Synchronizing Ice and Sediment Records with Leaf Wax Abundances: A Small Grant for Exploratory Research (SGER)

将冰和沉积物记录与叶蜡丰度同步：探索性研究的小额资助 (SGER)

• 批准号: 0004047
• 负责人: Julian Sachs
• 金额: $ 10万
• 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: 2000
• 资助国家: 美国
• 起止时间: 2000-10-01 至 2000-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0004047&HistoricalAwards=false
• 关键词: Synchronizing; Ice; Sediment; Records; Leaf

Summary: This research will test the concept that leaf wax abundance in deep sea sediments and ice from Greenland represents a proxy for atmospheric dust and can be used to precisely synchronize climate records from ice cores and deep sea sediments. This project will measure leaf wax abundance in sediments from the Bermuda Rise and Bahama Outer Ridge and in two ice cores from Greenland over the interval of ~ 39,000 to 36,000 years ago. The objective will be determine if abrupt climate events believed to occur during this interval can be identified and correlated between the ice core and sediment records by changes in leaf wax abundance and isotopic proxies.

总结：这项研究将测试这样一个概念，即格陵兰岛深海沉积物和冰中的叶蜡丰度代表了大气尘埃的代理，并可用于精确同步冰芯和深海沉积物的气候记录。 该项目将测量百慕大海隆和巴哈马外脊的沉积物以及格陵兰岛的两个冰芯中约39，000至36，000年前的叶蜡丰度。 其目标是确定是否可以通过叶蜡丰度和同位素替代物的变化，在冰芯和沉积物记录之间识别和关联据信在此期间发生的突发气候事件。