basins grow wider as new oceanic crust forms at a divergent boundary.
What is the divergent boundary?
In Divergent boundaries, new crust is created by the molten materials rising from the mantle.
Two plates separate, and the stream of hot material creates a new seabed between them. It occurs as an expansion of the sea bottom.
As old plates get separated, the new and young crust instantaneously gets formed. The emerging mantle occupies the space left by the separation of the two plates.
This process occurs along with an underwater mountain range, known as the mid-oceanic ridge or divergent ridge.
The seafloor spreading is the process through which these tectonic plates separate from each other as a consequence of the rising mantle.
The correct option is D. Ocean basins grow wider as new oceanic crust forms at a divergent boundary.
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