Breakpoint Match Tracing- a New Method for the Three Dimensional Reconstruction of Regional Tectonics

The method of breakpoint-match-tracing is a new numerical simulation one to reconstruct the fault deformation process in three-dimensional space. This method, however, based on the spatial data relationship of three dimensional geological bodies, will reconstruct their original relationship result from using match path to trace the breakpoint and computation. Through picking up the breakpoint in any fault surface and considering as the research object, and defining the sets of breakpoint as the reconstruction path for the hanging-wall and footwall, this method will provide the boundary condition for the tectonic deformation. The regional fault blocks would be concurrently reconstructed combining with the MassSpring Equation and use it to be as parallel computation. In this paper, the three dimensional tectonic reconstruction and simulation for the branched faults of Archean top, distributed in Bohai Bay Basin, were achieved using this method, and the geometric shape for the different stages and the corresponding analysis related to the whole deformation procedure were all also discussed. Taking the tectonic deformation stage as the model output node, aimed at vividly reconstructing the geometric configuration of fault and fault block, and thus the whole tectonic deformation can be fully analyzed during the whole tectonic deformation procedure.