A High Resolution Plate Kinematic Flowline of the Pacific- Antarctic Ridge

太平洋-南极海脊高分辨率板块运动流线

• 批准号: 9300945
• 负责人: Steven Cande
• 金额: $ 7.01万
• 依托单位: University of California-San Diego Scripps Inst of Oceanography
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-03-15 至 1995-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9300945&HistoricalAwards=false
• 关键词: Resolution; Plate; Kinematic; Flowline; Pacific

The Pacific-Antarctic ridge is the key link in the plate circuit describing the relative motion of the plates of the Pacific basin and the surrounding continental terranes. This project involves a shipboard survey of critical flowline, at high latitude, crossing the Pacific-Antarctic ridge. The objectives of the program are to: (1) construct a high resolution plate kinematic model of the South Pacific for the past 50 Ma; (2) analyze the temporal evolution of both ridge parallel and fracture zone crustal morphology; (3) model the deep structure of fracture zone FZ XII using combine Geosat, Hydrosweep, and gravity data; and (4) evaluate the contributions of chemical remnant magnetization and thermo-viscous magnetization to the source of marine magnetic anomalies.

太平洋-南极海脊是板块的关键环节 描述太平洋板块相对运动的回路 盆地和周围的大陆盆地。这个项目 涉及在高纬度对关键出油管进行船上调查， 穿越太平洋-南极海脊 的目标 程序是：（1）建立一个高分辨率的板块运动学 （2）分析了南太平洋近50 Ma来的环流模式 平行脊地壳和断裂带地壳时间演化 （3）模拟FZ XII断裂带的深部结构 使用联合收割机Geosat、Hydrosweep和重力数据;以及（4） 评估化学剩余磁化的贡献， 热粘性磁化对海洋磁源的影响 异常