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When seafloor spreading occurs, it pushes the underground magma up though the new crust, creating a sort of volcano out of the new crust. Magma is a very important part in seafloor spreading. :]
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What did the magnetic strips prove in seafloor spreading?
They proved that the seafloor was spreading.
What phenomenon occurs as a result of seafloor spreading?
In 1960, seafloor spreading was hypothesized by Harry Hess of Princeton University. Seafloor spreading occurs at divergent boundaries and it is said to be the mechanism that operates along the oceanic ridge system to generate new seafloor. Thus, the result of seafloor spreading is the creation of new sea floor through the uplift of magma: magma raises from asthenosphere, new oceanic lithosphere moves from ridge, and it thickens, cools (becomes denser), and subsides.
How to Diagram the process of seafloor spreading?
A diagram that shows how seafloor spreading works.
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.
Which force is responsible for seafloor spreading?
Gravity in the oceanic crust is responsible for seafloor spreading.
What seafloor is the process by which new crust is created when seafloor moves apart and magma rises?
Seafloor Spreading
Seafloor is the process by which new crust is created when the seafloor moves apart and magma rises up?
seafloor spreading
Each cycle of spreading and intrusion of magma during seafloor spreading results in?
isochron
What each cycle of spreading and intrusion of magma during seafloor spreading results in?
Taco.
What is the process by which new crust is created when the seafloor moves apart and magma rises up?
Seafloor Spreading
What layer produces the magma that cause seafloor spreading and volcanoes?
the upper mantle
What does hot magma forced upward at mid-ocean ridges produce?
Seafloor spreading
At a divergent boundary land is gained or lost?
At a divergent boundary, land is gained. Ocean ridges are prominent at divergent plate boundaries. Ocean ridges are areas of seafloor spreading. Seafloor spreading occurs as upwelling magma rises to the surface. This upwelling magma hardens and forms new seafloor.
When solid mantle rock rises during seafloor spreading magma is produced as a result of decompression melting?
Yes.
What is the driving force for seafloor spreading?
The driving force for seafloor spreading is the movement of tectonic plates. As magma rises from the mantle to the surface at mid-ocean ridges, it creates new oceanic crust which pushes the existing plates apart, causing seafloor spreading. This process is part of the larger theory of plate tectonics.
What did the magnetic strips prove in seafloor spreading?
They proved that the seafloor was spreading.
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.
