RUI: Age of Paleozoic Felsic Volcanics in Eastern Vermont

新英格兰的构造历史包括几个古生代 岛弧碰撞加积造山作用 碎片和大陆块。 由于这种构造 复杂性、地层和构造对比困难 尽管进行了广泛的研究， 模棱两可 最近的研究表明，一个被认为是 是一个与北美碰撞的岛弧的残余 在塔康尼克期间， - 志留纪和寒武纪。 这个RUI项目将重新研究这个单元 通过测绘和放射性年龄测定， 碎片的地层位置。 结果将 有助于更好地约束新英格兰西部的构造模型。

The tectonic history of New England includes several paleozoic orogenies that involved collision and accretion of island arc fragments and continental blocks. Because of this tectonic complexity, stratigraphic and structural correlations are difficult and despite extensive study, several key relationships are equivocal. Recent work has shown that a volcanic unit thought to be a remnant of an island arc that collided with North America during the Taconic contains rocks of two distinctly different ages - Silurian and Cambrian. This RUI project will restudy this unit by mapping and radiometric age dating in order to resolve the stratigraphic position of the fragment or fragments. Results will help to better constrain tectonic models of western New England.