Geomorphic and Geodynamic Feedback During Orogenesis

9526954威利特，这项研究的目的是建立一个改进的造山模型，并进行数值实验，以揭示在演化的山带中构造变形和地表过程之间反馈的性质和强度。这些实验将以从文献和数字高程模型中收集的活动山带的地质和地形观测数据集为指导。为了实现这一目标，将综合现有的两个地面过程模式(SPM)，并建立一个新的模式，该模式考虑地形气候、化学风化和高山冰川作用。将使用耦合模型预测几个精心选择的山脉带的宏观地貌和折返模式，并将结果与观测结果进行验证。这项研究的最终结果应该是更好地了解在演化的山带中构造变形和地表过程之间反馈的性质和强度。

9526954 Willett The objective of this research is to construct an improved orogenesis model and conduct numerical experiments that will reveal the nature and strengths of feedback between tectonic deformation and surface processes in evolving mountain belts. The experiments will be guided by a dataset of geologic and topographic observations of active mountain belts, collected both from the literature and digital elevation models. To accomplish this objective, two extant surface-processes models (SPMs) will be synthesized, and a new model constructed that accounts for orographic climate, chemical weathering, and alpine glaciation. The macrogeomorphology and exhumation patterns of a few carefully selected mountain belts will be predicted using the coupled model and the results tested against observations. The ultimate outcome of this research should be an improved underqtanding of the nature and strengths of feedback between tectonic deformation and surface processes in evolving mountain belts.