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Seafloor spreading occurs at mid-ocean ridges where tectonic plates move apart, allowing magma to rise and create new oceanic crust. In contrast, subduction is the process where one tectonic plate is forced beneath another into the mantle, often resulting in volcanic activity and the formation of deep ocean trenches. While seafloor spreading generates new crust, subduction recycles old crust back into the Earth's interior. Together, these processes drive the dynamic nature of plate tectonics.
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What is the zones places where the seafloor is forced under continents to drift?
These zones are known as subduction zones where tectonic plates collide, forcing one plate to be pushed beneath the other. This process leads to the formation of deep ocean trenches and can result in earthquakes, volcanic activity, and the creation of mountain ranges.
What did the magnetic strips prove in seafloor spreading?
They proved that the seafloor was spreading.
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.
What feature on the ocean floor would you most likely find the oldest seafloor?
in a subduction trench, because of Harry Hess' theory of sea floor spreading. Meaning that the rock is formed new at the mid-ocean ridge, and moved out towards the coasts into a subduction zone years and years later.
How is a hot spot similar from a subduction zone?
Most volcanoes that cannot be ascribed either to a subduction zone or to a seafloor spreading at mid-ocean ridges are attributed to hot spots.
What is the zones places where the seafloor is forced under continents to drift?
These zones are known as subduction zones where tectonic plates collide, forcing one plate to be pushed beneath the other. This process leads to the formation of deep ocean trenches and can result in earthquakes, volcanic activity, and the creation of mountain ranges.
What process in earth's interior causes subduction and sea floor spreading?
Subduction and sea floor spreading are both a result of the movement of the tectonic plates.Plate Tectonics
What did the magnetic strips prove in seafloor spreading?
They proved that the seafloor was spreading.
Does seafloor spreading cause the earth's crust to expand?
Yes, seafloor spreading is a process where new oceanic crust is formed at mid-ocean ridges, causing the Earth's crust to expand. This occurs as magma rises to the surface, solidifies, and pushes older crust away from the ridge, creating new seafloor.
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.
What feature on the ocean floor would you most likely find the oldest seafloor?
in a subduction trench, because of Harry Hess' theory of sea floor spreading. Meaning that the rock is formed new at the mid-ocean ridge, and moved out towards the coasts into a subduction zone years and years later.
Which force is responsible for seafloor spreading?
Gravity in the oceanic crust is responsible for seafloor spreading.
Seafloor spreading begins when?
Seafloor spreading is triggered by a rift in a continental land mass.
What is the cause events and effects graphic organizer to show the relationship among the processes of convection currents subduction and seafloor spreading?
A cause-events-and-effects graphic organizer can illustrate the relationship between convection currents, subduction, and seafloor spreading by identifying how each process influences the others. Convection currents in the Earth's mantle drive the movement of tectonic plates, leading to subduction, where one plate is forced under another. This process can create trenches and volcanic activity. Meanwhile, seafloor spreading occurs at mid-ocean ridges, where new oceanic crust is formed, contributing to the overall movement of plates and further influencing convection currents.
How have the tectonic plates changed the earth over millions of years?
by: rift valleys subduction- volcanoes continental collision- mountain ranges seafloor spreading- cracks in ocean
