Evolution of Modern Intra-Arc Sedimentary Basins in the Central Philippine Archipelago

弧内盆地很重要，但在消耗板块边缘的复杂岛弧系统中却鲜有人研究。这些盆地通常标志着具有重要构造特征的地点，如主要的走滑断层、早期裂谷或海洋地壳的圈闭碎片。由于缺乏对这些盆地的调查，导致人们对它们在现代和古代弧形地形中的意义认识不足。在这个奖项中，研究人员将研究菲律宾中部群岛的几个海洋和非海洋弧内盆地。他们将使用海洋地球物理和地质工具的组合，如SeaMarc II Sonar、单通道地震剖面仪、活塞取样器等，以及陆地地质调查技术。这项调查将侧重于盆地的现代构造背景和详细的构造演化，以及它们的地层和沉积学历史，以及沉积、火山作用和构造作用之间的时空关系。这项研究的目的是解决区域问题，促进对岛弧内部分裂和沉积过程的总体理解，并为识别古老的吸积弧地体中的弧内盆地制定可行的标准。调查人员在菲律宾水域工作的记录非常好，该项目成功的机会非常高。

Intra-arc basins are important but are little-studied component of complex island arc systems at consuming plate margins. These basins commonly mark the sites of important tectonic features such as major strike-slip faults, incipient rifts, or trapped fragments of ocean crust. The lack of investigation of these basins has resulted in an inadequate appreciation of their significance, in both modern and ancient arc terrances. In this award the investigators would study several marine and non-marine intra-arc basins in the Central Philippine archipelago. They will use a combination of marine geophysical and geological tools such as SeaMarc II Sonar, Single Channel Seismic profiler, Piston corer, etc., along with land geological survey techniques. This investigation will focus on the present-day tectonic setting and detailed structural evolution of basins, as well as on their stratigraphic and sedimentologic histories, and the spatial and temporal relations between sedimentation, volcanism and tectonism. The study is intended to solve regional problems, and to contribute to the general understanding of processes of internal disruption and sedimentation in island arcs, and to develop practicable criteria for identifying intra-arc basins in ancient, accreted arc terranes. The investigators have an excellent record of working in the Philippines water and the project has very high chances of being successful.