What kind of tectonic motion caused the East African Rift?
What kind of tectonic motion caused the East African Rift?
A narrow zone, the rift is a developing divergent tectonic plate boundary where the African Plate is in the process of splitting into two tectonic plates, called the Somali Plate and the Nubian Plate, at a rate of 6–7 mm (0.24–0.28 in) per year.
What direction is the African tectonic plate moving?
northeast
The African Plate’s speed is estimated at around 2.15 cm (0.85 in) per year. It has been moving over the past 100 million years or so in a general northeast direction.
What type of plate movement caused the Rift Valley?
The Baikal Rift Valley is formed by a divergent plate boundary, where the Amur plate is slowly tearing itself away from the Eurasian plate, and has been doing so for about 25 million years.
Is the East African Rift convergent?
The East African Rift Valley is an example of a divergent boundary in an area of continental crust. It is one the geologic wonders of the world, a place where the earth’s tectonic forces are presently trying to create new plates by splitting apart old ones.
Which features of East Africa are caused by plate tectonics?
The East African Rift is one of the great tectonic features of Africa, caused by fracturing of the Earth’s crust.
Which tectonic plate does the East African Ridge Valley run through?
The East African Rift Valley (EAR) is a developing divergent plate boundary in East Africa. Here the eastern portion of Africa, the Somalian plate, is pulling away from the rest of the continent, that comprises the Nubian plate.
How did the South African plate and African plate move?
How did the South American Plate and African Plate move? Earth’s plates move on top of a soft, solid layer of rock called the mantle. The South American and African Plates moved apart as a divergent boundary formed between them and an ocean basin formed and spread.
Is the African plate oceanic or continental plate?
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….
Which tectonic plate does the East African Ridge valley run through?
What tectonic plate is Ethiopia on?
The Afar region in Northern Ethiopia is the centre of a “Y” shaped rift system, where the continental lithosphere is being stretched and is splitting. 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.
How was the East African Rift system formed?
Millions of years ago, the Arabian Peninsula was connected to Africa. Seafloor spreading caused the Arabian and African plates to rift apart. The Indian Ocean flooded the rift valley between the continents, creating the Red Sea. South of the Red Sea Rift lies the massive, complex East African Rift.
What causes the East African Rift?
Is the East African Rift part of the Great Rift Valley?
East African Rift. In the past, it was considered to be part of a larger Great Rift Valley that extended north to Asia Minor . The rift is a narrow zone that is a developing divergent tectonic plate boundary, where the African Plate is in the process of splitting into two tectonic plates, called the Somali Plate and the Nubian Plate,…
Where are two tectonic plates in East Africa?
The area where two tectonic plates come together is known as the plate boundary. In East Africa, there are two main plates: the African (or Nubian) Plate, and the Arabian Plate, which are separated by a divergent plate boundary.
Where is the Somali Plate located in the rift zone?
Along the east edge of the boundary, the Somali Plate is positioned along the East African Rift zone. This developing rift zone is gradually separating the east part of the continent. The west side of the African major plate diverges from the North American plate. These divergent plate boundaries forms the mid-oceanic ridges or rift valley.
Is the Victoria Plate part of the rift system?
The microplate, or rift branch, known as the Victoria plate, is one of several sections of the East African Rift System—a newly developing tectonic boundary, where the African plate is in the process of splitting in two. The Victoria plate is moving counterclockwise, in contrast to the other microplates, Rovuma and Lwandle, further to the south.
