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Does theory continental drift state that new ocean crust is formed at ocean ridges and destroyed at deep sea trenches?
Wiki User
∙ 11y ago
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.
Wiki User
∙ 11y ago
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How are mountain ridges in Los Andes South America and Himalayas Asia formed?
i built them
How are ridges formed on the ocean floor?
Ocean current paths of travel, underwater volcanoes, tectonic plate movement, depends which specific ridges you are talking about.
Fault block mountains are made of?
Fault-block landforms (mountains, hills, ridges, etc.) are formed when large areas of bedrock are widely broken up by faults creating large vertical displacements of continental crust.These mountains are formed by the Earth's crust being stretched and extended by tensional forces. Fault block mountains commonly accompany rifting, another indicator of tensional tectonic forces.
What evidence supports the theory of plate tectonics?
The shape of the continents, the distribution of earthquakes, the symmetric magnetic banding of the sea floor ether side of the mid oceanic ridges, the mid oceanic ridges, back arc basins, deep sea trenches, the fiery ring of the Pacific, The distribution and chemistry of volcanoes, atolls, paleo magnetism, fossil evidence and the distribution of species. (there may be more evidence).
How can the ocean crust be different ages?
On geologic time scales, new oceanic crust is constantly being formed ad mid-ocean ridges while older crust is destroyed at subduction zones. The crust forms at the ridge and is carried away by the movement of the plate as new crust forms to take its place. The oceanic crust is youngest new a mid ocean ridge and oldest far away from it.
Does the theory of continental drift state that ocean crust is formed at ocean ridges and destroyed at deep sea trenches?
Yes
How do ocean ridges and deep-sea trenches support the theory of sea floor spreading?
Sea Floor spreading has to do with the crust forming at ocean ridges and being destroyed at deep sea trenches.
What is the difference between a ocean ridge and trench?
Trenches are formed by divergent plates, Whereas Ridges are formed by plate in collision.
What are Continental margins near the edges of converging plates?
In the main along the mid oceanic ridges and along oceanic trenches.
What crustal features are formed by plate movement?
Deep ocean ridges, ocean trenches, mountain ranges, volcanoes, faultlines
What theory explains the processes that shape the Earths surface into mountains deep sea trenches and oceanic ridges?
the theory of sea floor spreading or continental drift
What are 2 geological features that can occur at plate boundaries?
What are three geographic features that may be found at plate boundaries?
How is the Earth's crust created and destroyed?
It is created at mid-oceanic ridges (divergent boundaries) and it is destroyed at subduction zones (convergent boundary between oceanic crust and continental crust).
What are the rules of plate tectonics?
1. Continental crust is less dense, or lighter, than Oceanic crust so it doesn't sink. It is never destroyed and is permanent. 2. Oceanic crust is heavier so it can sink below Continental crust. It is constantly being formed and destroyed at ocean ridges and trenches. 3. Continental crust can carry on beyond the edges of the land and finally end far below the sea. This explains why the edges of all the continents don't have deep trenches right up against their coastlines. 4. Plates can never overlap. This means that they must either collide and both be pushed up to form mountains, or one of the plates must be pushed down into the mantle and be destroyed. 5. There can never be gaps between plates, so if two plates move apart, as in the middle of the Atlantic, new rock will be formed to fill the space. 6. We know the Earth isn't getting bigger or smaller, so the amount of new crust being formed must be the same as the amount being destroyed.
Do the sinking of mid-ocean ridges into the ocean trenches prove the Continental Drift theory?
The discovery of the mid-ocean ridge confirmed Alfred Wegener's hypothesis that the continents were moving,
Are maps made from sonar and magnetometer data led to the discovery of ocean ridges and deep-sea trenches?
no they found ocean ridges sonar maps alone found deep-sea trenches
What is the difference between trench and ridges?
Type your answer here... Trenches are man made recess on earth for use in the warfare or some other reason.Ridges are naturally formed in the mountanious regions.
