Processes Controlling Depositional Signals of Environmental Change in the Fly River Sediment Dispersal System: Mechanisms and Rates of Shelf Clinoform Development

该项目将调查导致飞河附近巴布亚湾陆架斜形发育的沉积物运输和积累过程。该研究将包括从河口附近到斜山形底部的各种采样和监测站，这些监测站将提供关于当今沉积物运输和积聚的时空变化的时序观测。该研究将专门研究流体泥浆作为导致斜形形态的沉积物跨大陆架运输的主要机制的作用。包括放射性同位素测量在内的岩心研究将在季节到千年的时间尺度上提供沉积物运输和积累的信息。

This project will investigate the processes of sediment transport and accumulation that lead to development of the shelf clinoform in the Gulf of Papua off the Fly River. The study will include a variety of sampling and monitoring stations from near the river mouth to the base of the clinoform that will provide time-series observations on the spatial and temporal variation in present day sediment transport and accumulation. The study will specifically investigate the role of fluid muds as primary mechanism for across-shelf transport of sediment that leads to clinoform morphology. Core studies including radioisotope measurements will provide information of sediment transport and accumulation on seasonal to millennial time scales.