International Research Workshop: Deep Intracontinental Subduction in the Pamir

该奖项为一个关于中亚阿莱河谷-帕米尔地区大陆内俯冲动力学的讲习班提供资金。各种不同的工艺在深度上都叫？陆内俯冲吗?在文献中。在最常被讨论的形式中，大陆岩石圈跟随海洋岩石圈进入一个俯冲带，在持续的汇聚过程中，大陆地壳的薄片一个叠在另一个上面，就像阿尔卑斯山或喜马拉雅山脉所发生的那样。pi特别感兴趣的是一种不同的、非常规的可能性，即大陆岩石圈形成了一个贯穿软流圈的俯冲板块的整体，因此挑战了对俯冲开始的传统理解和板块拉力对构造动力学的重要性。他们正在提出一个项目，该项目将测试与最后一个案例有关的假设，重点关注帕米尔高原作为检验这些过程的自然实验室。阿莱山谷-帕米尔系统是地球上研究大陆内俯冲的最佳地点之一。要测试的假设的不同含义需要多学科的努力来测量帕米尔及其周围当前的深层结构和变形的时间演变。这样一个实验的设计需要集中的、多学科的努力，最好是把来自几个国家和几个学科的科学家聚集在一起。举办讲习班是朝着制定一个适当整合和利用其他各方努力的连贯项目迈出的重要一步。研讨会的参加者将包括来自美国及其伙伴国家（塔吉克斯坦、吉尔吉斯斯坦、中国、德国和加拿大）的地质学家和地球物理学家。研讨会的成果将是：1)关于如何协调各种科学努力以及如何最终整合各种初步结果以更好地检验假设的计划；2)一个共享资源的计划，如仪器和人员，以使项目尽可能高效和成功。

This award provides funding for a workshop on the dynamics of intracontinental subduction in the Alai Valley-Pamir region of central Asia. A variey of different processes at depth are all called ?intracontinental subduction? in the literature. In the most commonly discussed form, continental lithosphere follows oceanic lithosphere into a subduction zone, and during continued convergence, slices of the continental crust are stacked one atop the others, as has occurred within the Alps or Himalaya. The PIs are particularly interested in a different and unconventional possibility, where continental lithosphere forms the entirety of a subducting slab that penetrates the asthenosphere, and hence challenges conventional understanding of subduction initiation and the importance of slab pull to tectonic dynamics. They are proposing a project which will test hypotheses related to this last case, focusing on the Pamir as a natural laboratory for examining these processes.The Alai Valley-Pamir system is one of the best locations on Earth to investigate deep intracontinental subduction. The diverse implications of the hypotheses to be tested necessitate a multidisciplinary effort to measure both the current deep structure and time evolution of deformation in and surrounding the Pamir. The design of such an experiment requires a concentrated, multidisciplinary effort, best accomplished by bringing scientists from several countries and several disciplines together. Holding a workshop is an essential step towards developing a coherent project that is properly integrated and leverages the efforts of others. Participants in the workshop will include geologists and geophysicists from the USA and partner countries (Tajikistan, Kyrgyzstan, China, Germany and Canada).The outcomes of the workshop will be: 1) a plan regarding how to coordinate various scientific efforts and how to ultimately integrate the various preliminary results so to better test the hypotheses; and 2) a plan for sharing resources such as instruments and personnel in order to make the project as efficient and as successful as possible.