Collaborative Research: Paleomagnetic Investigations of Late Cretaceous & Early Tertiary Volcanic Rocks from Montana

在晚白垩世至古新世期间，北美洲明显的极地漂移路径包含一个偏转或尖峰，可能反映了一个主要板块重组的时期。然而，APW的分辨率不足以证明尖头两侧的部分是小圆路径，尖头是一个明显的断裂。本项目将利用蒙大拿州晚白垩世至始新世的几个火山序列，利用标准的古地磁技术，提炼北美晚白垩世的表观极移路径。这项工作将与蒙大拿大学的研究人员合作进行。

The apparent polar wander path for North America during the Late Cretaceous to Paleocene interval contains a deflection or cusp that may reflect a period of major plate reorganization. However, the resolution of the APW is insufficient to demonstrate that portions on either side of the cusp are small circle paths and that the cusp is a distinct break. This project will utilize several volcanic sequences of Late Cretaceous to Eocene age in Montana to refine, using standard paleomagnetic techniques, the North American Late Cretaceous apparent polar wander path. The work will be conducted in collaboration with researchers at the University of Montana.