Chemistry and Morphology of Secondary Calcification of Deep-Living Planktic Forminifera

深海浮游虫二次钙化的化学和形态

• 批准号: 9301722
• 负责人: George Lohmann
• 金额: $ 40.21万
• 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: 1993
• 资助国家: 美国
• 起止时间: 1993-11-01 至 1997-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9301722&HistoricalAwards=false
• 关键词: Chemistry; Morphology; Secondary; Calcification; Deep

Lohmann 9301722 Funds are provided to support the continuation of the work on the chemistry and bathymetry of calcification in planktonic foraminifera. The new emphasis will be on the chemistry and growth of secondary calcite. This will improve the paleoceanographic utility of the foraminiferal shell chemistry and will allow a test of the isotopic fractionation during calcification. The new work will build on the techniques developed by the PIs for differentiating chemistries of primary and secondary shell calcites. Morphology of the secondary calcite will be examined to better understand their part in shell formation during the sinking of the shell to the sea floor.

Lohmann 9301722 提供资金支持继续进行南极有孔虫钙化的化学和水深测量工作。新的重点将放在次生方解石的化学和生长。 这将提高有孔虫壳化学的古海洋学效用，并将允许在钙化过程中的同位素分馏测试。这项新工作将建立在PI开发的技术基础上，用于区分原生和次生壳方解石的化学成分。将对次生方解石的形态进行检查，以更好地了解它们在贝壳下沉到海底期间形成贝壳的作用。