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本文报道了笔者于渤海湾采集的9个柱样品,用~(210)Pb法测定的现代沉积速率;~(210)Pb剖面揭示出人类和自然原因所产生的沉积事件。并对该湾的沉积过程进行了探讨。 海河口844站~(210)Pb剖面反映出六十年代初,天津新港进行水下工程时出现瞬时堆积的记录;1041站记录了1964年一次雍潮出现的高速沉积带。从而,表明人类和自然对现代沉积作用的贡献,并且,指出这对海洋工程、沉积学及环境科学研究均十分重要。
In this paper, we report nine sedimentary samples collected by the author in the Bohai Bay and measured by the ~ (210) Pb method. The ~ (210) Pb profile reveals sedimentary events from human and natural causes. The deposition process of the bay was discussed. The profile of ~ (210) Pb at Haihekou Station 844 reflects the instantaneous accumulation of water during the construction of Tianjin New Port in the early 1960s. The 1041 station recorded a high-velocity sedimentary zone that occurred in 1964 at Yongzheng. Thus, it shows the contribution of mankind and nature to modern sedimentation and points out that this is very important for ocean engineering, sedimentology and environmental science research.