Depositional elements associated with a basin floor channel-levee system:case study from the Gulf of Mexico

摘要

The seismic geomorphology and seismic stratigraphy of a deep-marine channel-levee system is described.A moderate to high-sinuosity channel trending southeastward across the northeastern Gulf of Mexico basin floor,and associated depositional elements are well imaged using conventional 3D multi-channel seismic reflection data.Depositional elements described include channels,associated levees,a channel belt,avulsion channels,levee crevasses,frontal splays,sediment waves,and mass transport complexes.Distinguishing morphologic and stratigraphic characteristics of each depositional element are discussed.These deposits are pressure to be associated with repeated deepmarine turbidity flows and other mass transport processes.