IRES: U.S.-Egypt Collaborative Research Desert Eyes- Origin and Evolution of Enigmatic Domes and Basins in the Stable Platform of Egypt

1030224/1030230图克斯伯里/霍根汉密尔顿学院/密苏里州科技大学IRES：美国-埃及合作研究沙漠之眼-埃及稳定平台上神秘的穹顶和盆地的起源和演化这是由美国PI芭芭拉·图克斯伯里、汉密尔顿学院和密苏里州科技大学约翰·霍根领导的学生研究合作活动。他们将与埃及教职员工和学生合作，为22名在埃及西部沙漠进行地质和地球物理野外研究的美国研究生和本科生提供为期3年的国际研究体验。目标是1)让学生参与到埃及稳定平台中关于褶皱和断层构造的假说驱动的原创性研究中，2)提供多方面的经验和培训，以增加学生？未来开展国际合作研究的能力。Knowledge Merit高分辨率卫星图像显示，埃及西部沙漠在北纬23.0°至27.7°之间近600公里处存在非同寻常的、基本上未被研究过的褶皱和断层构造。侦察工作表明，这些构造界定了北部由狭窄向斜分隔的小穹顶区域，并拉长了穹顶和盆地，这些穹顶和盆地通常但并非总是沿南部离散的断裂带排列。在这两个区域之间会出现两种端部杆件类型的混合结构。研究假设是：1)北部的穹顶场是由于多角断层网络上方石灰岩中二氧化硅的选择性成岩作用(如以前仅在北海研究的构造所建议的)，以及2)南部沿断层拉长的穹顶和盆地是沿重新激活的基底断层滑动、与断层相关的褶皱和产生北部穹顶场的过程引发的现有褶皱之间的复杂相互作用造成的。美国和埃及的学生和教职员工将从事多学科研究，以检验这些假说，并约束这些结构起源和演化的可能模型。在实地工作之前，美国和埃及的学生和教职员工将合作，使用可见光和红外波长的高分辨率卫星图像进行详细的结构制图。在埃及的实地，该项目将包括有针对性的详细地质现场测绘和样品采集，用于组构和化学分析，以及获取地震反射和折射数据，以限制褶皱和断层的三维几何图形。该项目将使用Wiki和网络视频会议，使美国和埃及的参与者能够在进入实地之前有效地协作进行卫星图像分析，并保持对数据的讨论和分析，远远超出现场经验。布罗德影响北部穹顶地区是北海风格的穹顶地区唯一的陆地例子，而非凡的，在数千平方公里的西部沙漠中，裸露的基岩提供了一个独特的机会，可以增加与断层相关的褶皱的几何学和运动学的文献。该项目将通过将通过维基和网络视频会议进行的协作调查活动整合到合作机构教授的课程中，促进美国和埃及教职员工和学生之间的永久合作。随着项目研究进展而出现的利用遥感进行结构解释的突出例子将被用来开展这些活动，来自其他机构的学生也将受益，因为开展的所有活动都将提交给国家科学基金会资助的用于教授本科生地球科学的前沿项目的在线收藏。该项目还将在项目第三年举行的美国地质学会年度全国会议上举办讲习班，重点讨论国际合作的最佳做法和培养学生从事国际工作的能力。本次研讨会的成果将提交给尖端收藏。

1030224/1030230Tewksbury/ Hogan Hamilton College/ Missouri University of Science and Technology IRES: U.S.-Egypt Collaborative Research Desert Eyes- Origin and Evolution of Enigmatic Domes and Basins in the Stable Platform of Egypt This is a collaborative activity for student research lead by US PIs Barbara Tewksbury, Hamilton College and John Hogan, Missouri University of Science and Technology. They will launch a 3-year international research experience for 22 US graduate and undergraduate students in geological and geophysical field research in the Western Desert of Egypt in partnership with Egyptian faculty and students. The objectives are 1) to involve students in hypothesis-driven, original research on fold and fault structures in the Stable Platform of Egypt, and 2) to provide multi-faceted experiences and training that increase students? capacities to undertake collaborative international research in the future. Intellectual Merit High resolution satellite imagery reveals extraordinary and largely unstudied fold and fault structures in the Western Desert of Egypt over a distance of nearly 600 km between 23.0° and 27.7° N. The reconnaissance work shows that these structures define fields of small domes separated by narrow synclines in the north and elongate domes and basins that are commonly, but not always, aligned along discreet fault zones in the south. Structures that are a hybrid of both end member types occur between the two regions. The research hypotheses are: 1) dome fields in the north resulted from selective diagenesis of silica in limestone above a polygonal fault network, as suggested for structures previously studied only in the North Sea, and 2) elongate domes and basins along faults in the south resulted from a complex interplay among slip along reactivated basement faults, fault-related folding, and existing folds initiated by processes that produced the dome fields in the north. US and Egyptian students and faculty will engage in multidisciplinary research to test these hypotheses and to constrain possible models for origin and evolution of these structures. Prior to working in the field, US and Egyptian students and faculty will collaborate to conduct detailed structural mapping using high resolution satellite imagery at visible and infrared wavelengths. In the field in Egypt, the project will consist of targeted detailed geologic field mapping and sample collection for fabric and chemical analysis, and acquisition of both seismic reflection and refraction data to constrain the 3D geometry of the folds and faults. The project will use wikis and web video conferencing to enable participants in the U.S. and Egypt to collaborate effectively on satellite image analysis before going into the field and to sustain discussion and analysis of the data well beyond the field experience.Broader Impacts The northern dome fields are a good candidate for the only on-land example of North Sea-style dome fields, and the extraordinary, unvegetated bedrock exposures in the Western Desert over thousands of square kilometers offer a unique opportunity to add to the literature on the geometry and kinematics of fault-related folds.The project will develop permanent collaborations between US and Egyptian faculty and students by integrating collaborative investigative activities via wikis and web video conferencing into courses taught at the collaborating institutions. Outstanding examples of structural interpretation using remote sensing that emerge as research on the project progresses will be used to develop these activities, and students from other institutions will benefit as well, because all activities developed will be submitted to the online collections of the NSF-funded project On the Cutting Edge for teaching undergraduate geoscience. The project will also hold a workshop at the annual national meeting of the Geological Society of America in Year 3 of the project focused on best practice in international collaboration and preparing students for international work. The outcomes of this workshop will be submitted to the Cutting Edge collections.