摘要
根据地下水运动的一般规律 ,阐述了罗布泊盐湖钙芒硝储卤层及富钾卤水的特性 ,并讨论了该卤水层的变化特性。在罗布泊干盐湖区采用14 C测年技术、人工放射性同位素技术和化学示踪技术 ,研究晶间卤水循环速率、卤水渗流方向及渗透流速与实际流速 ,揭示罗布泊盐湖晶间卤水处于缓慢的流动及交替状态。探讨了新构造活动、古气候变化、地层静压力作用、深部地层水及大气降水补给作用等因素对罗布泊盐湖晶间卤水运动的控制和影响 ,提出了晶间卤水的运动模式。
Based on general movement regularity of underground water, this paper describes in detail physical characteristics of brine aquifers and dynamic properties of brine movement as well as their variation in Luobei depression lying in the northeast of Lop Nur, Xinjiang. With such means as 14C-dating, I 131 technique and chemical tracing technique, the authors studied the rate of circulation, the flowing direction, the vadose velocity and the actual flowing velocity of inter-crystal brine in Luobei playa, thus revealing the chronic flowing and exchange state of the inter-crystal brine. In addition, it is shown that various factors such as neotectonic activity, paleoclimate change, hydrostatic pressure of strata, oilfield water and precipitated water have exerted controlling influence on the movement of inter-crystal brine. Finally, a model of inter-crystal brine is suggested.
出处
《地球学报》
EI
CAS
CSCD
北大核心
2003年第3期255-260,共6页
Acta Geoscientica Sinica
基金
国土资源部科技项目 (编号 :992 0 2 5 )
国家科技攻关 3 0 5项目 (编号 :96- 915- 0 8- 0 5 )
地质调查项目 (编号 :DKD2 0 0 2 0 0 2 )资助。
