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波罗的本海地表纹层沉积物的形成不断扩大的现象为我们评价过去40年里沉积物积累的年际变化增加了可能性。同一时期,在Gotska Sand(?)n我们连续记载了这个地区的风速和风向。在39km~2范围内,收集了55个岩心,从中选取了3个具有明显纹层的沉积物岩心,对它们的细微结构进行了研究,结果发现,干物质的年累积量和大风出现的频率正相关,风力达到14m/s时,两者关系为最佳。这证实了再次悬浮的沉积物在沉积物积累中占很大比重的观点,在115～145m深处收集的25个地表纹层的岩心,其沉积物积累的平均速率为2mm/a。我们对暴风雨发生的频率和沉积物沉积在10年间的变化都进行了观测,两者的变化可能不仅说明了沉积物及有关营养物和污染物的周转,而且还使我们能用沉积物岩心作为历史档案库来做一些解释。对所有岩心中已确定年代的沉积层进行水平方向的比较揭示了深水条件下物质变化的情况。最近,海底动物群再次大面积定居在水深102～125m范围内的现象说明,90年代早期的暴风雨事件极大地提高了氧的条件。尽管在我们的样品中纹层沉积物生物搅动的深度范围在0.5～5.5cm,但却造成了氧条件很早就已经提高了的假象。
The growing presence of ballooning of the mesozoic sediments adds to the possibility of evaluating the interannual variability of sediment accumulation over the past 40 years. In the same period, at Gotska Sand (?) N we recorded the wind speed and direction in the area continuously. In the range of 39km ~ 2, 55 cores were collected and three sedimentary cores with obvious laminae were selected. Their microstructures were studied. The results showed that annual cumula- tion of dry matter and frequency of gale Positive correlation, the wind reached 14m / s, the relationship between the best. This confirms the view that resuspended sediments account for a large proportion of sediment accumulation, and that for cores of 25 surface terrains collected at depths of 115 to 145 m, the average rate of sediment accumulation is 2 mm / a. We have observed both the frequency of storm events and changes in sediment deposition over 10 years, both of which may not only account for the turnover of sediments and associated nutrients and pollutants, but also enable us to use sediment cores as Historical archives to do some explanation. A horizontal comparison of the sedimentary layers in all of the cores in all cores revealed changes in the material under deep water conditions. The recent large-scale settlement of the seabed fauna in the water depth of 102-125 m shows that the storm events of the early 1990s greatly increased the oxygen conditions. Although the depth of biological agitation of striated sediments ranges from 0.5 to 5.5 cm in our samples, it has the illusion that oxygen conditions have been elevated long ago.