Tectono-thermal evolution of central Transcaucasia: Thermal modelling, seismic interpretation, and low-temperature thermochronology of the eastern Adjara-Trialeti and western Kura sedimentary basins (Georgia)

Gusmeo, Thomas; Schito, Andrea; Corrado, Sveva; Alania, Victor; Enukidze, Onise; Zattin, Massımılıano; Pace, Paolo; Cavazza, William

doi:10.1016/j.jseaes.2022.105355

Cited by 4 publications

(1 citation statement)

References 99 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Deformation of the Rioni double flexural foreland basin (Banks et al, 1997) was controlled by the action of two opposing orogenic fronts, the LC retro-wedge to the south and the GC pro-wedge to the north (Alania et al, 2021a). The tectonic evolution of LC and GC is the result of the Arabia-Eurasia collision during Alpine times, which led to the inversion of back-arc basins and the formation of two orogens with the Rioni and Kura foreland basins in between (Figure 1B) (e.g., Adamia et al, 1981;Sobornov, 1996;Banks et al, 1997;Mosar et al, 2010;Nemcok et al, 2013;Cowgill et al, 2016;Sosson et al, 2016;Tari et al, 2018;Alania et al, 2021a;Alania et al, 2021b;Alania et al, 2021c;Corrado et al, 2021;Gusmeo et al, 2021;Gusmeo et al, 2022;Tari et al, 2021;Cowgill et al, 2022;Mosar et al, 2022). The Rioni and Kura foreland basins in turn are divided from each other by the Imereti Uplift Zone (IUZ) (Figure 1B).…”

Section: Geological Settingmentioning

confidence: 99%

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

et al. 2022

Self Cite

View full text Add to dashboard Cite

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

show abstract