乌江干支流河水中U元素的地球化学特征
Geochemical Characteristics of Dissolved U in the Wujiang River
查看参考文献20篇
|
文摘
|
本研究对乌江流域河水U浓度进行了测定,系统讨论了乌江流域干支流河水中U的元素地球化学特征,并对其主要来源进行了辨析.研究结果显示,乌江河水中溶解态U的平均浓度约为0.504_(μg)/L,比世界河流平均水平0.186_(μg)/L及长江平均含量0.45_(μg)/L高,但是低于黄河U含量4.86_(μg)/L,同时也低于世界平均海水U浓度3.3_(μg)/L.来源分析显示,乌江河水中的U主要来源于碳酸盐岩风化,尤其是白云岩的风化,对U行为有决定性的控制作用,说明了在海洋沉积成岩过程中生物作用过程对U行为的重要性.蒸发岩和硅酸盐等的风化过程对乌江河水U的贡献不大.和十年前相比,人类活动对流域河水U的影响明显增加 |
|
其他语种文摘
|
The concentrations of dissolved U were measured in the Wujiang River and its major tributaries. Meanwhile, the geochemical characteristics of dissolved U have been discussed, including the relations between the water chemical characteristics, lithological characters and human activities. The results showed that the average concentration of dissolved U in the Wujiang River is 0.504_(μg)/L, higher than the global average(0.186_(μg)/L)and Yangtze average(0.45_(μg)/L), but lower than that of the Yellow River(4.86_(μg)/L).The concentrations of dissolved U in the Wujiang River Basin are mainly controlled by dissolution of carbonate rocks, especially by dolostones, indicating that the geochemical characteristics of U are effected significantly by biological activities during diagenesis of marine carbonates. Compared with the situation ten years ago, the impact of human activities on U concentrations in the Wujiang River Basin has been obviously enhanced |
|
来源
|
地球与环境
,2010,38(4):402-408 【核心库】
|
|
关键词
|
乌江流域
;
铀
;
风化
;
碳酸盐岩
|
|
地址
|
中国科学院地球化学研究所, 环境地球化学国家重点实验室;;天津市水环境与水资源重点实验室, 贵州, 贵阳, 550002
|
|
语种
|
中文 |
|
ISSN
|
1672-9250 |
|
学科
|
地质学;环境科学基础理论 |
|
基金
|
国家973计划
;
国家自然科学基金
;
中国科学院知识创新工程重要方向项目
|
|
文献收藏号
|
CSCD:4108308
|
参考文献 共
20
共1页
|
|
1.
Church T M. U-and Th-Series nuclides in the atmosphere:Supply, Exchange, Scavenging, and Applications to Aquatic Processes.
Elsevier Science,2008,13:11-47
|
被引
1
次
|
|
|
|
|
2.
Palmer M R. Uranium in river water.
Geochimica et Cosmochimica Acta,1993,576:4947-4955
|
被引
16
次
|
|
|
|
|
3.
周仲怀. 黄河口铀的化学行为.
海洋科学,1989,2:38-42
|
被引
2
次
|
|
|
|
|
4.
吴锦海. 上海天然水源中铀含量14年连续测定评价.
中国辐射卫生,2001,10(2):99-100
|
被引
1
次
|
|
|
|
|
5.
Jiang X Y. Behavior of uranium in the Yellow River Plume.
Estuaties and Coasts,2007,30(6):919-926
|
被引
5
次
|
|
|
|
|
6.
李月芳. 青藏高原天然水体中铀含量的区域分布特征.
地球化学,2003,32(5):445-452
|
被引
8
次
|
|
|
|
|
7.
宋照亮. 乌江流域沉积岩风化过程中铀的富集与释放.
环境科学,2006,27(11):2273-2278
|
被引
6
次
|
|
|
|
|
8.
韩贵琳. 贵州喀斯特地区乌江河水中铀的地球化学研究.
地质地球化学,1999,27(4):66-71
|
被引
4
次
|
|
|
|
|
9.
张立城.
水环境化学元素研究,1996:119
|
被引
4
次
|
|
|
|
|
10.
韩至钧.
贵州省水文地质志,1996
|
被引
13
次
|
|
|
|
|
11.
Dominik J. High natural content of uranium in the Upper Rhone and Lake Geneva(Switzerland).
Sediments and Water interactions,1987:27-34
|
被引
1
次
|
|
|
|
|
12.
Sarin M. Chemistry of uranium, thorium, and radium isotopes in Ganga -Brahmaputra rivers system:weathering processes and fluxes to the Bay of Bengal.
Geochimica et Cosmochimica Acta,1990,54:1387-1396
|
被引
1
次
|
|
|
|
|
13.
Langmuir D. Uranium solution-mineral equilibria at low temperatures with applications to sedimentary ore deposits.
Geochim Cosmochim Acta,1978,42:547-569
|
被引
66
次
|
|
|
|
|
14.
Fredrikson J K. Reduction of U(VI)in goethite(alpha-FeOOH)suspensions by a dissimilatory metal-reducing bacterium.
Geochim Cosmochim Acta,2000,64:3085-3098
|
被引
1
次
|
|
|
|
|
15.
Han G L. Water geochemistry controlled by carbonate dissolution:a study of the river waters draining karstdominated terrain, Guizhou Province, China.
Chemical Geology,2004,204:1-21
|
被引
96
次
|
|
|
|
|
16.
刘丛强. 西南喀斯特流域碳酸盐岩的硫酸侵蚀与碳循环.
地球化学,2008,37(4):404-414
|
被引
115
次
|
|
|
|
|
17.
Chen J S. Major element chemistry of the Changjiang(Yangtze River).
Chemical geology,2002,187:3-4
|
被引
1
次
|
|
|
|
|
18.
Chabaux F. Isotopic tracing of the dissolved U fluxes of Himalayan rivers:implications for present and past U budgets of Ganges-Brahmaputra system.
Geochim Cosmochim Acta,2001,65:3201-3217
|
被引
5
次
|
|
|
|
|
19.
Garzione C N. Prediction paleoelevation of Tibet and the Himalaya fromδ18Ovs.altitude gradients in meteoric water across the Nepal Himalaya.
Earth and Planctary Science Letters,2000,183:215-229
|
被引
49
次
|
|
|
|
|
20.
Berner E K.
The Global Water Cycle,1986
|
被引
3
次
|
|
|
|
|
了解气象卫星更多信息，请访问