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What movement causes continents to grow outward?
The movement that causes continents to grow outward is called seafloor spreading. This occurs at mid-ocean ridges where tectonic plates diverge, allowing magma to come up and create new seafloor. As new seafloor forms, it pushes the continents on either side further apart, leading to the growth of the continents.
What is the pattern of seafloor age in the ocean basins?
The pattern of seafloor age in ocean basins generally shows that the youngest seafloor is located at mid-ocean ridges, where new oceanic crust is formed through volcanic activity. As you move away from these ridges, the age of the seafloor increases, with older crust found near the continental margins. This pattern is a result of the process of seafloor spreading, which continuously pushes older crust away from the ridges. Consequently, the age of the seafloor increases symmetrically on either side of the mid-ocean ridges.
What is seafloor spreading and what forms as a result of seafloor spreading?
Seafloor spreading is the process by which new oceanic crust is formed at mid-ocean ridges as tectonic plates diverge and magma rises to the surface. This results in the creation of new ocean floor, leading to the expansion of ocean basins. As seafloor spreading occurs, features such as mid-ocean ridges, rift valleys, and volcanic islands can also form as a consequence. Additionally, this process contributes to the cycle of plate tectonics, influencing geological activity and the distribution of continents.
Subduction occurs where the oceanic crust bends down toward the mantle at a(n)?
Seafloor spreading occurs along mid-ocean ridges. Mid-ocean ridges are large mountain ranges on the ocean floor. The shifting in the rock causes the seafloor to spread and allows magma to bubble and form more mountains on the ocean floor.
Why was continental drift more widely accepted after the discovery of seafloor spreading?
so basically the theory of continental drift, no one believed it. the idea that the continents were moving was just an hypothesis made by weigner. seafloor spreading made this hypothesis make sense.
Why does oceanic crust get older as you get closer to continents?
The basalts of the ocean floors are created at the mid-ocean ridges and moves away from these ridges as new crust is created. thus as sea floor spreading occurs the older rock gets pushed away from the ridge towards the continents and the younger rock comes up beside the ridge. good example is the Atlantic ocean
What movement causes continents to grow outward?
The movement that causes continents to grow outward is called seafloor spreading. This occurs at mid-ocean ridges where tectonic plates diverge, allowing magma to come up and create new seafloor. As new seafloor forms, it pushes the continents on either side further apart, leading to the growth of the continents.
What do you call a large area between continents underwater?
A large area between continents underwater is called a ocean basin or a mid-ocean ridge. Ocean basins are vast regions of the seafloor that separate different continents, while mid-ocean ridges are underwater mountain ranges that can extend for thousands of kilometers between continents.
What is the place that new seafloor is created?
in mid ocean ridges
What is the difference of seafloor spreading and continental drift?
In continental drift it says that they were drifted apart by the spin of the earth and in seafloor spreading the earths crust is drifted apart by the ridges in the mid-ocean.
Why is sea-floor spread important yo the idea of moving continents?
Seafloor spreading is important because it provides evidence for the theory of plate tectonics, which explains how and why continents move. As new crust forms at mid-ocean ridges and older crust is pushed away, it helps drive the movement of the Earth's plates and contributes to the shifting of continents over time.
How does seafloor spreading explain continental drift?
Seafloor spreading is caused by two plates moving apart. This is caused by plate tectonics. Continental drift is also caused by plate tectonics. Therefore, we can conclude that continental drift is related to seafloor spreading. When the plates move, it carries the continents with it, and thus the continents drift away from each other.
What do isochron maps of the seafloor indicate?
oldest near ocean ridges
Where are most seafloor spreading centers located?
It is the mid-ocean ridges.
How is seafloor spreading different than continental drift?
Seafloor spreading is the process where new oceanic crust is formed at mid-ocean ridges and then moves apart, while continental drift refers to the movement of continents on the Earth's surface. Seafloor spreading is one mechanism that helps drive the movement of continents as part of plate tectonics.
At which type of plate boundary is the youngest seafloor located?
The youngest seafloor is located at mid-ocean ridges, which are divergent plate boundaries where tectonic plates move apart. As new oceanic crust is formed through seafloor spreading, it pushes older crust away from the ridge, making the seafloor at mid-ocean ridges the youngest on Earth.
Is there evidence that seafloor-spreading?
Yes, there is evidence supporting seafloor spreading, including magnetic striping patterns on the ocean floor, the age progression of seafloor away from mid-ocean ridges, and the presence of hydrothermal vents along mid-ocean ridges that release magma from the Earth's mantle.
