Collaborative Research: Past Deep-Sea Carbonate Ion Concentrations as Constraints on Scenarios Purporting to Explain Quaternary Atmospheric CO2 Changes

合作研究：过去的深海碳酸盐离子浓度对旨在解释第四纪大气二氧化碳变化的情景的限制

• 批准号: 0081957
• 负责人: George Lohmann
• 金额: $ 3.57万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-09-01 至 2002-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0081957&HistoricalAwards=false
• 关键词: Collaborative; Research; Past; Deep; Sea

Summary: This ESH award will attempt to estimate past concentration of carbonate ion in the ocean during glacial/interglacial climate transitions by examining the occurrence and magnitude of changes in sediment carbonate preservation. Carbonate concentration will be estimated by two methods: mass/size ratio of planktic foraminifera and the ratio of sand-sized to total calcite, in depth transects of cores from the eastern and western tropical Atlantic, Pacific and Indian Oceans.

总结：该ESH奖项将试图通过检查沉积物碳酸盐保存的发生和变化幅度来估计冰川/间冰期气候转变期间海洋中碳酸盐离子的过去浓度。 将通过两种方法估算碳酸盐浓度： 质量/尺寸比的南极有孔虫和砂的比例，总方解石，在深度断面的核心从东部和西部的热带大西洋，太平洋和印度洋。