Paleoceanographic History of Intermediate and Deep Water Masses: Continental Margin, Western North Atlantic

中层和深水团的古海洋历史：大陆边缘、北大西洋西部

• 批准号: 8722844
• 负责人: William Balsam
• 金额: $ 8万
• 依托单位: University of Texas at Arlington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-06-01 至 1991-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8722844&HistoricalAwards=false
• 关键词: Paleoceanographic; History; Intermediate; Deep; Water

This project is for a detailed sedimentological, geochemical, and micropaleontological study of piston cores from the continental margin of the eastern USA. The results will include new stable isotopic data, census and computerized shape analysis of benthic foraminifera, organic carbon analysis, determination of C/N ratios on selected samples and accelerator carbon -14 dating from cores at continental slope and rise depths. The goal is to integrate this new information into a paleoceanographic/sedimentologic model which compares the dynamics of intermediate depth water masses along the western boundary of the North Atlantic with the deep water basins of this ocean during the late Quaternary. %%% An understanding of the paleoceanographic history of the North Atlantic is important because oceanographic processes in this region and climatic changes on the surrounding land masses have major effects world-wide. Studies of paleoceanography shed light on paleoclimates. An understanding of paleoclimates, their evolution and ties to the pale ocean can help us understand present ocean-climate interactions.

该项目是一个详细的沉积学， 地球化学和微体古生物学研究 来自美国东部的大陆边缘 结果 将包括新的稳定同位素数据，普查和计算机化 底栖有孔虫形状分析、有机碳 分析、测定选定样品的C/N比， 大陆坡岩芯加速器碳-14定年 和上升深度。 我们的目标是整合这些新信息 一个古海洋学/沉积学模型， 沿着 北大西洋的西部边界与深水 在第四纪晚期，这片海洋的盆地。 %%% 对古海洋学历史的理解 北大西洋之所以重要，是因为 这一地区和周围大陆的气候变化 在世界范围内产生重大影响。 古海洋学研究 揭示了古气候 了解 古气候，它们的演变以及与苍白海洋的联系， 帮助我们了解目前海洋与气候的相互作用。