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

9904489AbdelsalamDescription：该奖项是对德克萨斯大学达拉斯分校岩石圈研究中心Mohamed Abdelsalam博士和Robert Stern博士与埃及开罗国家遥感和空间科学管理局Abdel-Aziz Hussein博士合作项目的支持。这些研究人员计划研究埃及东南部新元古代阿拉齐缝合带的构造和构造演化，并沿着该缝合带探索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。遥感分析将包括三个覆盖90,000平方公里的陆地卫星专题地图(TM)场景的处理、开发和解译，以及一个覆盖2,000平方公里、以发生热液蚀变区域为中心的高分辨率卫星勘探仪(SPOT)场景的处理、开发和解译。与阿拉齐缝合带有关的主要地质问题是沿缝合带变化的构造性质(走滑与逆冲断裂)、蛇绿岩侵位方向和机制(S)、剪切带内外各种构造成矿与形成的时空关系。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，并可能获得关于新元古代地壳堆积过程中构造、岩浆和热液作用性质的关键信息。范围：私人投资机构在阿拉伯-努比亚盾牌进行跨学科地质研究并及时公布其工作结果方面有着良好的记录。PIS可以使用必要的设施(UTD的遥感实验室)。与埃及同事的合作将非常有帮助，并将加强开发各种遥感技术的国际联系，以便沿着地壳规模的剪切带寻找矿化带，特别是在前寒武纪环境中。一名来自美国的研究生将参加在埃及的实地考察工作，一名埃及初级科学家将参加UTD的研究。这还不包括三位合作的科学家。这一提议符合在互惠领域加强美国与外国合作的国际目标。

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.