The North West Shelf, Australia: The Next Step in a Global Approach to Understanding the Role of Eustasy in the Generation and Preservation of Stratigraphy

利用工业井数据和在澳大利亚西北部近海新近系碳酸盐和碳酸盐/硅质碎屑混合层序中获得的现有高质量工业MCS数据集，研究人员将进行全面的层序地层分析，约束沉积过程，弯曲后条带以确定古深度和沉积几何，推断古水流，并更新IODP提案667。这项研究是满足沿着巴哈马海平面样带进行南半球类似LEG 166钻探的科学需求的一步，应该可以与新泽西边缘已经获得和预期(通过未来可能进行的钻探)的结果进行直接比较。为这项工作捐赠了一套最先进的行业数据集，这不仅将提供对该边缘海平面变化和侵蚀/沉积过程的前所未有的了解，而且还将提供对三维河道形态、珊瑚礁、岩溶和峡谷的了解。该计划为研究生和本科生提供培训，服务于IODP的高优先级目标，并补充ONR STRATAFORM和NSF边际计划下正在进行的研究。

Using industry well data and an existing, high-quality industry MCS data set acquired in the Neogene carbonate and mixed carbonate/siliciclastic sequences off northwest Australia, the researchers will undertake a comprehensive sequence stratigraphic analysis, constrain sedimentary processes, flexurally backstrip to determine paleodepths and depositional geometries, infer paleocurrents, and update IODP proposal 667. This research is one step in fulfilling the scientific need for a Southern Hemisphere analog to Leg 166 drilling along the Bahamas sea-level transect and should provide a direct comparison with results already obtained and anticipated (through possible future drilling) on the New Jersey margin. A state-of-the-art industry data set has been donated for this effort, which will provide an unprecedented understanding not only of eustatic sea level changes and erosional/depositional processes on this margin, but also of channel morphology, reefs, karst, and canyons in three dimensions. The program provides for training of graduate and undergraduate students, serves high-priority IODP goals, and complements research being conducted under the ONR STRATAFORM and NSF MARGINS programs.