Alpine orogeny
The mountain-building episode driven chiefly by convergence of the African and Eurasian plates, forming the Alps and several neighboring ranges.
African Plate: A tectonic plate carrying Africa and parts of the surrounding ocean floor. Its northward motion helped drive convergence with Eurasia.
Orogeny: A prolonged episode of mountain building caused by tectonic deformation, magmatism, and crustal thickening. The Alpine episode is one regional example of this broader process.
Alps: A major European mountain range extending in an arc from the Mediterranean region toward central Europe. They are the defining range formed by the Alpine orogeny.
Gondwana: An ancient southern supercontinent that included Africa, South America, Antarctica, Australia, and India. Africa's earlier position within Gondwana frames the plate motions preceding Alpine convergence.
Alpine topography: The landforms and elevations of the Alps, shaped by tectonic uplift, erosion, and glaciation. It expresses the combined effects of mountain building and later surface processes.
Eurasian Plate: A tectonic plate underlying most of Europe and much of Asia. Its margin collided with crust moving north from the African realm.
Fold and thrust belt: A zone of folded and faulted rocks formed by horizontal compression, commonly at a mountain belt's front. Alpine shortening produced thrust sheets and folds along the range's margins.
Apennines: A mountain chain running along much of the Italian peninsula. Their formation is linked to the wider convergence and changing plate boundaries of the Alpine region.
Pangaea: A supercontinent that assembled most of Earth's landmasses during the late Paleozoic and early Mesozoic. Its breakup initiated the plate rearrangements that eventually opened and closed the Tethys realm.
Alpine glaciation: The repeated growth and retreat of glaciers in the Alps during past cold periods. Glaciers reshaped valleys and peaks after tectonic uplift established the range.