Provisions for generation of local structures at Ustyurt and Pre-Caucasus regions
This article highlights reshaping of the local platform structures at the Ustyurt and Pre-Caucasus regions. The following types of tectonic local swells are outlined and examined: the structures which have originated against the background of the inversion taphrogens; the ancient structures, which have not been related to the taphrogens; the young structures.The ancient structures mostly have long (multiphase) history of forming. At that, they have been growing with different kinematic features: more commonly, accelerated growth have occurred in the initial phases. These structures have been rising against the background of general downwarping and sedimentation. In certain cases, formation of the local structures (either related, or not related to taphrogens) has started already in the end of a transition period before origination of their own platform mantles and formation of the big platform tectonic elements.The young structures mostly have short (singlephase) history. They have formed during the epoch of Neogene tectonic energization following the general uprising and break of sedimentation.Analyzing the gradual development of the particular structures, authors described the influence of paleotopography in case the endogenous cause is obviously superior.