ROW: Defining Kinematic Stability Fields for Shear-Sense Indicators

许多用来确定变形区剪切感的构造几何形状并没有被很好地理解，也不能用来获得剪切应变值。将开发一种计算机代码，以量化刚性物体和叶理对剪切带织物发展的相对重要性。该代码将使用一系列运动学变量模拟剪切变形。在该项目的每个阶段，模型预测将与来自受良好约束的场地的自然变形的剪切岩石进行比较。这些结果将有助于澄清剪切带中发育的许多构造之间的关系，并确定估计岩石剪应变大小的实用标准。这些发现将对在大量不同构造环境中工作的构造地质学家具有实用价值。

Many structural geometries used to determine the sense of shear in deformation zones are not well understood and cannot be used to obtain shear strain magnitudes. A computer code will be developed to quantify the relative importance of rigid objects and foliations to the development of shear zone fabrics. The code will simulate shearing deformation using a range of kinematic variables. At each stage of the project the model predictions will be compared with naturally deformed sheared rocks from well-constrained sites. The results will help clarify the relationships among many structures developed in shear zones and identify practical criteria for estimating shear-strain magnitude in rocks. These findings will be of practical value to structural geologists working in a great numbers of different tectonic environments.