Deformation structural style of the rioni foreland fold-and-thrust belt, western greater caucasus: Insight from the balanced cross-section

The Rioni foreland fold-and-thrust belt is part of the Greater Caucasus pro-wedge and one most important examples collision-driven far-field deformation Arabia-Eurasia convergence zone. Here we show structural style based on seismic reflection profiles regional balanced cross-section. main within represented by a set fault-propagation folds, duplexes, triangle cross-section shows that folds above upper detachment level can develop piggyback break-back thrust sequences. Formation fault-bend fold duplex structures lower related to A section restoration compressional across provides minimum estimate shortening −40%, equivalent −42.78 km. synclines are filled Middle Miocene-Pleistocene shallow marine continental syn-tectonic sediments, forming series typical thrust-top basins. Fault-propagation formed structure basin. evolution basins was mainly controlled kinematics Using end-member modes sequences, divided into: 1) Type I-piggyback basin, 2) II-break-back 3) III—formation basin characterized bi-vergent geometry combined, back