What will happen when oceanic crust converges with each other?
If the two plates that meet at a convergent plate boundary both are of oceanic crust, the older, denser plate will subduct beneath the less dense plate. The older plate subducts into a trench, resulting in earthquakes. Melting of mantle material creates volcanoes at the subduction zone.
Where would Oceanic Oceanic Convergence most likely occur?
Where would oceanic-oceanic convergence most likely occur? Sometimes earthquakes occur at a boundary between the Indian and Eurasian Plates. The collisions of these two continental plates formed the Himalayan mountain range.
What is an example of oceanic oceanic convergence?
Examples of ocean-ocean convergent zones are subduction of the Pacific Plate south of Alaska (creating the Aleutian Islands) and under the Philippine Plate, where it creates the Marianas Trench, the deepest part of the ocean.
What causes the separation of plates?
The heat from radioactive processes within the planet’s interior causes the plates to move, sometimes toward and sometimes away from each other. This movement is called plate motion, or tectonic shift.
What happens when the Earth’s plates separate?
At divergent boundaries, plates separate, forming a narrow rift valley. Here, geysers spurt super-heated water, and magma, or molten rock, rises from the mantle and solidifies into basalt, forming new crust. Thus, at divergent boundaries, oceanic crust is created.
Is Earth’s plates separated by oceans?
Part of Hall of Planet Earth. Plates move apart from each other along divergent boundaries. In the ocean basins these boundaries are the mid-ocean ridges, where new oceanic crust forms. The plates that make up the brittle outer 100 kilometers of the Earth spread apart at divergent boundaries.
What happens when two continents collide?
When two plates carrying continents collide, the continental crust buckles and rocks pile up, creating towering mountain ranges. When an ocean plate collides with another ocean plate or with a plate carrying continents, one plate will bend and slide under the other. This process is called subduction.
How heavy is a tectonic plate?
The thickness of tectonic plates in general varies roughly in the range 100-200 km depending upon whether we are talking about oceanic or continental lithosphere; let’s call it 150 km or 1.5× 105 m. The density of lithospheric material varies in the range 2700-2900 kg m-3; we’ll use 2800 kg m-3.
Why is the lithosphere broken into plates?
The lithosphere is divided into huge slabs called tectonic plates. The heat from the mantle makes the rocks at the bottom of lithosphere slightly soft. This causes the plates to move. The movement of these plates is known as plate tectonics.
Which part of the lithosphere is the thinnest?
The most well-known feature associated with Earth’s lithosphere is tectonic activity. Click below to visit our MapMaker Interactive layer displaying the lithosphere’s tectonic plates. The lithosphere is thinnest at mid-ocean ridges, where tectonic plates are tearing apart from each other.
What are two main components of lithosphere?
The lithosphere is composed of both the crust and the portion of the upper mantle that behaves as a brittle, rigid solid..
What are the main components of lithosphere?
Answer: The lithosphere is the solid, outer part of the Earth. The lithosphere includes the brittle upper portion of the mantle and the crust, the outermost layers of Earth’s structure.
What is the temperature of the lithosphere?
The temperature at the earth’s surface is near 0º C (freezing temperature of water). The temperature increases rapidly to about 1500º C at 100 km depth. From a depth of 100 km to about 2800 km, the temperature increases slowly by only 30º C per 100 km to a temperature of about 2500º C.