可活化稳定同位素示踪法研究泥沙运动初探  

A preliminary investigation of silt motion with activable stable isotope tracers

作　　者：马建国[1] 梁之芳 毛雪瑛[1] 马淑兰[1] 茅志祥[2] 严佩岚[2] 

机构地区：[1]中国科学院高能物理研究所 [2]南京水利科学研究院

出　　处：《核技术》1990年第10期612-616,共5页Nuclear Techniques

摘　　要：采用高灵敏度的中子活化分析技术,利用天然泥沙中的可活化稳定同位素作示踪剂,对汕头港区的泥沙运动进行了初步研究,测量了不同地点的悬沙和底沙样品中的二十多种微量元素含量。数据分析与计算机拟合结果表明,不同地点的悬沙样品属于同一来源,悬沙由新津溪河口向外扩散;外拦江沙航道中的底沙中约有37％的成分来源于悬沙的沉积。A preliminary investigation of silt motion in Shantou Harbor region has been made by using neutron activation analysis of natural activable stable isotopes in silt. More than 20 elements in suspending and bed silt at different sites were determined. Data analysis and computer-based fitting calculation indicated that all of the suspending silt samples analyzed were of the same origin, i. e. Xinjinxi River outlet and about 37% of the bed silt at the Wailanjiangsha channel is composed of the deposit of suspending silt.

关 键 词：泥沙 运动 活化 示踪法 同位素 

分 类 号：TV142[水利工程—水力学及河流动力学]