Environmental Factors Relating To Quaternary Phosphorite Formation on the Peru Shelf

与秘鲁陆架第四纪磷矿形成相关的环境因素

• 批准号: 9201305
• 负责人: Craig Glenn
• 金额: $ 10.93万
• 依托单位: University of Hawaii
• 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: 1992-05-01 至 1995-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9201305&HistoricalAwards=false
• 关键词: Environmental; Factors; Relating; Quaternary; Phosphorite

The controls on phosphorize formation and mineralization rates will be determined by analysis of the upper several meters of the shelf sediments from cores sampled during ODP leg 112 and several wide-diameter cores to be sampled during two future expeditions. Detailed chronostratigraphic analysis will be obtained by stable isotope analysis of benthonic foraminifera, bulk sediment dating and absolute dating of interdispersed authigenic minerals and shell material. These data will allow the PIs to relate the formation and occurrence of phosphorize to environmental parameters over a time scale of hundreds to tens of thousands of year.

磷的形成与矿化速率的控制 将通过分析上几米的 在ODP第112航次和几个航次期间取样的岩心的陆架沉积物 在未来的两次考察中取样的宽直径岩心。 详细的年代地层分析将通过稳定的 底栖有孔虫同位素分析，整体沉积物年代测定 相互分散的自生矿物和贝壳的绝对定年 材料这些数据将允许PI将地层与 随着时间的推移，环境参数发生磷化 数百年到数万年的规模。