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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 are 3 things that are formed at a divergent boundary?
At a divergent boundary, three key geological features are formed: mid-ocean ridges, where tectonic plates pull apart and new oceanic crust is created; rift valleys, which occur on land as continental plates separate; and volcanic activity, as magma rises to fill the gap created by the diverging plates. These processes contribute to the continuous renewal of the Earth's crust.
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).
Does the theory of continental drift state that ocean crust is formed at ocean ridges and destroyed at deep sea trenches?
Yes
Are new continental crust formed at the mid Ocean Ridges?
Yes, new continental crust is not formed at mid-ocean ridges; instead, these ridges are primarily sites for the formation of new oceanic crust. At mid-ocean ridges, tectonic plates diverge, allowing magma from the mantle to rise and solidify, creating new oceanic crust. Continental crust is formed through different geological processes, such as subduction and continental collision, which occur away from mid-ocean ridges.
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 2 geological features that can occur at plate boundaries?
Two geological features that can occur at plate boundaries are mountain ranges, formed from the collision of two plates, and deep ocean trenches, formed at subduction zones where one plate is forced beneath another.
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.
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.
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 is the difference between trench and ridges?
Trenches are long, narrow depressions in the Earth's surface, usually formed by tectonic activity or erosion. Ridges, on the other hand, are elevated areas or lines along the Earth's surface, often created by the movement of tectonic plates or the accumulation of sediment. In simple terms, trenches are valleys, while ridges are peaks or elevated areas.
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 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 :)
When is crust neither formed or destroyed?
Crust is neither formed nor destroyed when the rate of crust formation at mid-ocean ridges equals the rate of crust destruction at subduction zones. This balance is known as isostasy and helps maintain the overall thickness of the Earth's crust.
What crustal features are formed by plate movement?
Crustal features formed by plate movements include mountain ranges (e.g. the Himalayas created by the collision of the Indian Plate with the Eurasian Plate), mid-ocean ridges (e.g. the Mid-Atlantic Ridge where new oceanic crust is formed), and deep ocean trenches (e.g. the Mariana Trench formed by subduction of the Pacific Plate beneath the Philippine Plate).
