STRUCTURAL RECONSTRUCTION OF NW SABAH: THE PREPARATION AND IMPORTANT STEPS IN RESTORATION FOR ONSHORE AND OFFSHORE DATA

One of the ways to study and understand the history of deformation and structural evolution of an area is by using the structural reconstruction technique based on the outcrops and seismic data. The objectives of this paper are to study the reconstruction processes and determine suitable algorithms for restoration of structures in an extensional and compressional regime. Structural reconstruction is tested to understand the evolution of the Kudat Peninsula, which eventually will illustrate the pre-deform condition of the area prior to the structuring and deformation events. The reconstruction process involves the importing of input and parameter, determining the section trace, digitizing the structures from the cross-sections, creating the polygons, data allocation and restoring the section using the best method provided in Move software. Both onshore and offshore cross-sections are used in section reconstruction and later developed into a kinematic model to represents the deformation history of the area. Fault Parallel Flow (FPF), Simple Shear (SS) and Trishear algorithms are suitable methods for the restoration of the structures in the Kudat Peninsula and its offshore. Keywords: Kudat Peninsula, Move software, kinematic model, outcrops, seismic data