Seismic Facies and Sedimentary Processes of Submarine Fans and Turbidite Systems: An Overview
The geologic community’s understanding of submarine fans and turbidite systems has grown considerably during the past two decades. The geologic literature has proliferated with contributions addressing primarily the sedimentology and stratigraphy of ancient turbidites exposed in outcrops, and of modern submarine fans, as imaged with high-resolution, shallow-penetration seismic, and side-looking imaging systems and piston cores. A disparity has emerged in our understanding of how fan systems evolve because of the differing perspectives afforded by different data bases. Interpretations based on large-scale stratal geometries defined by seismic-reflection data sometimes conflict with interpretations based on fine-scale outcrop features such as bedding geometries and sedimentary structures (Bouma et al., 1985b). Multifold seismic-reflection data provide an important link in comparing the outcrop-scale and modern submarine fan-scale features. These type of data are best used in a regional context to describe both ancient and modern submarine fans, but they have been generally underrepresented and underutilized in the development of submarine fan models, primarily because much of the available data is proprietary.
KeywordsFacies Association Sedimentary Process Seismic Facies Seismic Stratigraphy Turbidite System
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