Collaborative Research: Monitoring Crustal Motion in the Southwest Pacific Using the Global Positioning System (GPS)

pi将使用全球定位系统（GPS）来监测印度-澳大利亚板块和太平洋板块之间复杂的板块边界上的地壳运动。这个复合体包括赫布里底岛弧、斐济高原、劳盆地和汤加岛弧，其特点是板块辐合和弧后扩张速度非常快。利用GPS建立横跨该地区许多主要构造要素的岛间基线，通过对这些基线的反复观测，将有可能直接观察到板块汇聚、弧内应变和弧后扩张的运动学。将进行该实验的财团包括北卡罗来纳州立大学、康奈尔大学、德克萨斯大学奥斯汀分校、科罗拉多大学、美国国家大地测量局、ORSTOM（新喀里多尼亚）和新南威尔士大学（澳大利亚）。

The PIs will use the Global Positioning System (GPS) to monitor crustal motion across a plate boundary complex between the Indo-Australian and Pacific plates. This complex, which includes the Hebrides arc, the Fiji Plateau, the Lau Basin and the Tonga arc, is characterized by very high rates of plate convergence and back-arc spreading. By using GPS to establish inter-island baselines that straddle many of the major tectonic elements is the region, it will be possible, by repeated observation of these baselines, to directly observe the kinematics of plate convergence, intra-arc strain and back-arc spreading. The consortium that will perform the experiment included North Carolina State University, Cornell University, the University of Texas at Austin, the University of Colorado, the National Geodetic Survey, ORSTOM (New Caledonia) and the University of New South Wales (Australia).