Multi-channel seismic, 3.5-kHz Chirp seismic, and multibeam bathymetric data were collected along the western Black Sea margin, offshore Sakarya River, to investigate the morphology and to evaluate the potential geologic hazards. The multibeam bathymetric data show that the morphology of the margin is controlled by the Sakarya Canyon consisting of three distinct canyon heads, all incising the southern continental shelf. Deep-water sediment erosion along the canyon walls and scour marks along the distal canyon floors indicate that both Sakarya and Kefken Canyons may be active in terms of sediment erosion and turbidity currents. We identify the depositional and erosional features in the area by means of echo-character mapping. The distribution of different echo-types is mainly controlled by the morphology of the margin, as well as the shape, location, and structure of the major canyon systems. Erosional features, constituting 47% of the total surficial area, are classified as slides, erosional truncations, gravitational mass wasting, gullies, and outcropping seafloor while depositional features, constituting 53% of the total surficial area, comprise shelf sediments, turbidites, pelagic/hemi-pelagic sediments, and sediment waves. Different types of geohazards coexist along the Sakarya Canyon, which are classified as hazards linked to (1) local and/or regional tectonism, (2) morphology of the continental margin (turbidity currents, slope overstepeening), and (3) prevailing sedimentary processes (mass transports, submarine fluid flow, loss of support due to the truncation scarps and bedforms).

沿萨卡里亚河黑海西部边缘收集了多通道地震，3.5 kHz Chirp地震和多波束测深数据，以研究形态并评估潜在的地质灾害。多波束测深数据表明，边缘的形态受到萨卡里亚峡谷的控制，该萨卡里亚峡谷由三个截然不同的峡谷首部组成，均切开了南部大陆架。沿峡谷壁的深水沉积物侵蚀和沿远侧峡谷底部的冲刷痕迹表明，萨卡里亚峡谷和凯夫肯峡谷在沉积物侵蚀和浊流方面均可能活跃。我们通过回波字符映射确定该区域的沉积和侵蚀特征。不同回波类型的分布主要受边缘形态和形状的控制，主要峡谷系统的位置和结构。占地表总面积47％的侵蚀特征被分类为滑坡，侵蚀截断，重力质量浪费，沟壑和露头海底，而占地表总面积53％的沉积特征则包括陆架沉积物，浊积体，浮游/半上层沉积物和沉积物波。萨卡里亚峡谷沿岸共存着不同类型的地质灾害，这些地质灾害被归类为与（1）局部和/或区域构造，（2）大陆边缘的形态（浊流，坡面超阶）和（3）普遍的沉积过程有关的灾害。 （大量运输，海底流体流动，由于截断的斜角和床形而失去支撑）。占表层总面积的47％，被分类为滑坡，侵蚀截断，重力物质浪费，沟壑和露头海底，而沉积特征（占总表层面积的53％）则包括架子沉积物，浊积体，浮游/半浮游上层沉积物和沉积物波。萨卡里亚峡谷沿岸共存着不同类型的地质灾害，这些地质灾害被归类为与（1）局部和/或区域构造，（2）大陆边缘的形态（浊流，坡面超阶）和（3）普遍的沉积过程有关的灾害。 （大量运输，海底流体流动，由于截断的斜角和床形而失去支撑）。占表层总面积的47％，被分类为滑坡，侵蚀截断，重力物质浪费，沟壑和露头海底，而占表层总面积53％的沉积特征则包括架子沉积物，浊积岩，浮游/半浮游上层沉积物和沉积物波。萨卡里亚峡谷沿岸共存着不同类型的地质灾害，这些地质灾害被归类为与（1）局部和/或区域构造，（2）大陆边缘的形态（浊流，坡面超阶）和（3）普遍的沉积过程有关的灾害。 （大量运输，海底流体流动，由于截断的斜角和床形而失去支撑）。占表层总面积的53％，包括架子沉积物，浊积石，浮游/半浮游沉积物和沉积物波。萨卡里亚峡谷沿岸共存着不同类型的地质灾害，这些地质灾害被归类为与（1）局部和/或区域构造，（2）大陆边缘的形态（浊流，坡面超阶）和（3）普遍的沉积过程有关的灾害。 （大量运输，海底流体流动，由于截断的斜角和床形而失去支撑）。占表层总面积的53％，包括架子沉积物，浊积石，浮游/半浮游沉积物和沉积物波。萨卡里亚峡谷沿岸共存着不同类型的地质灾害，这些地质灾害被归类为与（1）局部和/或区域构造，（2）大陆边缘的形态（浊流，坡面超阶）和（3）普遍的沉积过程有关的灾害。 （大量运输，海底流体流动，由于截断的斜角和床形而失去支撑）。