How do continents collide to form giant mountain ranges?

Continental collision is a plate tectonics phenomenon occurring at convergent boundaries where subduction zones are destroyed, mountains are formed, and continents are sutured together. This process takes tens of millions of years and involves intense faulting, folding, and crustal compression. It is a slow, ongoing process known to happen only on Earth.

What we know

• Continental collision is a variation of subduction that destroys subduction zones, produces mountains, and sutures two continents together. [2]
• Continental collision is an extended event that can take several tens of millions of years for folding and faulting to stop. [2]
• The collision between India and Asia has been progressing for roughly 50 million years. [2]
• Orogeny involves structural deformation of existing crust and the creation of new continental crust through volcanism. [4]

Still open

• The exact onset timing of the continental collision between India and Asia remains controversial and widely debated.

Where to go next

• the bigger pictureWhat is plate tectonics?
• a case in pointHow did the Appalachian Mountains form?
• whenHow long does a continental collision take?
• how it workedHow does subduction lead to mountain building?
• what followedWhat effects does mountain building have on regional climate?
• an unexpected connectionHow does ancient continental collision link modern Alabama to Newfoundland?The collision between Africa and North America during the Alleghanian orogeny left surface evidence spanning hundreds of kilometres from Alabama to New Jersey and up into Newfoundland.

Sources

• [1]continental collision (Wikidata Q2623458) · CC0 1.0
• [2]Continental collision · CC BY-SA 4.0
• [3]Paleogeography of the India–Asia collision system · CC BY-SA 4.0
• [4]Orogeny · CC BY-SA 4.0
• [5]Alleghanian orogeny · CC BY-SA 4.0

Your path

1. How did scholasticism use dialectical reasoning?
2. /How do continents collide to form giant mountain ranges?