How Were The Andes Mountains Formed

Cordillera de los andes are the longest continental mountain range in the world forming a continuous highland along the western edge of south america. 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.

Nazca Plate Wikipedia

The collision or convergence of two of these plates the continental south american plate and the oceanic nazca plate gave rise to the orogenic mountain building activity that produced the andes.

How were the andes mountains formed. Many of the rocks comprising the present day cordilleras are of great age. The andes mountains were formed from the subduction of the nazca plate beneath the south american plate. These rocks contain ancient soils used to decipher the surface temperature and surface uplift history of the southern altiplano.

These are the plateau regions formed between the parallel mountain ranges found in the central and western regions of the andes. The andes are a large volcanic chain of mountains that run the length of the west coast of south america along the boundary between the south american and nazca plates. To get such a high mountain chain in a subduction.

The gradual subduction of the nazca plate beneath the south american plate drives a convection cycle that pushes molten material to the surface and contributes to the uplift of the andes. To get such a high mountain chain in a subduction. The andes were formed by tectonic activity whereby earth is uplifted as one plate oceanic crust subducts under another plate continental crust.

The inclination of the cordillera oriental mountain chain towards the east is also one of the reasons forming the intermontane plateau that joins segments of the range spread across different countries. Subduction occurs when one tectonic plate is forced beneath another as tectonic plates collide. The andes mountains stretch across six countries for more than 7 000 km.

The andes were formed by tectonic activity whereby earth is uplifted as one plate oceanic crust subducts under another plate continental crust. The andes mountains of south america were similarly formed after the nazca plate subducted under the south american plate a geological process which is still ongoing. Andes mountains formed by growth spurts april 21 2014 sedimentary deposits near cerdas in the altiplano plateau of bolivia.

The range is 7 000 km 4 300 mi long 200 to 700 km 120 to 430 mi wide widest between 18 south and 20 south latitude and has an average height of about 4 000 m 13 000 ft. The andes andes mountains or andean mountains spanish. The andes were formed by tectonic activity whereby earth is uplifted as one plate oceanic crust subducts under another plate continental crust.

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