- 1 What kind of tectonic plate is the African plate?
- 2 What is the East African Rift an example of?
- 3 Where is the Red Sea Rift located?
- 4 When did the East African Rift Valley form?
- 5 How fast is Africa moving towards Europe?
- 6 How deep is the African plate?
- 7 Where is Africa splitting apart?
- 8 What caused the formation of the East African Rift Zone?
- 9 How fast is Africa splitting apart?
- 10 Does the Red Sea have thick or thin plates?
- 11 Why is Red Sea getting wider?
- 12 How does the Zagros Mountains rely on the Red Sea rift?
- 13 What’s an example of a rift valley?
- 14 Is the East African Rift a divergent boundary?
- 15 How many countries are in the Rift Valley?
What kind of tectonic plate is the African plate?
The African Plate is a major tectonic plate straddling the Equator as well as the prime meridian.
|Approximate area||61,300,000 km2 (23,700,000 sq mi)|
|Features||Africa, Atlantic Ocean, Mediterranean Sea, Red Sea|
What is the East African Rift an example of?
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.
Where is the Red Sea Rift located?
The Red Sea Rift is a spreading center between two tectonic plates, the African Plate and the Arabian Plate. It extends from the Dead Sea Transform fault system, and ends at an intersection with the Aden Ridge and the East African Rift, forming the Afar Triple Junction in the Afar Depression of the Horn of Africa.
When did the East African Rift Valley form?
The eastern branch formed around 25 to 30 million years ago, whereas the western branch formed only 10 to 15 million years ago — or at least that’s what scientists thought.
How fast is Africa moving towards Europe?
For millions of years the African plate, which contains part of the Mediterranean seabed, has been moving northward toward the Eurasian Plate at a rate of about an inch every 2.5 years (a centimeter a year).
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.
Where is Africa splitting apart?
Scientists say a new ocean will form in Africa as the continent continues to split into two. The East African Rift system made up the western and eastern continental rifts, and stretches from the Afar region of Ethiopia down to Mozambique.
What caused the formation of the East African Rift Zone?
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.
How fast is Africa splitting apart?
The three plates are separating at different speeds. The Arabian plate is moving away from Africa at a rate of about 1 inch per year, while the two African plates are separating even slower, between half an inch to 0.2 inches per year, according to Macdonald.
Does the Red Sea have thick or thin plates?
The crust thins to about 23 km along the Red Sea coast and to about 25 km along the Gulf of Aqaba. We observed a dramatic change in crustal thickness between the topographic escarpment of the Arabian shield and the shorelines of the Red Sea.
Why is Red Sea getting wider?
The Red Sea formed by Arabia splitting from Africa due to continental drift. This split started in the Eocene and accelerated during the Oligocene. The sea is still widening and it is considered that the sea will become an ocean in time (as proposed in the model of Tuzo Wilson).
How does the Zagros Mountains rely on the Red Sea rift?
The Zagros Mountains and the Red Sea Rift are closely related. They are on opposite sides of the plate and are opposite plate boundaries. Since the Red Sea Rift creates crust and pushed the continents away, it causes the Zagros Mountain.
What’s an example of a rift valley?
Very few active rift valleys are found on continental lithosphere. The East African Rift, the Baikal Rift Valley, the West Antarctic Rift, and the Rio Grande Rift are Earth’s major active continental rift valleys. The East African Rift is part of the “Great Rift Valley ” system discussed below.
Is the East African Rift a divergent boundary?
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 many countries are in the Rift Valley?
The Rift Valley, located in Eastern Africa, covers just over 2% of the continent and spreads over seven countries (Map 5 and Table 29). min. max. The Rift Valley consists of a group of independent interior basins, extending from Djibouti in the north to Tanzania in the south, nearly half being located in Ethiopia.