Active Tectonics of Diffuse Intracontinental Deformation

这是一个涉及安装和监测横跨盆地和山脉的连续GPS网络的项目。科学目标是确定大地测量确定的应变是否集中在与弹性回弹理论一致的历史高地震矩释放带内，还是以更分散的方式分散开来。到目前为止，陆地和空间大地测量技术在解决板内应变积累的非均质性方面都取得了有限的成功，因为沿板内断裂带的滑动速率通常等于或低于传统GPS或陆地测量的分辨率水平，或约1毫米/年。然而，利用GPS连续监测技术，在不到5年的时间内就可以解决1毫米/年的速率问题。通过适当的网络设计，现在可以获得整个漫射造山带的高分辨率运动学图像。＊＊＊

9418784 Wernicke This is a project involving the installation and monitoring of a continuous GPS network across the Basin and Range. The scientific goal is to determine whether the geodetically determined strain is concentrated within bands of historically high seismic moment release, consistent with the elastic rebound theory, or is spread out in a more diffuse manner. Until now, both land- and space- based geodetic techniques have had limited success in resolving heterogeneity in intraplate strain accumulation, because the slip rates along intraplate fault zones are usually at or below the level of resolution for conventional GPS or land-based surveys, or about 1mm/yr. However, with the technique of continuous GPS monitoring, rates of 1mm/yr are resolvable in less than five years. With appropriate network design, a high-resolution kinematic image of an entire diffuse orogen is now within reach. ***