Collaborative Research: Refinement of North Atlantic Paleotemperature Records From O-18 in Arctica Shells for the Last 1000 Years

合作研究：通过北极贝壳中的 O-18 改进过去 1000 年的北大西洋古温度记录

• 批准号: 0081826
• 负责人: Glenn Goodfriend
• 金额: $ 11.82万
• 依托单位: George Washington University
• 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: 2000-09-15 至 2002-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0081826&HistoricalAwards=false
• 关键词: Collaborative; Research; Refinement; North; Atlantic

Summary: This ESH award will support further development and application of the use of marine molluses to reconstruct annually-resolved estimates of water temperature. Four directions are planned: (1) evaluation of amino-acid dating method by comparison with 14C dates, to address varying reservoir age, (2) construct an annual record of 18O for the interval 1600-1880 Ad using cross-matching of growth bands from dated specimens, (3) assess ontogenetic effects on 18O by comparing the same time interval in specimens of different age and (4) explore utility of Mg/Ca and Sr/Ca to resolve temperature and salinity effects upon the oxygen record.

摘要：该ESH奖将支持进一步开发和应用海洋软体动物重建每年可分辨的水温估计值。(1)通过与~(14)C测年的比较来评价氨基酸测年方法，以反映不同的储集层年龄；(2)利用来自测年样品的生长带的交叉匹配来建立1600-1880Ad年间的~(18)O年记录；(3)通过比较不同年龄样品中相同的时间间隔来评价个体发育对~(18)O的影响；(4)探索利用镁/钙和锶/钙来解决温度和盐度对氧记录的影响。