Processes of Folding and Cleavage Development and the Use of Compositional Imaging in Fabric Analysis

9725380威廉姆斯 褶皱劈理是多重变形岩石中最常见的劈理类型，但它是如何形成的仍有许多问题。 本项目将调查马萨诸塞州西部的莫尔敦组，那里的小规模褶皱和锯齿状劈理暴露良好。 此外，这一地区还具有梯度之间的uncrenulated域，域与经典的锯齿状解理，片状高应变域，和个别组成层可以跟踪整个织物过渡。 这项工作将整合褶皱和裂解分析，与质量平衡和可能的体积变化有关的地球化学和成分成像，以记录质量转移。 研究结果有助于对褶皱解理变形机制的认识.

9725380 Williams Crenulation cleavage is the most common type of cleavage in multiply deformed rocks, but many questions remain about how it is formed. This project will investigate the Moretown Formation in Western Massachusetts where small-scale folding and crenulation cleavage is well-exposed. Additionally, this area also features a gradient between uncrenulated domains, to domains with classic crenulation cleavage, to schistose high-strain domains, and individual compositional layers can be traced across the fabric transitions. The work will integrate analysis of folds and cleavage, geochemistry related to mass balance and possible volume changes and compositional imagining to document mass transfer. Results shoud understanding of deformation mechanisms involved in crenulation cleavage.