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Some structural and sedimentary features of extensional basin
Roll over fold, onlap, and pinchout

The development of extensional basin above a décollement is associated with the formation of a roll over anticline. The progressive rotation of the surface of the basin is responsible for the “onlap” deposition of layer. In contrast drop of sea level creates “pinchout”.

Rift Basin Inversion
It has long been recognized that the many rift basins in the world contain a wide variety of post-rift compressional structures. Many of these features involve reutilization of normal fault that were active during extension, and hence they are referred to as inversion structures. Inversed basin are they are prime target for oil and gas exploration.