Three-Dimensional Upwelling Beneath A Mid-Ocean Ridge

大洋中脊下的三维上升流

• 批准号: 9020408
• 负责人: Jian Lin
• 金额: $ 3.52万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-02-15 至 1993-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9020408&HistoricalAwards=false
• 关键词: Three; Dimensional; Upwelling; Beneath; Mid

This is a theoretical study of the dynamic processes shaping mantle flow beneath mid.ocean spreading centers. three dimensional numerical models of flow beneath a spreading center will be constructed to try to explain observed bulls.eye gravity anomalies along slow.spreading ridges and their absence along intermediate and fast spreading ridges. The models will include the irreversible effects of melting on shaping the density structure and will explore the effects of spatial, temperature, and composition dependent rheology.

这是一个理论研究的动态过程的塑造 大洋中部扩张中心之下的地幔流动。三 扩散中心下方流动的三维数值模型 将试图解释观察到的公牛。眼睛重力 异常沿着缓慢扩张的山脊和它们的缺失沿着 中间和快速扩展的脊。模型将包括 熔化对形成密度的不可逆影响 结构，并将探讨空间，温度， 和组合物依赖的流变学。