SGER: Field Verification of a Carbonate Ion Effect on the Carbon Isotopic Composition of Planktonic Foraminifera

SGER：碳酸盐离子对浮游有孔虫碳同位素组成影响的现场验证

• 批准号: 9726821
• 负责人: Howard Spero
• 金额: $ 4.81万
• 依托单位: University of California-Davis
• 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: 1997-09-01 至 1999-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9726821&HistoricalAwards=false
• 关键词: SGER; Field; Verification; Carbonate; Ion

This SGER award will support analysis of stable isotopes in individual specimens of planktic foraminifera collected in sediment traps from the equatorial Pacific and off Bermuda. The objective is to determine whether isotopic ratios are dependent upon ambient-water alkalinity as observed in controlled laboratory experiments. If an alkalinity effect exists and can be quantified, published interpretations of changes in ocean production, circulation, and pCO2 based upon foraminiferal isotope data will require revision.

该SGER奖将支持从赤道太平洋和百慕大海域的沉积物捕集器中收集的南极有孔虫个体标本的稳定同位素分析。 其目的是确定同位素比值是否依赖于环境水碱度在受控实验室实验中观察到的。 如果碱度效应存在并可以量化，那么根据有孔虫同位素数据对海洋生产、循环和pCO2变化的已发表解释将需要修订。