Studies of the most surficial sedimentary record from passive continental margins provide crucial knowledge about sedimentary dynamics and its changes through recent geological times. These studies allow understanding in detail the influence of both tectonic activity and long-term bottom-current circulation over the Late Quaternary sedimentary dynamics. Using a large dataset of multibeam bathymetry, chirp and multi-channel seismic (MCS) records, ROV seabed direct observations and a magneto-chemical facies characterisation, we provide a well-dated record of the tectono-sedimentary processes on an isolated high marginal platform over the Late Quaternary. Our results display several structural and geomorphological features and tectonic pulses that indicate intense faulting, folding, and deformation of the most recent sedimentary cover. Furthermore, we document four main sedimentary systems acting at the study area and controlled by different water masses (MOW, LSW and NADW): the (hemi)pelagic, bottom current-controlled (hemi)pelagic, contourite and downslope sedimentary systems; as well as a new typology of contourite associated to giant depressions, named as pockmarks-related drift. The record also shows erosive features and extremely low sedimentation rates for the last 172 cal ka BP. Results suggest that the topographic configuration of the high marginal platform and reorganizations of the water masses associated to climate changes causes a constriction of the water masses that induce an enhancement of the bottom-current activity, favouring erosion, winnowing and redistribution of sediments. Therefore, this study provides new insight into the tectonic control and bottom current activity effect over the Late Quaternary sedimentary cover from an isolated and elevate offshore morphostructural province, located at the Galician Continental Margin.

对被动大陆边缘最表面沉积记录的研究提供了有关沉积动力学及其在最近地质时期的变化的重要知识。这些研究可以详细了解构造活动和长期的底流环流对第四纪晚期沉积动力学的影响。利用大型数据集的多波束测深，chi和多通道地震（MCS）记录，ROV海底直接观测以及磁化学相表征，我们在孤立的高边际平台上提供了构造-沉积过程的良好记录。在第四纪晚期。我们的结果显示了几个结构和地貌特征以及构造脉冲，表明最新沉积盖层的强烈断层，折叠和变形。此外，我们记录了作用于研究区域并受不同水量（MOW，LSW和NADW）控制的四个主要沉积系统：（半）上层，底部电流控制的（半）上层，轮廓岩和下坡沉积系统；以及与巨大凹陷相关的新型轮廓石类型，称为麻子相关漂移。该记录还显示了最后172 cal ka BP的侵蚀特征和极低的沉积速率。结果表明，高边缘平台的地形结构和与气候变化相关的水团的重组导致水团的收缩，从而导致底流活动的增强，有利于沉积物的侵蚀，刮风和重新分布。因此，