(Table 2) Presence of plant remains in sediment core GIK14973, northern Kattegat@en

For the first time detailed physical properties were measured in addition to sedimentological parameters of near surface sediments of Kattegat channel system. This study has been accomplished on two sediment cores of different waterdepth of each Alkor-deep and Littorina-deep. The sediments of Littorina-deep, which have been dated with 210Pb-method, turned out to be surprisingly recent, with sedimentation rates up to 3,2 cm/year. Differences in physical properties lead to the assumption of lower sedimentation rates in Alkor-deep, the velocities of bottom and deepwater currents could be the cause of these differences in sedimentation rates. In Alkor-deep, the morphology runs parallel to the main direction of the bottom current. Therefore higher current velocities can be reached, which favor the erosion of fine sediment particles. Littorina-deep is located rectangular to the main direction of bottom currents. This might lead to an 'overflow' situation instead of a 'flow through'.本研究首次对卡特加特海峡槽谷系统（Kattegat channel system）的近表层沉积物开展了沉积学参数与详细物理性质的同步测量。本次研究选取了阿尔科深渊（Alkor-deep）与利托里纳深渊（Littorina-deep）两个不同水深的沉积物岩芯作为研究对象。利托里纳深渊的沉积物经210Pb测年法（210Pb-method）测定后，其沉积年代异常年轻，沉积速率最高可达3.2厘米/年。沉积物物理性质的差异表明，阿尔科深渊的沉积速率相对更低，而底流与深层水流的流速差异或是造成该沉积速率差异的原因。阿尔科深渊的地形与底流主流向平行，因此此处可形成更高的水流流速，更易侵蚀细粒沉积物颗粒。利托里纳深渊的位置与底流主流向呈直角分布，这可能使其形成“溢流”而非“顺流通过”的水动力环境。