莺歌海盆地是南海北部边缘以及中国大陆新生代沉积最厚的沉积盆地，沉积充填地层中记录了丰富的区域动力学事件信息。本项目以莺歌海盆地作为研究对象，以"源-汇系统"的研究思路为指导，运用高精度层序地层学建立盆地新生代充填序列和层序地层格架，定量计算盆地中各个时期的沉积物量，并以海南岛和越东物源区已有低温热年代学数据反演获得平面剥蚀速率为约束条件，计算中新世红河物源区向盆地输入沉积物变化的时间、速率和幅度等关键信息，结合盆地中新世砂岩碎屑组分和特殊重矿物成分分析，开展碎屑颗粒低温热年代学和碎屑锆石U-Pb年龄测试，进而在盆地沉积充填中识别出物源区构造转化的沉积响应信息，并探究其中蕴含的物源区动力学事件，为青藏高原东部中新世快速隆升剥露过程的确定提供来自陆缘海盆地的约束。本研究不仅可以深化青藏高原东缘隆升过程的认识，而且对红河演化及东亚气候变化也具有重要的意义。

The Yinggehai Basin encompasses the thickest of all Cenozoic sedimentary basins on the northern continental margin of the South China Sea and mainland China. The sedimentary sequences in the Yinggehai Basin document vast regional tectonics information. This research proposal intends to study the Yinggehai Basin, which has accumulated a great sedimentary thickness. Based on the theory of source-to-sink systems, we will build a basin-wide Cenozoic framework for filling sequences and stratigraphic sequences. We will also quantify its sedimentary fills and the rates of accumulation by dividing the sediment volume by the duration of each depositional episode. Comparing erosional histories of source regions to sediment volumes deposited during each episode, we shall also try to decipher key information about time, rates and amplitudes of sediment delivery from the Red River. Combined with detrital zircon U-Pb dating and low-temperature thermochronology, Miocene sediment composition will be studied by evaluating composition of siliciclastic sediments and special heavy mineral analyses. We will explore in detail the relationship between changes in provenance of sediments and rates of sediment accumulation, which are linked to uplift events in eastern Tibet as triggered by plateau growth. Our research proposal will not only improve our understanding of the history of plateau uplift, but also provide a clue to constrain the Miocene continental climate and river reorganization in southeastern Asia.