COLLABORATIVE RESEARCH: 3-D Kinematic Evolution of the Charleston-Nebo Salient, Sevier Fold-Thrust Belt

9903105 DeCelles褶皱-冲断带几何形状的一个基本方面是存在弯曲的凸起，其中冲断痕迹向运输方向呈宽凸形。 尽管理论和物理模拟模型描述了冲断带凸起的一般发展，但对凸起的三维运动学和变形速率知之甚少。 该项目将测试现有的凸起发育模型，并使用犹他州中北部塞维尔褶皱冲断带的查尔斯顿-尼博凸起开发新模型，该凸起异常良好地保留了运动学历史，而无需随后的叠加。 预计这些结果将使我们更好地了解冲断带凸起环境中的运动学历史和变形速率。

9903105DeCelles A fundamental aspect of fold-thrust belt geometry is the presence of curved salients in which thrust traces are broadly convex towards the transport direction. Although theoretical and physical analog models describe the general development of thrust belt salients, the 3-D kinematics and rates of deformation in salients are poorly understood. This project will test existing models of salient development and develop new models using the Charleston-Nebo salient of the Sevier fold-thrust belt in north-central Utah, which preserves unusually well kinematic history without subsequent overprinting. It is anticipated that the results will yield greater understanding of the kinematic history and rates of deformation within a thrust belt salient environment.