Back تكتونية توسعية Arabic Extension (Geologie) German Tectónica extensional Spanish زمینساخت کششی FA Extension (géologie) French Tektonika ekstensional ID Extensietektoniek Dutch Ekstensja (geologia) Polish Extenzia (geológia) SK 伸展構造 Chinese
Extensional tectonics is concerned with the structures formed by, and the tectonic processes associated with, the stretching of a planetary body's crust or lithosphere.