Accretion Events in the Northern Andes

发展中国家科学奖将支持Juan Jose Estrada的论文研究，他是纽约州立大学宾厄姆顿分校地质学专业的哥伦比亚研究生，在William MacDonald教授的指导下学习。该项目旨在评估哥伦比亚安第斯山脉主要增生事件的假设。研究人员将从三个主要的可疑地块收集古地磁证据；对缝间带剪切感进行了构造测量；并将结果整合到构造轨迹和板块运动的计算机模型中。实地考察的重点将放在哥伦比亚安第斯山脉可疑地形的三个主要地理区域。调查人员将确定这些地形的起源纬度。地图区域的露头将受到主要关注。将沿若干断裂带寻找剪切感和顺序变化。一个主要的目标将是验证这些区域最初出现的年龄。这些新数据将允许新的计算机生成与板块运动有关的碰撞事件地图。有了这笔奖金，哥伦比亚合作者将获得面向古磁场研究的现代技术方面的培训，这将有助于培养哥伦比亚下一代地质学家。美方将从中获得对制版工艺的新见解。

This Science in Developing Countries award will support the dissertation research of Juan Jose Estrada, A Colombian graduate student in geology at the State University of New York, Binghamton, under the supervision of Professor William MacDonald. The project aims to evaluate hypotheses of major accretionary events in the Colombian Andes Mountains. The researchers will collect paleomagnetic evidence from three major suspect terranes; make structural measurements on sense of shear on intervening suture zones; and integrate the results into computer models of tectonic trajectories and plate motions. Field emphasis will be on three main geographic regions of suspect terranes in the Colombian Andes. The investigators will identify latitudes of origin of these terranes. Outcrops in a mapped region will receive primary focus. Sense of shear and sequential changes will be sought along several fault zones. A major goal will be to verify ages of these zones' initial appearance. These new data will permit new computer-generated maps of collision events in relation to plate motions. With this award, the Colombian collaborator will acquire training in modern techniques of paleomagnetic field-oriented research, which will help train the next generation of Colombian geologists. The U.S. side will gain from the opportunity to obtain new insights into plate processes.