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Where does the ocean floor go to after 180 million years?
Where old oceanic crust meets continental crust or younger oceanic crust at a convergent plate boundary it gets forced down into the mantle. This process does not necessarily happen when the crust is 180 millions years old. Rather, the oldest oceanic crust is found along the edges of the Atlantic ocean, dating to when it first formed in the Jurassic period.
Why is the Atlantic Ocean is spreading?
The oceanic crust of the Atlantic Ocean floor is attached to the continental crust of the continents around the ocean. So as the Atlantic's Ocean floor spreads, the continents along its edges also move. Over time, the whole ocean gets wider.
How mt merapi gets it name?
Mount Merapi was formed by two converging plates. Subduction causes slabs of oceanic crust to sink through a deep-ocean trench into the mantle. The crust melts and forms magma, which then rises back toward the surface. It is located along the Sunda, or Java trench. When the magma from the melted crust erupts as lava, volcanoes are formed. Mount Merapi is located along an island arc.
Is crust being destroyed or created?
near ocean trenches.
Does the Earth's crust move through the oceans?
In a sense, yes. The oceans lay on top of the crust. As the crust moves on top of the mantle at a speed roughly equivalent to the rate of fingernail growth, the ocean gets out of the way.
What Is the relation between age of oceanic crust and distance from divergent plate boundary?
When oceanic crust is still young, it's relatively warm. The older it gets, the colder it gets. The colder it gets, the less volume it takes in, however, it's still the same amount of matter. This causes a bigger density, thus causing the crust to sink deeper into the mantle.
What are two ways salt gets into the seawater?
by rivers
Why are the eyes becomes painful if seawater gets into it?
Because the fluid in your eyes is a bit salty, your eyes will hurt if you get sweet water into them. But getting salty water into your eyes from the ocean will not feel painful.
Where are the oldest rocks located in the ocean crust?
The oldest rocks on the ocean floor would be those at the colliding edge of the plate boundary.Answer 2: The oldest of all oceanic rocks are on the Asian side of the pacific plate.
How can a new land be formed?
A new land can be formed through geological processes such as volcanic activity, where lava cools and solidifies to create new landmasses. Another way is through sediment deposition where materials like sand, silt, and clay accumulate over time to form new land areas. Additionally, tectonic movements like uplift or subsidence can also contribute to the formation of new land.
Is the crust of the earth a liquid or a solid?
Generally speaking, the crust of the earth is a solid. Yes, there are oceans on the earth. Heck, they cover much of the surface. But the crust extends down well below the bottom of the ocean. Earth's crust is up to 70 kilometers deep, which is over 40 miles. The deepest the ocean gets is roughly 7 miles. A link is provided to the Wikipedia article on the earth's structure.
Why most of the pacific ocean islands volcanic in nature?
All around the edge of the Pacific Ocean the oceanic crust is being forced down under the continents bordering the Pacific. As the oceanic crust is forced deeper it gets hot and starts to melt, heat rises and makes its way to the surface forming a volcano.
