Convergent Margin Plate Kinematics and Mechanics: 1998-2000GPS Geodesy in the North Andes

收敛边缘板运动学和力学：1998-2000 年北安第斯山脉 GPS 大地测量

• 批准号: 9725693
• 负责人: James Kellogg
• 金额: $ 16万
• 依托单位: University of South Carolina at Columbia
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-02-01 至 2001-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9725693&HistoricalAwards=false
• 关键词: Convergent; Margin; Plate; Kinematics; Mechanics

9725693 Kellogg Key Central and South American (CASA) GPS stations will be reoccupied to analyze on-going convergent margin deformation. The three major goals of this project are: 1) To monitor the strain accumulation preceding the predicted large subduction zone thrust earthquake in the Ecuador trench. The proposed measurements together with 3-dimensional elastic half space models will map the rates of elastic strain locking and relate these to the rupture zones for the 1906, 1942, 1958, and 1979 earthquakes, testing models for the mechanics of subduction zone earthquakes. 2) Resurvey the network in northern Colombia to study the kinematics and mechanics of an active arc - continent collision zone. 3) Reoccupy sites in the South Caribbean deformed belt to study deformation in an accretionary prism to determine the location of the current Caribbean-South American plate boundary. This study is jointly funded by a large group of international agencies. ***

9725693凯洛格 将重新使用中美洲和南美洲（CASA）的关键GPS站，以分析正在进行的会聚边缘变形。 该项目的三个主要目标是：1）监测厄瓜多尔海沟中预测的大型俯冲带逆冲地震之前的应变积累。 所提出的测量与三维弹性半空间模型一起将绘制弹性应变锁定的速率，并将其与1906年、1942年、1958年和1979年地震的破裂区联系起来，测试俯冲带地震的力学模型。 2)重新测量哥伦比亚北方的网络，以研究一个活跃的弧-大陆碰撞带的运动学和力学。 3)重新占据南加勒比变形带的场地，研究增生棱柱体的变形，以确定当前加勒比-南美洲板块边界的位置。 这项研究由一大批国际机构共同资助。 ***