Mountain Building
4 questions tagged Mountain Building — spanning every one of the seven Ws.
Why are some mountain ranges still rising?
Some mountain ranges are still rising because tectonic plates continue to collide and thicken the crust. In places like the Himalayas, uplift still outpaces erosion in many areas.
Whose work first explained how mountains form by collision?
Alfred Wegener and later plate tectonics researchers explained mountain building as a result of continental collision. The Himalayas formed when India collided with Asia.
Where are the Andes Mountains uplifted by ongoing plate collision?
The Andes run along the western edge of South America, from Venezuela to southern Chile and Argentina. They formed mainly from the subduction of the Nazca Plate beneath the South American Plate.
How do mountain ranges continue to rise after a continent-to-continent collision?
Crust shortens and thickens as plates push together, and buoyant continental rock rides higher on the mantle. Ongoing uplift can continue for millions of years while erosion removes material from the surface.