Uplift (Tectonic)

Tectonic uplift is the vertical rise of the Earth’s crust driven by tectonic forces rather than by erosion or sea-level change. Drivers include crustal thickening at convergent margins, isostatic rebound as load is removed, magmatic underplating, and flexure near faults. Rates span a wide range, from under a millimeter to roughly ten millimeters per year in the fastest collision zones, and they shape mountain belts, raised marine terraces, and emergent shorelines. On margins it changes shelf width, gradient, and sediment routing. Tectonic uplift is distinguished from apparent uplift caused by a falling sea level, though both expose former seabed.