用甚长基线干涉测量（VLBI）数据导出的板块运动参数

本文采用最近获得的ＶＬＢＩ基线变化率，解算了全球５０个ＶＬＢＩ站的站速度。通过对ＶＬＢＩ台站构造稳定性的分析，用位于板块稳定地区台站的站速度求解了欧亚（ＥＵＲＡ）、北美（ＮＯＡＭ）和太平洋（ＰＣＦＣ）三个主要板块之间的相对运动欧拉矢量，这是完全基于ＶＬＢＩ数据导出的板块运动模型，称为ＶＰ－ＭＭ１。通过ＶＰＭＭ１与地学板块运动模型的比较，分析了板块运动的稳定性，得出了几点初步结论。

Plate Motion Parameters Derived From Very Long Baseline Interferometry Data

In this paper, the site velocities of 50 VLBI stations were estimated from the rates of change of VLBI baselines achieved recently. According to analysis of tectonic stability of VLBI stations, the relative motion Euler vectors among Eurasia (EURA), North America (NOAM) and Pacific (PCFC) Plates were derived from the site velocities of VLBI stations which lie in stable parts of plates,this model, called VPMMI, is completely based upon VLBI data. According to comparison of VPMMI with the geological plate motion models, stability of plate motions was analysed and several conclusions were drawn.