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What is the process of the ocean floor sinking beneath a deep ocean trench and back into the mantle known as?
The process of the ocean floor sinking beneath a deep ocean trench and back into the mantle is known as subduction. This occurs at convergent plate boundaries where one tectonic plate is forced beneath another due to differences in density. Subduction zones are associated with volcanic activity and the formation of mountain ranges.
Portion of the earth's crust that lies beneath the ocean floor?
The portion of Earth's crust that lies beneath the ocean floor is called oceanic crust. It is thinner and denser than continental crust, primarily composed of basaltic rocks, and formed at mid-ocean ridges through volcanic activity.
Deep ocean trenches are surficial evidence for?
plate tectonics and the process of subduction. They are formed where one tectonic plate is forced beneath another, leading to the creation of the deep trenches in the ocean floor. This process is associated with the movement of Earth's lithospheric plates.
How is new rock added to the ocean floor?
New rock is added to the ocean floor through a process called seafloor spreading, where magma rises from the Earth's mantle at mid-ocean ridges, cools and solidifies to form new oceanic crust. This process helps expand the ocean floor and contributes to the movement of tectonic plates.
What is the process in which the ocean floor sinks into the mantle is called?
The process in which the ocean floor sinks into the mantle is called subduction. This occurs at convergent plate boundaries, where one tectonic plate slides beneath another. Subduction zones are associated with deep-sea trenches and volcanic activity.
What is the process of the ocean floor sinking beneath a deep ocean trench and back into the mantle known as?
The process of the ocean floor sinking beneath a deep ocean trench and back into the mantle is known as subduction. This occurs at convergent plate boundaries where one tectonic plate is forced beneath another due to differences in density. Subduction zones are associated with volcanic activity and the formation of mountain ranges.
What is a valuable substance beneath the ocean floor?
A valuable substance beneath the ocean floor often includes gold, crystal and many other substances. Where these are found varies.
Is the underlying rock beneath the ocean floor silica?
The underlying rock beneath the ocean floor is primarily basalt, which is a mafic rock rich in iron and magnesium. Silica-rich rocks like granite are typically found in continental crust, not beneath the ocean floor.
What caused the tsunami to happen?
An earthquake beneath the Ocean floor.
What are triggered by earthquakes originating beneath the ocean floor?
Focus
What is the term used to describe ocean floor sinking into a deep-ocean trench?
Subduction is the term used to describe the process of one tectonic plate sinking beneath another at a deep-ocean trench. This occurs when a denser oceanic plate slides under a less dense continental plate, leading to the formation of deep-sea trenches and volcanic arcs.
Are triggered by earthquakes originating beneath the ocean floor?
Tidal waves ?
The wreckage of the USS Arizona is on the floor of what ocean?
The Pacific Ocean at Pearl Harbor, Hawaii.
The wreckage of the USS Arizona is in the floor of what ocean?
The Pacific Ocean at Pearl Harbor, Hawaii.
What happens to the ocean floor at the deep ocean trenches?
what happens is the ocean floor does not just keep spreading.instead, it sinks beneath deep underwater canyons called deep- ocean trenches
What does produce when sea floor spreading occur?
An ocean because when the ocean spread out the ocean floor is moving and becoming large but because also of the sinking of the ocean floor it 's not becoming larger it's just maintaining it own size. lyssa
What causes the hot materials beneath ocean floor to move?
Convection currents.
