Answer:
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Explanation:
Explanation:
As the two plates move away from each other in a divergent boundary, the magma from the mantle beneath rises to replace the void created. The magma then cools into a new crust. Before the magma cools, the iron minerals align themselves with the magnetic fields of the earth due to their ferromagnetic properties. These cause the rocks after they are cooled to seem to have bands.
Due to magnetic reversals of the earth's magnetic fields (i.e change in magnetic north and south poles) over several hundred thousand years, these bands will orient differently depending on the then earth magnetic polarity when the magma was cooling.
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Draining the oceans would show features such as mid-ocean ridges. These features would look like an extensive mountain range running down the spine of the ocean floor. This region marks the area where two oceanic tectonic plates are being pushed apart. Closer to land or the continents would be a gentle shelf that gradually deepens as one moves away from the coastline. This relatively gentle plain would then make a steep drop off down to an extensive plain stretching towards ocean ridges. The ocean floor also supports lone mountain structures, canyons and chasms.
