Basalt mainly.
When sediment sinks into the ocean floor, it is called sedimentation. Over time, layers of sediment build up and compress to form sedimentary rocks.
The most abundant mineral in the ocean floor is likely to be olivine, which is a common mineral found in basaltic rocks that make up the oceanic crust. Olivine is a magnesium-iron silicate mineral that is formed from the cooling and solidification of magma at mid-ocean ridges.
fault line
Ocean-floor rocks and sediments show a pattern of symmetric age distribution, with younger rocks near mid-ocean ridges and older rocks farther away. This supports the theory of seafloor spreading, where new oceanic crust is created at mid-ocean ridges and spreads away from them. As the crust moves, it picks up and records the magnetic signature of Earth's magnetic field, creating alternating magnetic stripes that are evidence 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 :)
Yes, because they make up the ocean sea floor.
The ocean floor is not smooth.The ocean floor is made up of rocks, ledges and ditches.
broken up rocks
broken up rocks
same age. the ice caps just melted on top over the rocks at the bottom of the sea.
Shale Rock
When sediment sinks into the ocean floor, it is called sedimentation. Over time, layers of sediment build up and compress to form sedimentary rocks.
There are certain organisms which have adapted to the ocean floor environment. Together, these organisms make up an ecosystem.
The most abundant mineral in the ocean floor is likely to be olivine, which is a common mineral found in basaltic rocks that make up the oceanic crust. Olivine is a magnesium-iron silicate mineral that is formed from the cooling and solidification of magma at mid-ocean ridges.
Most of the ocean floor is made up of ocean plains.
They might by the snowman melting and washed into the ocean
The continental plate, which is made of granite rock, makes up the continents.