沉积学
碳酸盐
地质学
地球化学
古生物学
材料科学
冶金
作者
Kelly Fauquembergue,Thierry Mulder,John J. G. Reijmer,Vincent Hanquiez,Christian Betzler,Emmanuelle Ducassou,Audrey Recouvreur,Mélanie Principaud,Jean Borgomano,Stephen R. Wilk,Emmanuelle Poli
摘要
Abstract Slopes adjacent to the Bahamian carbonate platform revealed a large variety of depositional processes. In this study, we present a synthesis summarizing 109,000 km 2 of bathymetric and reflectivity data with ∼7,900 km of seismic lines and 311 m of sediment cores that were obtained over the last 50 years. These data are used to develop a conceptual model of sedimentation patterns on Quaternary carbonate slope systems and their interaction with the adjacent shallow‐water carbonate platforms. Our data highlight that during the Quaternary, factors controlling large‐scale sedimentation on Bahamian slopes have numerous similarities as they have higher sedimentation rates during interglacials. At a small scale, every slope has its own characteristics that are contemporary controlled by two main characteristics: (a) facies on the adjacent shallow‐water platform, and (b) the impact of shallow‐ and deep‐water currents. Large‐scale tectonics influence sediment deposition as it determines the position of the islands and impacts platform facies distribution.
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