What two plates made the Andes?
The Nazca Plate is moving eastwards, towards the South American Plate, at about 79mm per year.
Which tectonic plates formed the Andes Mountains?
An international team of geologists were intrigued by the Andes’ geology and have finally solved a mystery that scientists had previously been unable to answer: the mountains were formed only 45 million years ago yet the massive forces that pushed them up have been at work for 140 million years as the Nazca tectonic …
What tectonic plate is Chile on?
South American
Chile, and the other countries of South America, lie on top of the South American tectonic plate. To the west of Chile, the Nazca Plate extends beneath the Pacific Ocean and meets the Pacific Plate along a divergent plate boundary called the East Pacific Rise.
Which geographical process caused the Andes Mountains?
The Andes are the result of tectonic plate processes, caused by the subduction of oceanic crust beneath the South American Plate. It is the result of a convergent plate boundary between the Nazca Plate and the South American Plate.
What type of plate boundary formed the Alps mountains?
Tectonic history. The Alps are a fold and thrust belt. Folding and thrusting is the expression of crustal shortening which is caused by the convergent movements of the European and Adriatic plates.
What type of mountain is the Andes Mountains?
continental mountain range
The Andes are the world’s longest continental mountain range, about 9,000 km in all. They lie as a continuous chain of highland along the western coast of South America, along that route, they cross through Ecuador, Peru, and Bolivia .
What plate boundary is Santiago on?
Chile, and the other countries of South America, lie on top of the South American tectonic plate. To the west of Chile, the Nazca Plate extends beneath the Pacific Ocean and meets the Pacific Plate along a divergent plate boundary called the East Pacific Rise.
How was the Chile ridge formed?
At chron 5A (∼12 Ma), the Chile ridge propagated from the Valdivia FZ system northward into the Nazca plate through crust formed 5 Myr earlier at the Pacific-Nazca ridge.
What tectonic plates formed the Great Dividing Range?
The Great Dividing Range was formed during the Carboniferous period—over 300 million years ago—when Australia collided with what are now parts of South America and New Zealand.
What two plates formed the Alps?
The Alps resulted from collision of the African and European Plates, which produced complex lithological and structural patterns associated with the development of a series of overthrusted nappes.
How were the Andes formed?
The Andes were formed by tectonic activity whereby earth is uplifted as one plate (oceanic crust) subducts under another plate (continental crust). To get such a high mountain chain in a subduction zone setting is unusual which adds to the importance of trying to figure out when and how it happened.
What are two plates form the Andes Mountains?
– Answers What two plates form the Andes mountains? The South American and Nazca plates. Q: What two plates form the Andes mountains? Write your answer… Registered users can ask questions, leave comments, and earn points for submitting new answers.
Where do the Nazca and South American plates meet?
Where the two plates meet, the denser oceanic lithosphere of the Nazca Plate is forced down and under the more buoyant continental lithosphere of the South American Plate, descending at an angle into the mantle in a process called subduction.
Where does the Oceanic and continental plates meet?
Oceanic/Continental: The Andes. The Nazca Plate is moving eastwards, towards the South American Plate, at about 79mm per year. Where the two plates meet, the denser oceanic lithosphere of the Nazca Plate is forced down and under the more buoyant continental lithosphere of the South American Plate, descending at an angle into…
How does the South American Plate add to the size of the continent?
This forms an accretionary wedge (or ‘prism’), where layers of the deformed and metamorphosed sediments and ocean crust are thrust onto the South American Plate along faults – or thrust planes – adding to the size of the continent.