Collaborative Research: Geodetic Investigations of Oblique Plate Convergence in Sumatra

PI将使用测量进行为期五年的研究， 全球定位系统（GPS）的构造 印度尼西亚群岛。 在第一年，他们将学习 与苏门答腊斜向板块会聚有关的变形。 具体来说，他们将研究脱钩机制 斜滑向正俯冲和剪切滑动的过程 平行于会聚边缘的断层，通过测量 苏美尔断裂西南和东北方向的变形 区 长期目标是将GPS测量扩展到 整个印度尼西亚群岛，专注于特定的 构造问题，如滑动的分布和速率 与班达弧的弧-陆碰撞有关。 GPS是 唯一可用的技术，将提供有关的信息， 澳大利亚大陆岩石圈俯冲速率. 帝汶战壕 PI将开始转让GPS技术 根据美国和印度尼西亚之间的合作安排， 印度尼西亚科学家由国家科学基金会赞助， 基金会、印度尼西亚政府和世界银行。

The PIs will conduct a five-year study using measurements to the Global Positioning System (GPS) of the tectonics of the Indonesian archipelago. In the first year they will study deformation associated with oblique plate convergence in Sumatra. Specifically, they will examine the mechanism of decoupling of the oblique slip into normal subduction and shear slip on faults parallel to the convergent margin, by measuring the deformation both southwest and northeast of the Sumatran fault zone. The long-range goal is to extend GPS measurements across the entire Indonesian archipelago, concentrating on specific tectonic problems such as the distribution and rates of slip associated with arc-continent collision in the Banda arc. GPS is the only available technique that will provide information on the rate of subduction of the Australian continental lithosphere at the Timor trench. The PIs will begin transfer of GPS technology to Indonesia under a cooperative arrangement between U.S. and Indonesian scientists sponsored by the National Science Foundation, the Indonesian government, and the World Bank.