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.

Walsh/Harris/Ogston 向 PI 提供资金，用于收集有关 Waipaoa 大陆架的数据，以建立在该地区先前工作成果的基础上。该研究的目的是使用底部三脚架记录与沿明显运输路线的沉积物过程相关的数据，并收集岩心，并在某些地点测量临界剪切应力。该研究将考虑之前研究中收集岩心的位置，该研究的一个主要重点是比较不同年份收集的岩心，以确定是否沉积了额外的层。还将在这些地点进行放射化学研究，以帮助量化沉积物的沉积情况。底部三脚架将沿着架子上的一条线放置，靠近架子断裂处以及看似运输路径或沉积地点的区域的上部隆起处。三脚架将部署一年。该研究的第三个组成部分是创建和使用一个模型，该模型具有该地区客观的后报沉积事件。该研究包括学生的参与和培训，并将导致对陆架过程与由此产生的地层结构之间关系的理解，这是地层学的一个重要挑战，并有可能帮助未来的资源勘探。