Multiphase Extensional Structures, Fault Reactivation, and Petroleum Plays in the Alpine Foreland Basin of Southeastern France

Jurassic and Oligocene extensional structures are still well preserved in the compressional basin of southeastern France. Due to the occurrence of numerous potential decollement levels (i. e., the Carboniferous coal measures, the Triassic evaporites, the Jurassic blackshales, or the Neocomian marls), these structures frequently independently involve the crystalline basement and the sedimentary cover, thus illustrating various structural styles that are clearly imaged in seismic profiles.