Collaborative Study of Ice-Rafted Sediment Petrology and Climate Variability in the Subpolar North Atlantic

北大西洋副极地冰筏沉积物岩石学与气候变化的合作研究

• 批准号: 9712456
• 负责人: Gerard Bond
• 金额: $ 19.14万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-09-15 至 2000-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9712456&HistoricalAwards=false
• 关键词: Collaborative; Study; Ice; Rafted; Sediment

This project will analyze the petrology of ice-rafted detritus in high-sedimentation-rate cores from the North Atlantic, concentrating on the last glacial interval. Previous work has identified a persistent cycle of 1500 years at one site during both glacial and interglacial intervals, implying an inherent instability in the Earth's climate system resulting in varying production of icebergs. The project will expand the study to other sites, in order to determine the reliability of this finding.

该项目将分析北大西洋高沉积速率岩心中冰筏碎屑的岩石学，重点是末次冰期。 以前的工作已经确定了一个持续的1500年的周期在一个地点在冰期和间冰期的间隔，这意味着在地球的气候系统中的固有的不稳定性，导致不同的生产冰山。 该项目将把研究扩大到其他地点，以确定这一发现的可靠性。