Petrofabric Analysis of Seismic Anisotropy in Siliciclastic Sedimentary Rocks

P348 Petrofabric analysis of seismic anisotropy in siliciclastic sedimentary rocks Abstract 1 Factors that control seismic anisotropy in rocks include: oriented fractures or porosity spatial distribution of mineral phases and the crystallographic lattice preferred orientation (LPO) of mineral phases. However the relative importance of each factor in producing seismic anisotropy in any given rock type is often unknown. Using Scanning Electron Microscope-Electron Back Scattered Diffraction (SEM-EBSD) it is possible to determine the crystallographic orientation of mineral phases and hence assess the influence of LPO on seismic anisotropy. The LPO of each constituent mineral are combined and used to derive the