Abstract:Kinematic vorticity analysis is a crucial method for determining the relative proportions of pure shear and simple shear components in ductile shear zones, significant advances have been achieved in in- depth research over past decade.This paper reviews five innovative approaches for kinematic vorticity analysis, spatio- temporal variations in kinematic vorticity and the correlation between strain and kinematic vorticity in different shear zone types. The following insights are obtained: These innovative methods are of great importance in some special circumstance: Combining ellipsoid subgrain analysis and Rxz/δ methods with traditional oblique foliation techniques allows finer constraints on late- stage kinematic vorticity changes; 3D strain ellipsoid methods and magnetic foliation method serve as important alternatives when actual markers are absent; CVA analysis helps identify the VNS, determine shear type and recognize polyphase deformation. We can aquire the deformation path and deformation partitioning characteristic in different kinds of shear zones by analysing the spatio- temporal variations in kinematic vorticity: detachment shear zones typically exhibit an accelerate- decelerate deformation path, with increasing or decreasing vorticity toward the detachment plane; Thrust shear zones generally show a decelerate deformation path, with vorticity increasing toward the thrust plane; Strike- slip shear zones may display either accelerate- decelerate or decelerate patterns, often with higher vorticity at the center or gradual lateral variations. Besides,the types of shear zones and accompanying geological processes can influence the correlation between strain and kinematic vorticity:In detachment shear zones, if the strain is contributed by magma diapir and vertical exhuming, the correlation between strain and kinematic vorticity is predominantly negative; If the strain is contributed by activation of the detachment fault, the correlation between strain and kinematic vorticity is predominantly positive . In thrust zones, the correlation is commonly positive. In strike- slip shear zones, the correlation is generally positive, but it becomes negative if the strain is predominantly contributed bycompressive component. Future research should strengthen efforts in the comprehensiveness of method selection, regional- scale kinematic vorticity analysis, interpretation of kinematic vorticity variations along the strike, and the application of physical and numerical simulation methods.