Mantle Plume-Lithosphere Interaction: An Interdisciplinary Study of the Dynamics of the Hawaiian Hotspot

地幔柱-岩石圈相互作用：夏威夷热点动力学的跨学科研究

• 批准号: 9303402
• 负责人: David Bercovici
• 金额: $ 22.57万
• 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: 1994
• 资助国家: 美国
• 起止时间: 1994-03-01 至 1998-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9303402&HistoricalAwards=false
• 关键词: Mantle; Plume; Lithosphere; Interaction; Interdisciplinary

9303402 Bercovici The spatial variability of hotspot signatures is a basic feature of the dynamics of mantle plumes. This variability is most clearly expressed in the formation of discrete islands along the axis of the Hawaiian chain, large wavelength variation in the geoid and topography of the Hawaiian swell, differing geochemical signatures of the volcanoes that comprise the islands, and in the dual, parallel ridge system that exists on many of the islands. The purpose of this project is to examine the causes of this spatial variability in the context of the dynamics of mantle plume heads spreading beneath and/or interacting with the lithosphere. This will be done through a synthesis of geophysical and geochemical data analyses with geodynamical modelling. ***

9303402 Bercovici 热点特征的空间变化是地幔柱动力学的基本特征。 这种变化最清楚地表现在沿夏威夷链轴离散岛屿的形成、夏威夷海涌的大地水准面和地形的大波长变化、构成岛屿的火山的不同地球化学特征以及双平行分布中。许多岛屿上存在的山脊系统。 该项目的目的是在地幔柱头部在岩石圈下方传播和/或与岩石圈相互作用的动力学背景下研究这种空间变化的原因。 这将通过地球物理和地球化学数据分析与地球动力学建模的综合来完成。 ***