how many tectonic plates are there in the world and what is there real location?
Answers
Answer:
The World Atlas names seven major plates: African, Antarctic, Eurasian, Indo-Australian, North American, Pacific and South American.
Explanation:
California is located at the seam of the Pacific Plate, which is the world’s largest plate at 39,768,522 square miles, and the Northern American plate.
Tectonic plate interactions are classified into three basic types:[1]
Divergent boundaries are areas where plates move away from each other, forming either mid-ocean ridges or rift valleys. These are also known as constructive boundaries.
Convergent boundaries are areas where plates move toward each other and collide. These are also known as compressional or destructive boundaries.
Subduction zones occur where an oceanic plate meets a continental plate and is pushed underneath it. Subduction zones are marked by oceanic trenches. The descending end of the oceanic plate melts and creates pressure in the mantle, causing volcanoes to form.
Divergent boundaries
The East African Rift (Great Rift Valley) in eastern Africa
The Mid-Atlantic Ridge system separates the North American Plate and South American Plate in the west from the Eurasian Plate and African Plate in the east
The Gakkel Ridge is a slow spreading ridge located in the Arctic Ocean
The East Pacific Rise, extending from the South Pacific to the Gulf of California
The Baikal Rift Zone in eastern Russia
The Red Sea Rift
The Aden Ridge along the southern shore of the Arabian Peninsula
The Carlsberg Ridge in the eastern Indian Ocean
The Gorda Ridge off the northwest coast of North America
Convergent boundaries (subduction zones)
The oceanic Nazca Plate subducts beneath the continental South American Plate at the Peru–Chile Trench.
Just north of the Nazca Plate, the oceanic Cocos Plate subducts under the Caribbean Plate and forms the Middle America Trench.
The Cascadia subduction zone is where the oceanic Juan de Fuca, Gorda and Explorer Plates subduct under the continental North American plate.
The oceanic Pacific Plate subducts under the North American Plate (composed of both continental and oceanic sections) forming the Aleutian Trench.
The oceanic Pacific Plate subducts beneath the continental Okhotsk Plate at the Japan Trench.
The oceanic Philippine Sea Plate subducts beneath the Eurasian Plate at the Ryukyu Trench.
The oceanic Pacific Plate subducts under the oceanic Philippine Sea Plate forming the Mariana Trench.
The oceanic Philippine Sea Plate is subducting under the Philippine Mobile Belt forming the Philippine Trench and the East Luzon Trench.
The Eurasian Plate is subducting under the Philippine Mobile Belt at the Manila Trench.
The Sunda Plate is subducting under the Philippine Mobile Belt at the Negros Trench and the Cotobato Trench.
The oceanic Indo-Australian Plate is subducted beneath the continental Sunda Plate along the Sunda Trench.
The oceanic Pacific Plate is subducting under the Indo-Australian Plate north and east of New Zealand, but the direction of subduction reverses south of the Alpine Fault where the Indo-Australian Plate starts subducting under the Pacific Plate.
The South American Plate is subducting under the South Sandwich Plate, forming the South Sandwich Trench.
Orogenic belts
The most dramatic orogenic belt on the planet is the one between the Indo-Australian Plate and African Plate on one side (to the South) and the Eurasian Plate on the other side (to the North). This belt runs from New Zealand in the East-SouthEast, through Indonesia, along the Himalayas, through the Middle East up to the Mediterranean in the West-Northwest. It is also called the "Tethyan" Zone, as it constitutes the zone along which the ancient Tethys Ocean was deformed and disappeared. The following mountain belts can be distinguished:
The European Alps
The Carpathians
The Pyrenees
The Apennines
The Dinarides
The North African mountain belts such as the Atlas Mountains
The Himalayas
The Indonesian Archipelago
The Southern Alps of New Zealand
The Andes orogenic belt is the latest of a series of orogenies along the western margin of the South American Plate.
Transform boundaries
The San Andreas Fault in California is an active transform boundary. The Pacific Plate (carrying the city of Los Angeles) is moving northwards with respect to the North American Plate.
The Queen Charlotte Fault on the Pacific Northwest coast of North America
The Motagua Fault, which crosses through Guatemala, is a transform boundary between the southern edge of the North American Plate and the northern edge of the Caribbean Plate.
New Zealand's Alpine Fault is another active transform boundary.