Answer: continents colliding
Continental drift is the hypothesis that the Earth’s continents have moved over geologic time relative to each other thus appearing to have “drifted” across the ocean bed. The speculation that continents might have ‘drifted’ was first put forward by Abraham Ortelius in 1596. The concept was independently and more fully developed by Alfred Wegener in 1912 but his hypothesis was rejected by …
Mountain range – Wikipedia
Geology of the Rocky Mountains – Wikipedia
Mountain range – Wikipedia
So that Émile Argand (1916) speculated that the Alps were caused by the North motion of the African shield and finally accepted this reason 1922 following Wegener’s Continental drift theory (Argand 1922 as Staub 1924). Otto Ampferer in the meantime at the Geological Society Meeting in Vienna held on 4 April 1919 defended the link between …
A mountain range or hill range is a series of mountains or hills ranged in a line and connected by high ground. A mountain system or mountain belt is a group of mountain ranges with similarity in form structure and alignment that have arisen from the same cause usually an orogeny. Mountain ranges are formed by a variety of geological processes but most of the significant ones on Earth are …
Mountain formation refers to the geological processes that underlie the formation of mountains .These processes are associated with large-scale movements of the Earth’s crust (tectonic plates).Folding faulting volcanic activity igneous intrusion and metamorphism can all be parts of the orogenic process of mountain building. The formation of mountains is not necessarily related to the …
Plate tectonics (from the Late Latin: tectonicus from the Ancient Greek: τεκτονικός lit. ‘pertaining to building’) is a scientific theory describing the large-scale motion of seven large plates and the movements o…