RUI: Structural and Metamorphic Evolution of the Intermontane Coast Plutonic Complex Transition, Bella Coola,British Columbia

太平洋西北部由几个异地地体组成，这些地体在中生代和第三纪与北美相连。海岸深成杂岩是一条1800公里长的变质岩和深成岩带，掩盖了两个广泛的、可能远行的地壳碎片--山间和岛上超地体之间的联系。西部碎屑的沉积模式依赖于对海岸深成杂岩构造演化的清楚了解，但变形的时代和样式却鲜为人知。该项目将通过对不列颠哥伦比亚省贝拉库拉附近的这些岩石进行详细的构造和变质调查来解决这些问题。这些结果对了解地体增生的构造有重要意义。

The pacific northwest consists of several allochthonous terranes that were joined to North America during the Mesozoic and Tertiary. The Coast Plutonic Complex, an 1800 km-long belt of metamorphic and plutonic rocks obscures the contact between two extensive and probably far-traveled crustal fragments, the Intermontane and Insular superterranes. Models for the accretion of the western fragment depend on a clear understanding of the structural evolution of the Coast Plutonic Complex, yet the age and style of deformation are poorly known. This project will address these issues by a detailed structural and metamorphic investigation of these rocks near Bella Coola, British Columbia. Results are important to understanding of the tectonics of terrane accretion.