Campanian to Cenozoic Calcareous Nannofossil Biogeography of the South Atlantic Ocean and Southern Ocean Basins Based on New ODP Drill Cores

基于新 ODP 钻芯的南大西洋和南大洋盆地坎帕尼亚至新生代钙质超化石生物地理学

• 批准号: 9118480
• 负责人: Sherwood Wise
• 金额: $ 16.37万
• 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: 1992
• 资助国家: 美国
• 起止时间: 1992-01-15 至 1994-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9118480&HistoricalAwards=false
• 关键词: Campanian; Cenozoic; Calcareous; Nannofossil; Biogeography

This award supports the analysis of calcareous nannofossil assemblages from high quality Deep Sea Drilling Project/Ocean Drilling Program (DSDP/ODP) drill cores from the South Atlantic and Southern Ocean basins in order to reconstruct the thermal gradient of surface waters of those basins for the Campanian to Cenozoic time interval (84 million years ago to the present). This research applies statistical methods based on a polar ordination technique. Using this technique, and refining it through closer sampling intervals and a wider spectrum of recent ODP sites, particularly from the Antarctic Sector of the Southern Ocean (mainly ODP Legs 113 and 114 sites), this work will further refine the zonation and biochronology of nannofossils of the Southern Ocean, characterize major surface water masses and infer from biological gradients latitudinal thermal gradients, and record in detail latitudinal shifts in surface water masses through time as a means of tracing steps in the deterioration of global climates.

该奖项支持了对钙质超微化石的分析 高质量深海钻探项目/海洋 钻探计划（DSDP/ODP）从南大西洋钻探岩心， 南大洋盆地，以便重建热梯度 这些盆地的地表沃茨的Campanian到新生代 时间间隔（8400万年前到现在）。 本研究 应用基于极坐标排序技术的统计方法。 使用这种技术，通过更近距离的采样 间隔和更广泛的最近ODP网站，特别是 从南大洋的南极部分（主要是ODP航段） 113和114个地点），这项工作将进一步完善地带划分， 南大洋超微化石的生物年代学， 主要地表水体，并从生物梯度推断 纬度温度梯度，并详细记录纬度 地表水团随时间的变化作为一种追踪手段 全球气候恶化的步骤。