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

9904489 abdelsalam描述：该奖项是为了支持博士的合作项目。德克萨斯州达拉斯市德克萨斯大学岩石圈研究中心的Mohamed Abdelsalam和Robert Stern以及埃及开罗国家遥感和空间科学管理局的Abdel-Aziz Hussein博士。研究埃及东南部新元古代阿拉齐缝合带的构造与构造演化，探索该缝合带金矿化的性质和模式。将使用详细的实地研究和遥感技术相结合的方法。遥感分析将包括处理、开发和解释三个覆盖面积为9万平方公里的Landsat专题地图（TM）场景和一个覆盖面积为2000平方公里的高分辨率卫星Probatoire pour l'Observation de la Terre （SPOT）场景，并以热液蚀变发生的区域为中心。与阿拉齐缝合带有关的主要地质问题是沿缝合带的构造特征（走滑与逆冲断层）的变化、蛇绿岩的侵位方向和侵位机制，以及剪切带内外各种构造的成矿与形成的时空关系。这些都是重要的问题，可以更好地约束阿拉伯-努比亚地盾的构造演化，并有可能获得新元古代地壳形成过程中构造、岩浆和热液过程性质的关键信息。范围：pi在阿拉伯-努比亚地盾进行跨学科地质研究并及时发布其工作结果方面有着良好的记录。pi可以使用必要的设施（UTD遥感实验室）。同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，沿地壳规模剪切带寻找矿化带，特别是在前寒武纪环境中。来自美国的一名研究生将参加在埃及的实地考察，一名年轻的埃及科学家将参加在UTD的研究。除此之外，还有三位合作科学家。该提案符合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.