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

图克斯伯里/霍根汉密尔顿学院/密苏里科技大学IRES：美国-埃及合作研究沙漠之眼-埃及稳定平台中神秘圆顶和盆地的起源和演变这是一项由美国律师芭芭拉·图克斯伯里，汉密尔顿学院和约翰·霍根，密苏里科技大学领导的学生研究合作活动。他们将与埃及教师和学生合作，为22名美国研究生和本科生在埃及西部沙漠开展为期3年的地质和地球物理实地研究。其目标是：1)让学生参与到埃及稳定地台褶皱和断层结构的假设驱动的原创性研究中；2)提供多方面的经验和培训，以提高学生的能力。未来进行国际合作研究的能力。高分辨率卫星图像揭示了埃及西部沙漠在23.0°和27.7°之间近600公里范围内的非凡的、基本上未被研究过的褶皱和断层结构。侦察工作表明，这些结构定义了北部由狭窄的向斜分隔的小圆顶区，以及南部通常（但并非总是）沿着谨慎的断裂带排列的细长圆顶和盆地。两种端元类型的混合结构发生在两个区域之间。研究假设如下：1)北部的圆顶田是由于多角形断层网络上方的石灰岩中二氧化硅的选择性成岩作用造成的，这是以前只在北海研究过的构造；2)南部的圆顶田和盆地是由于沿重新激活的基底断层滑动、断层相关褶皱和由产生北部圆顶田的过程所引发的现有褶皱之间的复杂相互作用而形成的。美国和埃及的学生和教师将参与多学科研究，以检验这些假设，并限制这些结构的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师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测绘。在埃及的油田，该项目将包括有针对性的详细地质场测绘和样品收集，用于结构和化学分析，以及采集地震反射和折射数据，以约束褶皱和断层的三维几何形状。该项目将使用维基和网络视频会议，使美国和埃及的参与者能够在进入实地之前就卫星图像分析进行有效合作，并在实地经验之外对数据进行讨论和分析。北部的圆顶油田是北海式圆顶油田唯一的陆地范例，而西部沙漠中数千平方公里的非凡的、没有植被的基岩暴露为断层相关褶皱的几何和运动学提供了独特的机会。该项目将通过维基和网络视频会议将合作调查活动整合到合作机构的课程中，从而在美国和埃及的教师和学生之间建立永久合作关系。随着项目研究的进展，利用遥感技术进行结构解释的杰出例子将被用于开展这些活动，其他机构的学生也将受益，因为所有开展的活动都将提交给nsf资助的项目on the Cutting Edge的在线收藏，用于教授本科生地球科学。该项目还将在项目第三年的美国地质学会年度全国会议上举办一次研讨会，重点讨论国际合作的最佳实践，并为学生从事国际工作做好准备。本次研讨会的成果将提交给《前沿》杂志。

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.