Pearl River Mouth Basin (PRMB) is a typical episodically rifting basin, and its sediment records exhibit a multistage infilling process. To build the coupling relationship between the spatial variability of tectonic movement and sediment dispersal pattern, we character the source-to-sink system distribution within continental margin and analysis their dominated factors with quantitative statistical methods. First, we identify the faults and calculate the rifting rate by interpreting the two-dimensional (2D) seismic data and zircon or apatite fission-track data (ZFT/AFT). Accordingly, based on the various trending of the rifting rate evolution, we classified rifting process episodically into three patterns: accelerated rifting decelerated rifting, and uniform rifting. Then, we integrated the data available on detrital zircon U–Pb, rare earth element, and heavy mineral assemblage to identify the responding S2S components associated with the above various rifting processes. Results show that in the first tectonic stage during the early Eocene, the sediments were mainly sourced from an intrabasin provenance area, whereas in the late Eocene to the Oligocene, the paleo-Pearl River provided the sediments to the sink area. We restore the facies association of the sink area by studying the core samples, electric well logs, and three-dimensional (3D) seismic data. During the accelerated and uniform rifting processes, coarse-grained deposited along the boundary faults, which includes the fan delta and subaqueous fans. During decelerated rifting, the depositional environment was dominated by braided channels, meandering channels, and tide-influenced channel accretion. Based on the quantitative analysis the relationship between the grain size of the sediment in each S2S segment and the rifting rate, more fine-grained components were preserved in the decelerated rifting system, while coarse-grained sediments fill the accelerated rifting depression and uniform rifting components. Furthermore, the sediment supply and relative height can influence the volume of the S2S system in the uniform rifting system. In the decelerated rifting basin, the sediment supply is the major factor associated with the development of S2S, whereas the relative height is the major factor associated with the accelerated rifting basin.

珠江口盆地（PRMB）是典型的偶发裂陷盆地，其沉积物记录显示出多阶段的充填过程。为了建立构造运动的空间变化与沉积物扩散模式之间的耦合关系，我们描述了大陆边缘内源-汇系统的分布特征，并采用定量统计方法分析了其主导因素。首先，我们通过解释二维（2D）地震数据和锆石或磷灰石裂变径迹数据（ZFT / AFT）来识别断层并计算裂谷率。因此，根据裂谷速率演变的各种趋势，我们将裂谷过程大致分为三种模式：加速裂谷，减速裂谷和均匀裂谷。然后，我们整合了碎屑锆石U-Pb上的可用数据，稀土元素和重矿物组合，以识别与上述各种裂谷过程相关的响应性S2S组件。结果表明，在始新世早期的第一构造阶段，沉积物主要来自盆地内物源区，而在始新世晚期至渐新世，古珠江向沉积区提供了沉积物。通过研究岩心样本，电测井和三维（3D）地震数据，我们恢复了汇区的相联系。在加速均匀裂谷过程中，沿边界断层沉积的粗粒颗粒包括扇三角洲和水下扇。在减速裂谷期间，沉积环境主要由辫状河道，蜿蜒河道和受潮汐影响的河道积聚所主导。根据定量分析，每个S2S段沉积物的粒径与裂谷速率之间的关系，在减速裂谷系统中保留了更多的细粒成分，而粗粒沉积物则填充了加速裂谷和均匀的裂谷成分。此外，沉积物的供应和相对高度会影响均匀裂谷系统中S2S系统的体积。在减速裂谷盆地中，泥沙供应是与S2S发育有关的主要因素，而相对高度是加速裂谷盆地的主要因素。而粗粒沉积物填充了加速裂谷和均匀的裂谷成分。此外，沉积物的供应和相对高度会影响均匀裂谷系统中S2S系统的体积。在减速裂谷盆地中，泥沙供应是与S2S发育有关的主要因素，而相对高度是加速裂谷盆地的主要因素。而粗粒沉积物填充了加速裂谷和均匀的裂谷成分。此外，沉积物的供应和相对高度会影响均匀裂谷系统中S2S系统的体积。在减速裂谷盆地中，泥沙供应是与S2S发育有关的主要因素，而相对高度是加速裂谷盆地的主要因素。