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How is new rock added to the ocean floor?
New rock is added to the ocean floor through a process called seafloor spreading, where magma rises from the Earth's mantle at mid-ocean ridges, cools and solidifies to form new oceanic crust. This process helps expand the ocean floor and contributes to the movement of tectonic plates.
How do strip of magnetized rock on the ocean floor provide evidence of sea-floor spreading?
Strips of ocean-floor basalt record the polarity of earth's magnetic field at the time the rock formed. These strips form a pattern that is the same on both sides of the mid-ocean ridge. the pattern shows that ocean floor forms along mid-ocean ridges and then moves away from the ridge.
Where would I find the oldest rock on the ocean floor?
The oldest rock on the ocean floor can be found in the central parts of the ocean basins, particularly in regions known as abyssal plains. These rocks are generally around 200 million years old or older.
What type of rock makes up the ocean floor?
The ocean floor is primarily made up of basalt rock, which is a type of igneous rock formed from solidified lava. Basalt is dark in color and forms through volcanic activity at mid-ocean ridges and hotspots.
What happened in the past to cause limestone to look the way it does now?
Limestone is a sedimentary rock formed from the compression of marine organisms over millions of years. These organisms, like coral and shells, accumulated on the ocean floor and were compressed into solid rock by pressure and time. The presence of calcium carbonate in these marine organisms is what gives limestone its characteristic appearance.
What organisms live in mud sand and rock on the floor?
benthic
Which ocean do starfish live?
Starfish live in every ocean but the arctic ocean, they live on the sea floor and stick to rock and coral :)
What type of rock is organic rock?
An Organic rock is an Sedimentary rock and it is made in the ocean from calcium and other minerals building up on the ocean floor :)
On the ocean floor where is the oldest rock?
The oldest rock in oceanic crust is that which is found the greatest distance from a mid-ocean-ridge.
Do minerals come from the ocean?
yes, the minerals come from rock chimneys on the ocean floor
How is new rock added to the ocean floor?
New rock is added to the ocean floor through a process called seafloor spreading, where magma rises from the Earth's mantle at mid-ocean ridges, cools and solidifies to form new oceanic crust. This process helps expand the ocean floor and contributes to the movement of tectonic plates.
Is the underlying rock beneath the ocean floor silica?
The underlying rock beneath the ocean floor is primarily basalt, which is a mafic rock rich in iron and magnesium. Silica-rich rocks like granite are typically found in continental crust, not beneath the ocean floor.
A rock that makes up much of the ocean floor?
basalt
You find a rock deep in the ocean that contains a fossil What kind of rock is this?
Sedimentary is found below the ocean floor or area with water
What is the description of a sea-cactus?
It is like a cactus you find in deserts ,but its smaller and round and grow in groups and on the ocean floor or on a rock on the ocean floor.
How do strips of magnetized rock on the ocean floor provide evidence of sea-floor spreading?
Strips of ocean-floor basalt record the polarity of earth's magnetic field at the time the rock formed. These strips form a pattern that is the same on both sides of the mid-ocean ridge. the pattern shows that ocean floor forms along mid-ocean ridges and then moves away from the ridge.
Are the youngest rock on the ocean floor near or far from mid- ocean ridges?
Is the following sentence true or false? the theory of sea-floor spreading explains why rocks of the ocean floor are youngest near the mid-ocean ridge.____
