摘要
通过对阿尔金断裂导水性研究发现,阿尔金断裂在宽滩山一带分裂成多组断裂,断裂宽度达到100km。北山核废物库位于宽滩山以北80km,通过碳、氦、氖、锶等同位素分析,否定了北山深层地下水为全新世时期当地降雨补给的观点。指出由于通过深大断裂的地下水中存在大量的来自深部碳酸盐岩变质产生的CO2,通过混合水模型分析进一步指出,北山地下水循环周期大于10000a的观点是错误的。进一步的同位素分析得出深层的地下水是来自于祁连山降水的补给,深层地下水经过了深大断裂,通过3H得到的地下水补给到北山的时间仅为20a左右。笔者认为选择北山作为核废物库址是非常危险的,一旦发生放射性物质泄漏,将在百年以内的时间尺度污染额济纳盆地的地下水资源,并将危及当地的生态环境和人类生存,进而给我国经济和发展带来沉重负担。
In this paper, studies show that the Altun Fault is splitted into many parts with the width of 100?km on scope of the Kuantan Mount. Nuclear disposal field of Beishan Mount is located 80?km north of the Kuantan Mount. Analysis by use of isotope such as C, He, Ne and Sr indicates that the deep groundwater in the Beishan Mount is not supplied by Holocene local rainfall but by the precipitation of the Qilian Mount, where the groundwater passes the strong deep fault on base of large amount of CO 2 produced by carbonate rock; results of MWM denies the viewpoint that cycle period of groundwater is larger than 10?000?a in the Beishan Mount; then by use of( ~3H )the supply time, only about 20?a, is given. Therefore, it is very dangerous to choose the Beishan Mount as the site of nuclear disposal field because it will pollute groundwater resource of the Ejina Basin and endanger local ecological environment and people in a century once leakiness of radioactivity substances occurs.
出处
《水利经济》
2005年第1期9-13,19,共6页
Journal of Economics of Water Resources
基金
国际原子能机构TC项目(CPR/08/015)
河海大学院士基金资助项目
