US-Egypt Cooperative Research: Structural Evolution and Gold Mineralization of the Allaqi Suture, Southern Egypt

9904489 Abdelsalam描述：该奖项是为了支持德克萨斯州达拉斯市德克萨斯大学岩石圈研究中心的Mohamed Abdelsalm博士和Robert Stern博士以及埃及开罗国家遥感和空间科学局的Abdel-Aziz Hussein博士的合作项目。 这些研究人员计划研究埃及东南部新元古代阿拉奇缝合带的构造和构造演化，并探索沿着该缝合带金矿化的性质和模式。 将结合使用详细的实地研究和遥感技术。 遥感分析将包括处理、制作和判读三幅覆盖90，000平方公里的大地卫星专题制图仪图像和一幅覆盖2，000平方公里并以热液蚀变发生地区为中心的高分辨率地球观测试验卫星图像。 与阿拉齐缝合带有关的主要地质问题是：沿缝合带沿着不断变化的构造特征（走滑-逆冲断层）、蛇绿岩的侵位方向和机制、剪切带内和剪切带两侧各种构造的形成与矿化的时空关系。 这些都是重要的问题，以更好地约束阿拉伯-努比亚地盾的构造演化，并有可能获得关键信息的性质，结构，岩浆和热液过程在新元古代地壳建设。 适用范围：在阿拉伯-努比亚地盾进行跨学科地质研究并及时公布其工作结果方面，项目研究员有着良好的记录。专业人员可以使用必要的设施（技术发展大学的遥感实验室）。 与埃及同事的合作将十分有益，并将加强国际联系，以发展各种遥感技术，沿沿着地壳规模的剪切带，特别是在前寒武纪环境中寻找矿化带。 一名来自美国的研究生将参加埃及的实地考察，一名年轻的埃及科学家将参加UTD的研究。 这是除了三位合作科学家之外。 这一提议符合INT在互利领域增加美国与外国合作的目标。

9904489AbdelsalamDescription: This award is for support of a cooperative project by Drs. Mohamed Abdelsalam and Robert Stern, Center for Lithospheric Studies, University of Texas, Dallas, Texas and Dr. Abdel-Aziz Hussein, National Authority for Remote Sensing and Space Sciences in Cairo, Egypt. These investigators plan to study the structural and tectonic evolution of the Neoproterozic Allaqi suture in SE Egypt and to explore the nature and mode of gold mineralization along this suture zone. A combination of detailed field studies and remote-sensing techniques will be used. Remote sensing analysis will include processing, development and interpretation of three Landsat Thematic Mappers (TM) scenes covering an area of 90,000 km2 and one high-resolution Satellite Probatoire pour l'Observation de la Terre (SPOT) scene covering an area of 2,000 km2 and centered around areas hydrothermal alteration occurs. The main geological problems associated with the Allaqi suture are the changing structural character (strike-slip vs. thrust fault) along the suture zone, emplacement direction and mechanism(s) of ophiolites, and the spatial and temporal relations between mineralization and formation of various structures within and across the shear zone. These are significant questions to better constrain the tectonic evolution of the Arabian-Nubian Shield and potentially to obtain critical information on the nature of structural, magmatic, and hydrothermal processes during crustal build-up in the Neoproterozoic. Scope: The PIs have a good track record of conducting interdisciplinary geological studies in the Arabian-Nubian Shield and publishing the results of their work in a timely fashion. The PIs have access to the necessary facilities (Remote Sensing Lab at UTD). The collaboration with the Egyptian colleagues would be quite helpful and would strengthen the international link to develop various remote-sensing techniques in search of mineralized zones along crustal-scale shear zones, particularly in Precambrian environments. One graduate student from the United States will participate in the fieldwork in Egypt, and one junior Egyptian scientist will participate in the research at UTD. This is in addition to the three cooperating scientists. This proposal meets the INT objective of increasing US-foreign collaboration in areas of mutual benefit.