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Are Sea mounts are deep cuts in the ocean floor?
Are trenches caused from tectonic activity.
Where does the sediment on the abyssal plain come from?
It comes from sea mounts and ocean trenches.
What three pieces of evidence for Wegener's theory came from the sea floor?
seafloor spreading, age of the sea floor and ocean trenches.
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.
Do deep sea trenches cause damage?
Deep sea trenches are caused by one tectonic plate subducting under another. It is not the trenches which cause damage, it is the earthquakes caused by the subducting of one plate moving against the other.
Are maps made from sonar and magnetometer data led to the discovery of ocean ridges and deep-sea trenches?
Yes, sonar and magnetometer data have been instrumental in the discovery of ocean ridges and deep-sea trenches. Sonar data is used to map the sea floor topography, revealing ocean ridges, while magnetometer data helps identify variations in the Earth's magnetic field caused by stripes of rock on the ocean floor, contributing to understanding plate tectonics and the formation of deep-sea trenches.
What are the deepest part of the ocean floor?
The deepest parts of the ocean floor are caused by plate tectonic subduction and occur where the sea floor sinks back into the mantle in a subduction zone. These areas are called deep sea trenches and the Challenger Deep in the Mariana Trench in the Pacific is the deepest known point in Earth's oceans.
Are older rocks on the ocean floor found near deep sea trenches?
Yes
Are deep sea trenches vast underwater mountain chains?
No, deep sea trenches are not underwater mountain chains. Deep sea trenches are long, narrow depressions in the ocean floor formed by tectonic plate activity, while underwater mountain chains, known as mid-ocean ridges, are long mountain ranges on the ocean floor where tectonic plates are spreading apart.
What are deep-ocean trenches?
Deep ocean trenches are deep slits in the middle of the ocean. The pressure inside these trenches is unbearable. long, curved valleys along the edges of the ocean basin
Why do passive margins have no trenches?
Trenches are caused by plate movement.
Is it dark in sea trenches?
It is extremely dark in sea trenches.
