Accretionary orogens form at convergent plate boundaries where oceanic lithosphere is subducted. They include forearc, magmatic arc, and back-arc components and are classified into retreating and advancing types based on their kinematic framework. Retreating orogens, such as the western Pacific, experience extension due to subduction retreat, forming back-arc basins. Advancing orogens, like the Andes, involve overriding plate movement towards the downgoing plate, leading to crustal thickening and foreland fold-and-thrust belts. Cratonization occurs through transient coupling across plate boundaries, involving strain concentration in zones like the magmatic arc and back-arc. Accretionary orogens have been active throughout Earth history, contributing to continental growth and consumption. They are important for understanding crustal growth and destruction rates, which are roughly equal, implying net zero growth since the Archaean. Classic orogen models involve Wilson cycles with continent–continent collision, but accretionary orogens, such as the Alpine–Himalayan and Cordillera, are non-collisional and involve ongoing subduction. Accretionary orogens are major sites of mineralization and have been active in ancient examples like the Trans-Hudson orogen. They form at subduction zones, including accretionary wedges, island arcs, and back-arc basins. Accretionary orogens are crucial for understanding tectonic processes and crustal evolution. They are classified into collisional, accretionary, and intracratonic types. Accretionary orogens are associated with significant mineral deposits and have been studied in regions like Japan and North America. They are characterized by a range of igneous and sedimentary rocks, and their structures are influenced by tectonothermal events. Seismic studies have provided insights into their deep structures, such as the Nankai and Tonanki subduction zones. Accretionary orogens are important for understanding the Earth's geological history and the processes of crustal growth and destruction.Accretionary orogens form at convergent plate boundaries where oceanic lithosphere is subducted. They include forearc, magmatic arc, and back-arc components and are classified into retreating and advancing types based on their kinematic framework. Retreating orogens, such as the western Pacific, experience extension due to subduction retreat, forming back-arc basins. Advancing orogens, like the Andes, involve overriding plate movement towards the downgoing plate, leading to crustal thickening and foreland fold-and-thrust belts. Cratonization occurs through transient coupling across plate boundaries, involving strain concentration in zones like the magmatic arc and back-arc. Accretionary orogens have been active throughout Earth history, contributing to continental growth and consumption. They are important for understanding crustal growth and destruction rates, which are roughly equal, implying net zero growth since the Archaean. Classic orogen models involve Wilson cycles with continent–continent collision, but accretionary orogens, such as the Alpine–Himalayan and Cordillera, are non-collisional and involve ongoing subduction. Accretionary orogens are major sites of mineralization and have been active in ancient examples like the Trans-Hudson orogen. They form at subduction zones, including accretionary wedges, island arcs, and back-arc basins. Accretionary orogens are crucial for understanding tectonic processes and crustal evolution. They are classified into collisional, accretionary, and intracratonic types. Accretionary orogens are associated with significant mineral deposits and have been studied in regions like Japan and North America. They are characterized by a range of igneous and sedimentary rocks, and their structures are influenced by tectonothermal events. Seismic studies have provided insights into their deep structures, such as the Nankai and Tonanki subduction zones. Accretionary orogens are important for understanding the Earth's geological history and the processes of crustal growth and destruction.