Climatic Record of the North Atlantic

北大西洋气候记录

• 批准号: 9217781
• 负责人: Gerard Bond
• 金额: $ 41.37万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-01-15 至 1995-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9217781&HistoricalAwards=false
• 关键词: Climatic; Record; North; Atlantic

A field program to collect piston and gravity cores form N. Atlantic to ascertain the source of material in "Heinrichs" layers and to search for climatic events recorded in ice cores. Heinrich layers are devoid of foraminaferal shells and contain different ice-rafted debris than underlying glacial sediments. Is this PIs will use color variations to identify millennia duration events back to isotopic stage 5 at Site 609. Fresh cores will be obtained in high sedimentation rate areas in sediment drifts. AMS dating will provide chronology.

收集北大西洋地区活塞和重力岩心的实地项目，以确定海因里希斯冰芯层中物质的来源，并搜索冰芯中记录的气候事件。海因里希层缺乏有孔虫壳，包含不同的冰筏碎屑，而不是下面的冰川沉积物。因此，pi将使用颜色变化来识别609站点的同位素阶段5的千年持续事件。在沉积物漂移的高沉积速率区域将获得新的岩心。AMS测年将提供年表。