Calcareous Nannofossil Assemblage Changes Across the Cretaceous/Tertiary Boundary: A Global Synthesis

跨越白垩纪/第三纪边界的钙质超微化石组合变化：全球综合

• 批准号: 9316960
• 负责人: James Pospichal
• 金额: $ 11.62万
• 依托单位: Florida State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-03-15 至 1997-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9316960&HistoricalAwards=false
• 关键词: Calcareous; Nannofossil; Assemblage; Changes; Across

9316960 Pospichal PIs will examine magnitude, mode and nature of extinctions across the K/T boundary for calcareous nannofossils by conducting a global synthesis. They will 1) address issues of magnitude and synchroneity, reworking and survivorship; 2) quantitatively analyze assemblages to address changes before the boundary and issues of differing geographic response; 3) conduct stable isotope analysis of Thoracosphaera to assess impact on bulk analyses of isotopes.

小行星9316960 PI将通过进行全球综合来检查钙质超微化石在K/T边界上的沉积的幅度、模式和性质。 他们将1）解决规模和同步性，改造和生存的问题; 2）定量分析组合，以解决边界前的变化和不同地理响应的问题; 3）对Thoracosphaera进行稳定同位素分析，以评估对同位素批量分析的影响。