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By which process is the earths crust returned to the mantle?
The process by which the Earth's crust is returned to the mantle is known as subduction. In subduction zones, oceanic plates are forced beneath continental plates, carrying crustal material back into the mantle where it is recycled. This process is a key part of the Earth's tectonic cycle.
What is earths plasticlike layer?
The Earth's plastic-like layer is the asthenosphere, which is a semi-fluid layer of the upper mantle. It is composed of partially molten rock that allows tectonic plates to move slowly over it. The asthenosphere plays a key role in the process of plate tectonics.
What process causes earths plates to move?
The process of 'earth plates moving' is Alfred Wageners theory of continental drift. This theory proposes that convenction currents in the earths mantle provides a 'cushion' on which the plates can move.
What is lithospheric plates?
Lithospheric plates are large, rigid pieces of Earth's outermost layer, the lithosphere. These plates include both the continental crust and the outermost part of the mantle and float on the semi-fluid asthenosphere beneath them. The movement and interactions of these plates are responsible for many geologic processes, such as earthquakes, volcanic activity, and mountain building.
What drives the motion of the continental plates on Earth?
The motion of the continental plates on Earth is primarily driven by the process of mantle convection. Heat from Earth's core causes the rock in the mantle to slowly move, creating convection currents that push and pull the plates along with them. This movement leads to the drifting and collision of the plates, shaping the Earth's surface over millions of years.
What do earths tectonic plates do?
The plates (continental and ocean plates) ride atop the asthenosphere, a layer of viscous rock in the upper mantle beneath the crust.
Plasticlike layer of Earth on which the lithosperic plates float and move around?
The plasticlike layer of Earth is the asthenosphere. It is a zone of the upper mantle where rock is soft and capable of gradual flow. The lithospheric plates float and move on top of the asthenosphere, contributing to the movement of tectonic plates.
Where was the continental drift?
Continental drift occurs under the earths crust by convection currents in the mantle which drives the plates. It has been happening since the development of the earths core and is happening now and until the end of the earth.
What layer are the plates on?
The worlds tectonic plates slide on the earths mantle.
Where in Earth's crust would you find basalt?
Most basalt is found in the oceanic plates. Most granite is found in the continental plates.
What layer are the plates sliding on?
The worlds tectonic plates slide on the earths mantle.
What are oceans current are formed by what?
Moving plates in the earths mantle.
What layer in earths mantle do the plates slide over?
The asthenosphere.
How does plate tectonics affect the mantle?
Tectonic Plates float on top of the earths mantle, the earths mantle is made up liquid which is always circulating.
What is tactonic plates?
PLATE TECTONICS is the study of the movement of the earths continental plates
By which process is the earths crust returned to the mantle?
The process by which the Earth's crust is returned to the mantle is known as subduction. In subduction zones, oceanic plates are forced beneath continental plates, carrying crustal material back into the mantle where it is recycled. This process is a key part of the Earth's tectonic cycle.
Where is the location of plate tectonics?
First of all, there is no location of plate techtonics! Plate techtonics is the theory that Earth's crust and part of the upper mantle are broken into sections. These sections (plates) move on a plasticlike layer of the mantle.
