Back Orogenia andina Spanish Orogenèse andine French Orogenesi andina Italian Andska orogeneza SL Andinska orogenesen Swedish Андська складчастість Ukrainian 安第斯造山運動 Chinese
The Andean orogeny (Spanish: Orogenia andina) is an ongoing process of orogeny that began in the Early Jurassic and is responsible for the rise of the Andes mountains. The orogeny is driven by a reactivation of a long-lived subduction system along the western margin of South America. On a continental scale the Cretaceous (90 Ma) and Oligocene (30 Ma) were periods of re-arrangements in the orogeny. The details of the orogeny vary depending on the segment and the geological period considered.