莱州湾沿岸地下浓缩海水中高浓度铀的发现及其地球化学异常

THE DISCOVERY OF HIGH CONCENTRATION URANIUM IN THE CONCENTRATED UNDERGROUND SEAWATER AND THE GEOCHEMICAL ANOMLY OF THE LAIZHOU BAY

1986年1月至1987年9月,利用激光铀分析法对莱州湾沿岸地下浓缩海水中的铀浓度进行了调查,在我国首次发现莱州湾沿岸广大地区地下浓缩海水中溶存高浓度铀。本文讨论了铀的分布规律及影响地下浓缩海水中铀浓度的因素,探讨了高浓度铀的来源,并推测莱州湾沿岸沉积物中可能存在铀源。

The article reports the exploration of the distribution regularity of Uranium in the underground seawater in the Laizhou Bay. Concentration of Uranium in the Laizhou Bay averaged about 50 μgU/L. Its highest concentration is more than 100 μgU/L, rare in China.The high concentration Uranium distributed irregularly, the linear relationship between the salinity of seawater and the Uranium concentration is not applicable to the concentrated underground seawater. The high or low Uranium concentration in the concentrated underground seawater is related to the somechemical composition (for example: M2+3 and SO2-4ions).The exist of high concentration Uranium in the concentrated underground seawater inthe Laizhou Bay is probably due to the existence of Uranium in the sediment.