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The Clastic sedimentary rock is a rock made out of rock particles so if these rock particles float to the bottom of water such as an ocean or lake and will settle there. Hope this answered your question!! xD

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11y ago
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12y ago

The rock on the ocean floor is from a mid-ocean ridge that runs through the Earth. It takes hot molten material and pushes it up through the ridge. It cools quickly when it hits the cold water and from there, spreads out. This process is called sea-floor spreading! :)

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12y ago

Classically, it is Basalt, however it could be any 'Basic' or 'Mafic' rock similar to Basalt. Basalt is most common because it is formed due to rapid cooling, which is classically the case on the ocean floor with tonnes of water carrying the heat away. This forms small crystals, which define Basalt.

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9y ago

Depends. As it can vary.

In areas of where there is volcanic activity, new sea floor is "built" or extruded from igneous materials (eg. volcanic islands and the mid-Atlanic ridge).

In other parts of the world the sea floor is sedementary in nature, through being built up from eroded river deposits.

And of course there are areas where the two types meet and the origin is metamorphic.

it should also be noted that erosion takes place in the ocean as well, so that the erosion of one type of rock can expose a different type of rock below it.

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14y ago

Most of the oceanic plates are comprised of the igneous rock basalt with a depositional sedimentary rock veneer.

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13y ago

The oceanic crust is predominantly basaltic rock with a varying thickness of overlying sediments.

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12y ago

Solidification of magma on the ocean floor..

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Q: What rock makes the sea floor?
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