Paleomagnetic Study of an Active Arc-Continent Collision

9406652 Coe巴布亚新几内亚是少数几个弧-大陆碰撞积极产生山带的地方之一，因此是当今大陆增生的典型地区。然而，该地区新构造的几个相互竞争的模型指出，需要更可靠的数据。古地磁提供了这样一种工具，结合基本的地质信息，可以证明变形过程中块体旋转的数量、速度和规模。这项工作将利用年轻的沉积物和正在进行的变形来确定块体的大小，并证明在每个块体到达和碰撞时是否发生了连续的旋转。结果将有助于理解行为，也将对菲尼斯特雷山脉的平行研究和巴布亚新几内亚海岸海平面阶地隆起的速率和形态的研究具有宝贵的价值。

9406652 Coe Papua New Guinea is one of the few places where an arc- continent collision is actively producing a mountain belt, and as such serves as a type area for present day continental accretion. However, several competing models of the neotectonics of the region points out the need for more robust data. Paleomagnetism offers such a tool, that in conjunction with basic geologic information, can demonstrate the amount, rate and scale of rotations of blocks during deformation. This work will take advantage of the young sediments and the on-going deformation to define block size and to demonstrate whether or not sequential rotations of blocks occurs as each arrives and collides. Results will help understand behavior and also will be invaluable in parallel studies of the Finisterre range and studies of the rate and morphology of sea level terrace uplift along the Papua New Guinea coast.