Collaborative Research: Formation, Reworking and Accumulation of Sedimentary Deposits, Waipaoa River Shelf, New Zealand

合作研究：新西兰怀帕阿河陆架沉积物的形成、改造和堆积

• 批准号: 0841049
• 负责人: Courtney Harris
• 金额: $ 16.4万
• 依托单位: College of William & Mary Virginia Institute of Marine Science
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-08-15 至 2014-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0841049&HistoricalAwards=false
• 关键词: Collaborative; Research; Formation; Reworking; Accumulation

Walsh/Harris/Ogston Funds are provided to the PIs to collect data on the Waipaoa continental shelf to build on results of prior work in the area. The objective of the study is to use bottom tripods to record data relevant to sediment processes along an apparent transport route, and to collect cores and, at some sites, measure critical shear-stress. The study will consider locations where cores were collected during a prior study, and one major focus of the study is the comparison of cores collected in different years to determine if additional layers have been deposited. Radiochemical studies will also be undertaken at these sites to help quantify the deposition of sediments. The bottom tripods will be placed along a line on the shelf, near the shelf break and on the upper rise in areas that appear to be transport pathways or sites of deposition. The tripods would be deployed for a year. The third component of the study is the creation and use of a model with the objective hindcast sedimentation events in the area. The study includes student involvement and training and will lead to an understanding of the relationship of shelfal processes to resultant stratigraphic architecture which is an important challenge in stratigraphy and has the potential to aid exploration for resources in the future.

沃尔什/哈里斯/奥格斯顿基金提供给PI，以收集关于Waipaoa大陆架的数据，以建立在该地区以前工作的结果。这项研究的目的是利用海底三脚架记录与沉积过程有关的数据，沿着表观输运路线，收集岩心，并在某些地点测量临界剪切应力。这项研究将考虑在以前的研究中收集岩心的地点，研究的一个主要重点是比较不同年份收集的岩心，以确定是否有额外的沉积层。此外，亦会在这些地点进行放射化学研究，以量化沉积物的数量。底部三脚架将沿着一条线放置在大陆架上，靠近大陆架断裂处，并放置在似乎是运输通道或沉积地点的上层。三脚架将部署一年。研究的第三个组成部分是建立和使用一个模型与客观的后报沉积事件在该地区。这项研究包括学生的参与和培训，并将导致对陆架过程与地层结构之间关系的理解，这是地层学中的一个重要挑战，并有可能帮助未来的资源勘探。