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: 0936496
• 负责人: Jerry McManus
• 金额: $ 52.04万
• 依托单位: Columbia University
• 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 2013-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0936496&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.

提供资金来分析从北大西洋百慕大隆起回收的七个长岩芯，百慕大隆起是一个关键地点，通过北部和南部深水团的混合来确定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期-间冰期循环创建深水环流的深海型部分。该研究计划包括对活塞芯的详细地层调查以及对过去 16 万年深水循环和地表水状况的几个一级代理的初步测量。协作工作计划包括一系列分析，其中包括扫描 X 射线分析、放射性碳和稳定同位素分析、痕量和微量元素分析、铀系列分析以及从沉积物中汇编钕记录。更广泛的影响涉及研究生和本科生以及高中生的教育和培训。这项研究的结果将适用于课程作业和讲座。这些数据将被存档并用于未来的古海洋学和古气候研究。