COLLABORATIVE RESEARCH: Sequence of Thrusting and Implications for Mechanical Models of Thrust Belts

最近开发的逆冲带模型要求， 止推楔内部变形，以达到并保持临界 断层发育时的锥角。 虽然一些 机制是已知的，将实现这一点，该模型已 被质疑的理由是，缺乏广泛的 冲断带内部变形和连续屈服 而且有证据表明逆冲断层是在 时尚. 本研究旨在确定锥角保持是否 机构在足够的幅度下操作， 模型功能。 洛矶山脉的断层 和阿巴拉契亚山脉南部将被研究， 从平衡横截面恢复，结果与 产品预测从正演模拟与原来的 科. 预计结果将确定 楔体模型

A recently developed model for thrust belts requires that the thrust wedge deform internally to attain and maintain a critical taper angle during fault development. Although a number of mechanisms are known that would accomplish this, the model has been questioned on the grounds that there is a lack of extensive internal deformation and continuous yielding within thrust belts and that there is evidence that thrusts develop in piggy-back fashion. This study seeks to determine if taper angle-maintaining mechanisms operate in sufficient magnitude to allow the wedge model to function. Fault sequences in both the Rocky Mountains and the southern Appalachians will be studied and sequentially restored from balanced cross-sections and results compared to products predicted from forward modeling with the original section. Results are expected to establish the viability of the wedge model for thrust sheet emplacement.