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Explain the relationship between trenches and seafloor spreading?
1. New sea-floor is created by the upwelling of magma at mid-ocean spreading centers; old ocean floor is destroyed by subduction at deep sea trenches. 2. The area is a subduction zone. Magma from underground comes up and destroys that crust. That crust is then recycled and the magma cools and hardens. That creates new land, that creates the trenches. Seafloor spreading is in the ocean and happens with convection currents. That is the relationship between. 3. As new seafloor is formed at mid-ocean ridges, the old seafloor is pushed down into trenches at subduction zones.
Process that forms new seafloor?
Seafloor Spreading
What process forms new seafloor?
Seafloor spreading at midoceanic ridges.
What did the magnetic strips prove in seafloor spreading?
They proved that the seafloor was spreading.
What is the flat part of the seafloor called?
whatis the flat part of the seafloor called?
What is the age of the seafloor?
The sea floor is older than 200 million years. It has been recycled by plate tectonics. Very old rocks have survived.
What is the age of the oldest seafloor?
The oldest seafloor is estimated to be around 200 million years old. New oceanic crust is continuously formed at mid-ocean ridges, so the seafloor is constantly being recycled.
In the process of sea floor spreading what happens when magma rises to the earths surface and solidifies?
Yes. Seafloor spreading is the term given to the creation of new seafloor at divergent boundaries. At a divergent boundary, two oceanic plates move apart, which obviously means that something must then surface to fill the void. This is where the magma rises from the Earth's interior and cools to become seafloor. On the other end, at convergent boundaries, the old seafloor is forced under the continental plates, where it is recycled back into the Earth's magma supply.
In the process of sea-floor spreading what happens when magma rises to Earth's surface and solidifies?
Yes. Seafloor spreading is the term given to the creation of new seafloor at divergent boundaries. At a divergent boundary, two oceanic plates move apart, which obviously means that something must then surface to fill the void. This is where the magma rises from the Earth's interior and cools to become seafloor. On the other end, at convergent boundaries, the old seafloor is forced under the continental plates, where it is recycled back into the Earth's magma supply.
Explain the relationship between trenches and seafloor spreading?
1. New sea-floor is created by the upwelling of magma at mid-ocean spreading centers; old ocean floor is destroyed by subduction at deep sea trenches. 2. The area is a subduction zone. Magma from underground comes up and destroys that crust. That crust is then recycled and the magma cools and hardens. That creates new land, that creates the trenches. Seafloor spreading is in the ocean and happens with convection currents. That is the relationship between. 3. As new seafloor is formed at mid-ocean ridges, the old seafloor is pushed down into trenches at subduction zones.
What seafloor is the process by which new crust is created when seafloor moves apart and magma rises?
Seafloor Spreading
Process that forms new seafloor?
Seafloor Spreading
How does the age of rocks in the seafloor provide evidence of seafloor spreading?
Rocks in the seafloor are moving one place to another
Seafloor is the process by which new crust is created when the seafloor moves apart and magma rises up?
seafloor spreading
What is seafloor plains?
large regions of the seafloor that appear flat but are not
What is the flat part of the seafloor?
whatis the flat part of the seafloor called?
What is used to map seafloor topography?
Sonar is used to map the seafloor.
