US-Egypt Cooperative Research: Study of Factors Affecting Chemical Composition of Groundwater in the Nile Delta

描述：该奖项是为了支持德克萨斯州奥斯汀大学地质科学系的John M. Sharp博士和Philip Bennett博士以及埃及坦塔大学地质系的Abdel Hamid Noweir博士和Ahmed El-Shishtawy博士的联合研究项目。这些科学家将进行地质和地球化学研究，以评估浅层沉积物对尼罗河三角洲中部地区地下水质量的影响。他们计划评估地下水中微量元素的含量和分布。将特别注意影响人类饮用水质量的微量元素。研究的元素包括Eh和Fe2+。假设水质特征与特定的矿物、有机物和战略单元或区域的地球化学环境有关，通过井和地球物理对水文战略单元的测绘可以圈定这些区域，并且可以制定一个方案来提供饮用水。在该项目的第一部分，埃及小组将对从特定地质构造地区收集的地下水样本进行取样和分析。在项目的第二部分，对样品的详细分析将描述地表沉积物的水文地质特性。分析将包括粒度分布、渗透率、透过率、细粒岩屑的Attenberg极限、扫描电镜、x射线衍射和其他岩石学分析。范围：该奖项将允许美国科学家与埃及科学家在一个处理重要问题的项目中合作。许多发展中国家和发达国家的用水越来越依赖于可饮用地下水的供应。这反过来又取决于地质条件，即该地区的矿物学以及水的运动。这项研究对生活在尼罗河三角洲地区的人们的重要性是显而易见的。这个主题很重要，因为它涉及到观察岩石和水化学。夏普被认为是著名的水文地质学家，班尼特是著名的地球化学家。所产生的知识基础对埃及人民将是非常重要的，因为不断增长的人口给水供应带来越来越大的压力，海平面上升导致咸水侵入淡水区。预计将出现适合在国际科学期刊上发表的文章。该提案符合INT在互利领域支持美国与外国科学合作的目标。

9904791SharpDescription: This award is for support of a joint research project by Dr. John M. Sharp, and Dr. Philip Bennett, Department of Geological Sciences, the University of Texas, Austin, Texas and Dr. Abdel Hamid Noweir and Dr. Ahmed El-Shishtawy, Geology Department, Tanta University, Tanta, Egypt. These scientists will conduct geological and geochemical studies to assess the influence of superficial deposits on groundwater quality in the central area of the Nile Delta. They plan to evaluate the levels and distribution of trace elements in the groundwater. Specific attention will be paid to trace elements which affect the quality of water for human consumption. Among the elements to be studied are Eh and Fe2+ The hypothesis is that water quality characteristics are related to specific minerals, organic matter, and the geochemical environment in strategraphic units or zones, that mapping of hydrostrategraphic units by wells and geophysics can delineate these zones, and that a program can be developed to provide potable water. In the first part of the project the Egyptian team will conduct sampling and analysis of collected samples of groundwater from areas of specific geological formations. In the second part of the project detailed analysis of the samples will characterize the hydrogeological properties of the surficial deposits. The analysis will include grain size distribution, permeability, transmissivity, Attenberg Limits of fine-grained cuttings, SEM, X-ray diffraction and other petrographic analyses. Scope: This award will allow US scientists to collaborate with Egyptian scientists in a project that deals with an important problem. Water use in many developing, and also in developed, countries is increasingly dependent on the availability of potable groundwater. This in turn is dependent on the geological conditions, namely mineralogy of the region as well as the water movement. The importance of the study to the people living within the Nile Delta is clear. The topic is important as it involves looking at rocks and at water chemistry together. Sharp is considered a leading hydrogeologist, and Bennett is a well-known geochemist. The knowledge-base generated will be very important to the people of Egypt, as growing populations put increasing pressure on water supplies, and rising sea levels cause salt-water intrusion into the freshwater zone. It is expected that articles suitable for publication in international science journals will be forthcoming. This proposal meets the INT objective of supporting US-foreign scientific collaboration in areas of mutual benefit.