Theoretical and Modeling Studies of Strain Partitioning

小行星9725717 在会聚边缘的应变分配是造山带的一个共同特征，然而各种解释和预测应变分配的模型往往在预测上不一致。 困难的部分原因在于模拟模型大多与其下方的基底耦合良好，而分析模型经常假设流变性和解耦行为，而这些在实验室模拟模型中通常找不到。 本项目将解决这种不匹配的尝试，以适应分析模型在实验装置中进行测试，并通过使实验室模型的边界条件尽可能接近所需的分析道能力的简单的。 通过平行的实验室和理论建模，旨在建立一个理论上的理解，运动学，流变学和板的几何形状如何影响实验室模型中的应变分配。 结果将是一个合乎逻辑的步骤，使用模型作为工具，在解释地质，地震和大地测量数据，承担在收敛的边缘应变分区的物理。

9725717 Davis Strain partitioning at convergent margins is a common feature of orogens, yet the various models put forward to explain and predict strain partitioning frequently disagree in their predictions. Part of the difficulty stems from the fact that analog models are mostly well coupled to the base beneath them, while analytical models frequently assume rheologies and decoupled behavior not generally found in laboratory analog models. This project will address this mismatch by attempting to adapt analytical models for testing in an experimental apparatus and by making laboratory models that have boundary conditions as close as possible to the simple ones required for analytical tract ability. By parallel laboratory and theoretical modeling, it is intended to establish a theoretical understanding of how kinematics, rheology, and plate geometry affect strain partitioning in laboratory models. Results will be a logical step towards using models as tools in interpreting geologic, seismic, and geodetic data that bear upon the physics of strain partitioning at convergent margins.