Collaborative Research: An Abyssal Circulation Type Section for the North Atlantic

合作研究：北大西洋深海环流类型剖面

• 批准号: 0936472
• 负责人: Lloyd Keigwin
• 金额: $ 126.02万
• 依托单位: Woods Hole Oceanographic Institution
• 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=0936472&HistoricalAwards=false
• 关键词: Collaborative; Research; Abyssal; Circulation; Type

Funds are provided to analyze seven long cores recovered from the Bermuda Rise in the North Atlantic Ocean, a key location where the physical and geochemical properties of exported North Atlantic Deep Waters are set by mixing between the northern and southern abyssal water masses. The research aims to create an abyssal type section of deepwater circulation for the last glacial-interglacial cycle. The research plan includes detailed stratigraphic investigations of piston cores and the initial measurement of several first order proxies of deep water circulation and surface water conditions for the last 160,000 years. The collaborative work plan includes a suite of analyses that include scanning x-ray analyses, radiocarbon and stable isotopic analysis, trace and minor element analysis, Uranium series analyses, and compiling Neodymium records from sediments. The broader impacts involve the education and training of graduate and undergraduate students, and a high school student. Results from this research will be adapted for coursework and lectures. The data will be archived and available for future paleoceanographic and paleoclimate studies.

提供了资金来分析从北大西洋的百慕大崛起中回收的七个长核心，这是一个关键的地点，在这里，通过在北大西洋和南部的深渊水块之间混合出口的北大西洋深水的物理和地球化学特性。 该研究旨在为最后一个冰川间冰周创建深水循环的深处类型部分。 该研究计划包括对活塞核心的详细地层研究以及在过去的160，000年中对深水循环和地表水条件的几个一阶代理的初步测量。 协作工作计划包括一系列分析，包括扫描X射线分析，放射性碳和稳定的同位素分析，痕量和次要元素分析，铀系列分析以及从沉积物中汇编新近山记录。 更广泛的影响涉及研究生和本科生的教育和培训，以及一名高中生。 这项研究的结果将适用于课程和讲座。这些数据将被存档，并用于未来的古海洋学和古气候研究。