南海北部及珠江水体中Be同位素分布  

DISTRIBUTION OF Be ISOTOPES IN THE WATER BODY OF THE PEARL RIVER AND NORTHERN SOUTH CHINA SEA

作　　者：刘韶[1] 张惠玲[1] 吴良基[1] 孙恢礼[1] 顾德隆[2] 张承蕙 

机构地区：[1]中国科学院南海海洋研究所,广州510301 [2]美国南加州大学地质系 [3]中国科学院地质研究所,北京100029

出　　处：《热带海洋》1992年第2期105-109,共5页

摘　　要：在南海北部及珠江口水体中取样进行Be同位素分析,结果表明:从海向珠江水体中^(10)Be和~9Be浓度分别从1250at./g,和40PM增加到22060at./g及1120PM,其悬浮质中^(10)Be从小于0.3×10~7at./g到19.0±0.8×10~7at./g。~9Be在水中的垂直分布从底部向表层逐渐增加,悬浮质中^(10)Be则从底部到表层逐渐减小。本区域悬浮质中的~9Be,^(10)Be和Si不论在水平和垂直分布其特征都类似。Sampling in the north of South China Sea and the Pearl River was carried out .Analytical results show that the 10Be and 9Be concentration increase from 1 250 at/g, 40PM in the South China Sea to 22 060 at/g and 1120 PM in the Pearl River for water. The suspension 10Be concentration at the same locations are from 0.3×l07at/g to 19,0×0.8±l07 at/g. In South China Sea 9Be concentration increases from the bottom layer to the surface layer for water, but 10Be in suspension decreases from the bottom layer to surface layer. The horizontal and vertical distribution of 10Be and 9Be is similar to that of Si in the area.

关 键 词：水体 悬浮质 BE 同位素 浓度 

分 类 号：P734.23[天文地球—海洋化学]