The African plate itself seems to be splitting apart. The East African Rift valley runs from Ethiopia southward, creating some of Africa’s largest lakes, such as Lake Tanganyika. This rift is a result of the eastern area of Africa diverging from the western area.
What was formed when the African plate?
Components. The African Plate includes several cratons, stable blocks of old crust with deep roots in the subcontinental lithospheric mantle, and less stable terranes, which came together to form the African continent during the assembly of the supercontinent Pangea around 250 million years ago.
What do the plates create?
The plates make up Earth’s outer shell, called the lithosphere. (This includes the crust and uppermost part of the mantle.) Churning currents in the molten rocks below propel them along like a jumble of conveyor belts in disrepair.
What was created as the African plate and the Arabian Plate moved away from each other?
The Arabian Plate is rifting away from the African plate along an active divergent ridge system, to form the Red Sea and Gulf of Aden.
Is African plate made of oceanic crust or continental crust?
The African Plate is both oceanic and continental. It has the whole African continent on top of it as well as the oceanic crust of the Atlantic Ocean. There is a divergent boundary between the African plate and the North American Plate and the South American Plate.
How deep is the African plate?
The African plate includes 0 age oceanic lithosphere created at the Red Sea and Gulf of Aden mid-ocean ridges, 175 Ma oceanic lithospheric, and > 2.5 Ga Archaean cratons that are more than 170 km thick.
Is Israel on the African plate?
Israel is situated along the border between the African Tectonic Plate and the Arabian Tectonic Plate. The border between these two plates forms part of the Great Rift Valley, the world’s most extensive geological fault, which extends southward through eastern Africa as far south as Mozambique.
What are the 3 theories of plate tectonics?
The three types of plate boundaries are divergent, convergent, and transform. They are described in the following three concepts. Most geological activity takes place at plate boundaries.
What is it called when one plate moves under another?
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. A deep ocean trench forms at this subduction boundary.
Why do tectonic plates exist?
The main driving force of plate tectonics is gravity. If a plate with oceanic lithosphere meets another plate, the dense oceanic lithosphere dives beneath the other plate and sinks into the mantle. … However, convection also drives plate tectonics.
How does the African plate move?
African Plate Movement
The northern portion of the plate is being pulled under the Eurasian plate at the subduction boundary. The plate is being pushed to the west by the divergent boundary in the Atlantic Ocean, while also being pushed to the north by the divergent boundary along the southern plate.
Is Arabian plate oceanic or continental?
The Arabian plate is a continental plate and has an area of 5,000,000 km 2 .