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Compared to ocean crust near deep-sea trenches crust near ocean ridges are?
Compared to ocean crust near deep-sea trenches, crust near ocean ridges is generally younger, thinner, and hotter. Ocean ridges are sites of active seafloor spreading where magma rises to create new crust, while deep-sea trenches are associated with subduction, where older, denser crust is pulled back into the mantle. As a result, the crust at ocean ridges is also less dense and more buoyant than the crust found near trenches.
What are places where oceanic crust sinks back to the mantle?
No. Mid oceanic ridges are the places where new oceanic crust are forming.
How do ocean trenches help explain why crust added at ocean ridges doesn't make earth any larger?
Ocean trenches were discovered as a sign of destructive plate margins. These plate margins cause oceanic crust to subduct below the continental crust at the oceanic-continental boundary, and force the oceanic crust to move down into the Earth's mantle and melt into basaltic magma. As this is happening, magma at oceanic ridges is creating new oceanic crust at the mid-oceanic ridges. Overall, these two processes cancel each other out and so the total amount of oceanic crust is staying aproximately the same. Therefore the Earth is not growing. Hope this helps :)
Is the earths lithosphere thicker in the vicinity of ridges or in the vicinity of trenches?
The Earth's lithosphere is generally thicker in the vicinity of trenches than around mid-ocean ridges. At mid-ocean ridges, where new oceanic crust is formed through volcanic activity, the lithosphere is relatively thin. Conversely, at subduction zones near trenches, the lithosphere is thicker due to the presence of older, denser oceanic crust being forced down into the mantle.
How do ocean floor features such as trenches and mind-ocean ridges form?
Ocean floor features like trenches and mid-ocean ridges form due to tectonic plate interactions. Trenches are created at convergent boundaries where one plate subducts beneath another, leading to deep, elongated depressions. In contrast, mid-ocean ridges develop at divergent boundaries where tectonic plates move apart, allowing magma to rise and create new oceanic crust. These processes are driven by the dynamics of plate tectonics and mantle convection.
Compared to ocean crust near deep-sea trenches crust near ocean ridges are?
Compared to ocean crust near deep-sea trenches, crust near ocean ridges is generally younger, thinner, and hotter. Ocean ridges are sites of active seafloor spreading where magma rises to create new crust, while deep-sea trenches are associated with subduction, where older, denser crust is pulled back into the mantle. As a result, the crust at ocean ridges is also less dense and more buoyant than the crust found near trenches.
Does theory continental drift state that new ocean crust is formed at ocean ridges and destroyed at deep sea trenches?
No, the theory is that Seafloor spreading state that the new ocean crust is formed at ocean ridges and is destroyed at deep sea trenches.
How do you contrast mid-ocean ridges and trenches?
Mid-ocean ridges are the birthplace of oceanic crust. Trenches represent the destruction and burial of oceanic crust. They are at opposite ends of the Earth's convection currents that move through the asthenosphere.
What physical feature occures along ocean trenches and ridges?
The physical feature that occurs along ocean trenches and ridges is seafloor spreading. This process is when new oceanic crust is formed at mid-ocean ridges through volcanic activity, pushing the older crust away from the ridge towards ocean trenches where it is eventually subducted back into the mantle.
How do ocean ridges and deep-sea trenches support the theory of sea floor spreading?
Ocean ridges and deep-sea trenches support the theory of sea floor spreading through the process of plate tectonics. At ocean ridges, new oceanic crust is formed as magma rises and solidifies, pushing the existing crust apart. Deep-sea trenches are areas where old oceanic crust is being subducted back into the mantle, completing the cycle of sea floor spreading. This continuous movement of crust at ridges and trenches provides evidence for the theory of sea floor spreading and the movement of tectonic plates.
Does the theory of continental drift state that ocean crust is formed at ocean ridges and destroyed at deep sea trenches?
Yes
What are places where oceanic crust sinks back to the mantle?
No. Mid oceanic ridges are the places where new oceanic crust are forming.
How do ocean trenches help explain why crust added at ocean ridges doesn't make earth any larger?
Ocean trenches were discovered as a sign of destructive plate margins. These plate margins cause oceanic crust to subduct below the continental crust at the oceanic-continental boundary, and force the oceanic crust to move down into the Earth's mantle and melt into basaltic magma. As this is happening, magma at oceanic ridges is creating new oceanic crust at the mid-oceanic ridges. Overall, these two processes cancel each other out and so the total amount of oceanic crust is staying aproximately the same. Therefore the Earth is not growing. Hope this helps :)
Crust under the ocean is called?
Crust under the oceans is called oceanic crust.
Isochron maps indicate what about the seafloor of the ocean crust?
Isochron maps indicate the age of the seafloor on the ocean crust. They show patterns of different ages of the oceanic crust moving away from mid-ocean ridges, where new crust is being formed. Younger crust is found closer to the ridges, while older crust is found farther away.
Is the earths lithosphere thicker in the vicinity of ridges or in the vicinity of trenches?
The Earth's lithosphere is generally thicker in the vicinity of trenches than around mid-ocean ridges. At mid-ocean ridges, where new oceanic crust is formed through volcanic activity, the lithosphere is relatively thin. Conversely, at subduction zones near trenches, the lithosphere is thicker due to the presence of older, denser oceanic crust being forced down into the mantle.
How do ocean floor features such as trenches and mind-ocean ridges form?
Ocean floor features like trenches and mid-ocean ridges form due to tectonic plate interactions. Trenches are created at convergent boundaries where one plate subducts beneath another, leading to deep, elongated depressions. In contrast, mid-ocean ridges develop at divergent boundaries where tectonic plates move apart, allowing magma to rise and create new oceanic crust. These processes are driven by the dynamics of plate tectonics and mantle convection.
