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: 0840887
• 负责人: Andrea Ogston
• 金额: $ 33.91万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Continuing 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=0840887&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/奥格斯顿基金被提供给私人项目，用于收集Waipaoa大陆架的数据，以该地区先前工作的结果为基础。这项研究的目的是利用底部三脚架记录沿一条明显的运输路线的泥沙过程的相关数据，收集岩心，并在一些地点测量临界剪切应力。这项研究将考虑在之前的研究中收集岩心的位置，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层沉积。还将在这些场址进行放射化学研究，以帮助量化沉积物的沉积。底部的三脚架将沿着大陆架上的一条线放置，靠近大陆架断裂，并在似乎是运输途径或沉积地点的区域的上部隆起。三脚架将部署一年。研究的第三个组成部分是建立和使用具有该地区客观后验沉积事件的模型。这项研究包括学生的参与和培训，并将导致对陆架过程与形成的地层结构的关系的理解，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。