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Basalt mainly.
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∙ 12y ago
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Is basalt common?
Basalts are as common as the formation of the Ocean floor. Basaltic rocks are ferromagnessian rocks and intrusive igneous rocks. This implies they are formed within the Earth's crust, and they make up the ocean floor. They are dark and dense rocks and occurs in large scale as M.O.R.B. (Mid-oceanic Ridge Basalt).
Explain how the ages of the rocks on the ocean floor support the theory of seafloor spreading?
Sea floor spreading, a theory thought up by Harry Hess in the late 1950s, was drawn up in relation to the differing ages of rocks which make up oceanic crust (ie the ocean floor). The ages of rock on the ocean floor support this theory because of the fact that the youngest rocks are found at the mid-oceanic ridges, where constructive plate margins are found. The oldest rocks are found at the fringes of the ocean-continent boundary. This supports the idea because it shows that when magma rises and cools at the boundary, and creates new rock. This rock is then fed in a conveyor belt-like method to the edges of the oceans, where they are then subducted under continental crust as a part of destructive plate margins. This means th oldest rock is found at these boundaries. Hope this helps :)
Where are the youngest rocks on the ocean floor typically found?
fault line
Where are the youngest rocks found on the seafloor?
Near fault lines, it is there that rocks are created by the rubbing or colliding of the tectonic plates. Rocks could also be made by volcanoes via the cooling of magma and lava. The closer to the fault line you are the newer the rock and the farther away you get the older the rock becomes.
What is the relationship between the age of rocks on the ocean floor and the distance from the Mid-Atlantic ridge?
The farther away the rocks are, the older they are. When the lava bubbles up from the ridge, the tectonic plates move outward. As the process repeates itself and new lava comes up, the rocks are pushed farther and father away. As a result, the closest rocks are the newest, and the farthest rocks are the oldest!
Is there rocks in the ocean?
Yes, because they make up the ocean sea floor.
Is ocean floor smooth?
The ocean floor is not smooth.The ocean floor is made up of rocks, ledges and ditches.
What is an ocean floor?
broken up rocks
What is an ocean floor sediment?
broken up rocks
Are the rocks that make up the ocean floor older or younger than those that make up the continents?
same age. the ice caps just melted on top over the rocks at the bottom of the sea.
Is basalt common?
Basalts are as common as the formation of the Ocean floor. Basaltic rocks are ferromagnessian rocks and intrusive igneous rocks. This implies they are formed within the Earth's crust, and they make up the ocean floor. They are dark and dense rocks and occurs in large scale as M.O.R.B. (Mid-oceanic Ridge Basalt).
What is a sedimentary rocks formed from coral shells and skeletons they piled up on the ocean floor?
Shale Rock
How is it possible for the ocean floor to be an ecosystem?
There are certain organisms which have adapted to the ocean floor environment. Together, these organisms make up an ecosystem.
Most of the ocean floor is made up of the?
Most of the ocean floor is made up of ocean plains.
Explain how the ages of the rocks on the ocean floor support the theory of seafloor spreading?
Sea floor spreading, a theory thought up by Harry Hess in the late 1950s, was drawn up in relation to the differing ages of rocks which make up oceanic crust (ie the ocean floor). The ages of rock on the ocean floor support this theory because of the fact that the youngest rocks are found at the mid-oceanic ridges, where constructive plate margins are found. The oldest rocks are found at the fringes of the ocean-continent boundary. This supports the idea because it shows that when magma rises and cools at the boundary, and creates new rock. This rock is then fed in a conveyor belt-like method to the edges of the oceans, where they are then subducted under continental crust as a part of destructive plate margins. This means th oldest rock is found at these boundaries. Hope this helps :)
Where are the youngest rocks on the ocean floor typically found?
fault line
What rocks make up the continent floor?
The continental plate, which is made of granite rock, makes up the continents.
