RUI: Structural Geology of the Alpine Zone in the Presidential Range of New Hamsphire

新英格兰北部多变形变质沉积岩具有复杂的韧性变形史，发生于泥盆系阿卡迪亚造山运动时期。变形序列的新模型已经被提出，这个项目将在新罕布什尔州北部的总统山脉进行测试，那里可能是阿卡迪亚逆冲推覆体的根区。变形过程中的压力和温度将被确定，而变形的时间将由辐射测年技术限制。这些结果与新英格兰地区的其他研究相结合，有望阐明影响新英格兰地区的复杂的晚古生代多变形。

The polydeformed metasedimentary rocks of northern New England have a complex history of ductile deformation that occurred during the Devonian Acadian Orogeny. New models for the sequence of deformations have been proposed, and this project will test them using exposures in the Presidential Range of northern New Hampshire where the possible root zone for Acadian thrust-nappes occurs. The pressures and temperatures during deformation will be determined and the timing of deformation will be constrained by radiometric age techniques. Results, in conjunction with other studies in New England, are expected to clarify the complex late Paleozoic polydeformations that affected New England.