• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Symposium on Advances in Isotope Hydrology and its Role in Sustainable Water Resources Management;IHS-2007 >HYDROCHEMICAL AND ISOTOPIC STUDYOF AL-MOUH SABKHA EVAPORATIC SYSTEM(SYRIA)
【24h】

HYDROCHEMICAL AND ISOTOPIC STUDYOF AL-MOUH SABKHA EVAPORATIC SYSTEM(SYRIA)

机译：Al-MOUH SABKHA蒸发体系（叙利亚）的水化学和同位素研究

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Estimation of evaporation rate through unsaturated zone in Al-Mouh sabkha, wasdone by applying the isotopic model, the mixing ratio between the shallow groundwaterand the deep groundwater of Upper Cretaceous aquifer without and with an extensiveevaporation process accompanied by precipitation of mineral phases in the sabkha. In thisstudy, the isotopic enrichment peak is determined at a depth of 12 cm for δ18O and δ 2 H,that is caused by evaporation through the unsaturated zone. The main evaporation frontis located between the surface and a depth of 45 cm. The lower part of the unsaturatedzone profile is prone to the capillary effect, where an upward vertical groundwatermovement is found. The amount of evaporated water through the unsaturated zonein the sabkha was estimated about 18 Mm 3 /y using the Barnes and Allison model. Themixing ratio in the sabkha was evaluated using Hydrowin and Netpath programs; itwas about 15–20% from surface water and 80–85% from deep groundwater of UpperCretaceous artesian aquifer. The mixing with extensive evaporation process andprecipitation of mineral phases as calcite, dolomite then gypsum and anhydrite, finally,halite, chloride and H2 S gas, that causes a high salinity (100 g/L) of residual water in thesabkha assuming that all the surface water is evaporated completely.
机译：通过同位素模型，上白垩纪含水层浅层地下水与深层地下水之间的混合比（没有和有大量蒸发过程以及伴随着萨布哈卡矿相沉淀）的估算，可以完成Al-Mouh萨布哈卡非饱和带的蒸发速率的估算。在本研究中，δ18 O和δ2 H的同位素富集峰是在12 cm的深度确定的，这是由于通过非饱和区的蒸发引起的。主要的蒸发前沿位于表面和45 cm的深度之间。不饱和区剖面的下部易于出现毛细作用，在该处发现了向上的垂直地下水运动。使用Barnes和Allison模型，通过sabkha中非饱和区的蒸发水量约为18 Mm 3 / y。使用Hydrowin和Netpath程序评估sabkha中的混合比例。它约占白垩纪自流层含水层地表水的15–20％，深层地下水的80–85％。大量蒸发过程的混合以及方解石，白云石然后是石膏和硬石膏，最后是卤石，氯化物和H2 S气体的矿物相的沉淀，假设整个地表都在盐矿中造成高盐度（100 g / L）的萨巴卡残余水水完全蒸发。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号