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How does a deep-ocean trench form?
They form when the oceanic crust goes under the Continental crust. The oceanic crust then forms the trenches through a process called subduction.
Why is the earths crust always moving?
Simple- Convection in the mantle causes mantle to slowly move, and it pushes against the crust. As it does this, the tectonic plates move.
Does Montana have volcanoes?
There are no active volcanoes in Montana. You have to go further west to the Cascade Range to find volcanoes. The volcanoes in the Cascades are caused by the subduction of the oceanic crust under the continental crust.
What is caused when plates collide into each other?
When plates are actually coming towards each other, there can be two different boundaries: collision and destructive boundaries. In a collision boundary, there are earthquakes, and fold mountains are created from the plates pushing up against each other, like the Himalayas. When there is a destructive boundary, like the Eurasian and Pacific plates, the oceanic plate slides underneath the continental plate, being destroyed and causing earthquakes and volcanic eruptions. There are two other types of boundaries: conservative, where plates slide past each other, and constructive, where plates move away from each other.
Earth's crust is a thin layer made of?
Earth's crust is made of sedimentary, metamorphic, and igneous rock. The continental crust is composed primarily of granitic rock and can be up to 45 miles thick. The oceanic crust is composed primarily of basaltic rock and can be up to 6 miles thick.
What is the difference between continential and oceanic crust?
Continental crust is thicker, less dense, and typically older than oceanic crust. Oceanic crust is thinner, more dense, and younger as it is constantly being formed at mid-ocean ridges and being recycled at subduction zones.
Which is thicker continental crust oceanic crust?
Continental crust is the thicker of the two: it extends far beneath and above the Oceanic crust.
What is the largest layer of earths surface?
The largest layer of Earth's surface is the crust, which is divided into oceanic and continental crust. The continental crust is thicker and less dense than the oceanic crust, covering about 40% of the Earth's surface.
Is earth's continental crust thicker or thinner than the oceanic crust?
On average, it is much thicker than oceanic crust.
Would it be better to drill through the earths crust or the oceanic crust?
oceanic crust
Does the continental or the oceanic crust extend farther into the mantle?
The continental crust because it is thicker than the oceanic crust
What type of crust is thicker Continental or Oceanic?
Continental crust is generally thicker than oceanic crust. Continental crust can be up to 70 km thick, while oceanic crust is usually around 5-10 km thick.
What are the two types of earths crusts?
The two types of Earth's crust are continental crust and oceanic crust. Continental crust is thicker, less dense, and composed mainly of granite, while oceanic crust is thinner, denser, and made up mostly of basalt.
Is the oceanic crust thicker than the comtinental crust?
No. Oceanic crust is about 5km to 10km thick. Continental crust is about 30km to 50km thick.
What are three differences between oceanic and continental crust?
Continental crust is mostly composed out of granite, oceanic crust out of basalt.Continental crust is thicker and less dense than oceanic crust.
Where is the crust located in the earths layers?
The Earth's crust is the outermost layer of the Earth, and it is the thinnest layer compared to the mantle and core. It is divided into oceanic crust, which is thinner and denser, and continental crust, which is thicker and less dense.
What is difference of the continental crust and the oceanic crust?
Continental crust is thicker but less dense, and oceanic crust is thinner but more dense, making it heavier.
