Collaborative Research on Ocean Ridge - Hot Spot Interactions and Their Implications for the Structure of Oceanic Plateaus

大洋脊-热点相互作用的协同研究及其对大洋高原结构的影响

• 批准号: 9302192
• 负责人: Marcia McNutt
• 金额: --
• 依托单位: Massachusetts Institute of Technology
• 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: 1994-01-15 至 1997-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9302192&HistoricalAwards=false
• 关键词: Collaborative; Research; Ocean; Ridge; Hot

McNutt 9302192 The PIs will analyze geophysical data and perform modelling on Galapagos Hot Spot data to understand how hot spots interact with a spreading center. This is an extension of the current work on modelling bathymetry and gravity in the Galapagos. A 3-D modelling experiment will be performed to explore the influences of viscosity variations, pressure gradients and buoyance forces on plume entrainment and dispersion, temperature structure and melt production. The model will be used to calculate excess crustal thickness, depth anomalies, gravity anomalies and variations in the elastic plate thickness. The overall goal is to better understand mantle dynamics of ridge-lume interactions.

麦克纳特9302192 PIS将分析地球物理数据，并对加拉帕戈斯热点数据进行建模，以了解热点如何与扩散中心相互作用。这是目前在加拉帕戈斯群岛建立水深和重力模型工作的延伸。通过三维模拟实验，研究了粘性变化、压力梯度和浮力对羽流卷吸扩散、温度结构和熔体生成的影响。该模型将用于计算超额地壳厚度、深度异常、重力异常和弹性板块厚度的变化。总体目标是更好地了解海脊-云柱相互作用的地幔动力学。