Akademik Veri Yönetim Sistemi
69th European Association of Geoscientists and Engineers Conference and Exhibition 2007 -, London, İngiltere, 11 - 14 Haziran 2007, cilt.3, ss.1449-1455
Seismic reflection profiles were interpreted to investigate formation mechanisms of salt withdrawal minibasins, and minibasin adjustment during differential sedimentary loading by prograding delta margin sediments. The main topic was to recognize the sensitivity to the salt mobilization and the sedimentary overburden effect and to understand the processes driving the differences in deformation styles. The minibasin formation, the overall salt evacuation, and structural styles of salt-induced disharmonies are very sensitive to buoyancy effects, with the large density contrast producing a wide range of syn-diapir sediment wedges/packages and/or syn-sedimentary minibasin chains basically driven by salt evacuation process. Delta sediment progradation caused a differential sedimentary loading on the underlying viscous salt, inducing the system to become unstable, and resulting in landward extension accommodated by seaward contraction. Salt displaced basinward by growth faults is overridden by delta sediments, and thus, salt diapirs are constrained by thick marginal sediments basinward directions. Lateral withdrawal of salt causes a loss of volume in diapirs compensated by the formation of the faults flanking the growing diapirs. Gravitational instabilities, the released gravity-potential energy, salt withdrawing, the very unstable end-member flow patterns and minibasin forms are the result of halokinesis-induced unstable shelf-margin dynamics of the basin.