Collaborative Research: Mantle Flow at Rifts: Analysis of a Natural Laboratory at the Gulf of Suez Using a PASSCAL Seismic Array and Mumerical Modeling

合作研究：裂谷地幔流：使用 PASSCAL 地震阵列和数值模拟对苏伊士湾自然实验室进行分析

• 批准号: 9910850
• 负责人: David Sparks
• 金额: $ 3.05万
• 依托单位: Texas A&M Research Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-06-15 至 2005-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9910850&HistoricalAwards=false
• 关键词: Collaborative; Research; Mantle; Flow; Rifts

9910850SparksThis project involves a geophysical study of the northern Red Sea where the rift terminates into the sinistral Dead Sea transform and a slow spreading zone in the gulf of Suez. This area is a good natural laboratory for testing plate driven asthenospheric flow vs. bouyancy driven asthenospheric flow during continental rifting. The relative importance of each of these processes is to be evaluated from a combination of surface manifestations (topography, geologic history, subsidence history of basins) and probing of the deep structure with a passive seismic array. The seismic array, in turn, has two parts: a basic crustal structure component to determine basic geometry and a shear wave splitting component to look at mantle flow. The results of these studies will be combined with modeling studies (flexural modeling of rift flanks and mantle flow models) to develop a synthesis of the geodynamics. ***

9910850火花这个项目涉及北方红海的地球物理研究，那里的裂谷终止于死海的左旋转换和苏伊士湾的缓慢扩张区。该区是研究大陆裂谷作用中板块驱动和浮力驱动的软流圈流动的良好天然实验室。 这些过程中的每一个的相对重要性将从表面表现（地形，地质历史，盆地的沉降历史）和探测的深层结构与被动地震阵列的组合进行评估。 而地震台阵又有两个部分：一个是确定基本几何形状的基本地壳结构部分，另一个是观察地幔流动的横波分裂部分。 这些研究的结果将与模拟研究（裂谷侧面的弯曲模拟和地幔流动模型）相结合，以综合地球动力学。***