Incipient Cleavage Development in Mudrock, Revealed by Magnetic Ellipsoid Evolution

在自然变形的岩石中，最常见的平面结构是解理。一些控制解理发展的机制已经被合理地理解，但是一些重要的问题需要深入了解最早的解理结构是如何开始的。该项目的目标是识别和量化泥岩中解理形成的初始阶段，在渗透结构形成之前。泥岩的解理发育在其初期阶段，在露头没有可见的结构，可以很容易地通过磁各向异性椭球来跟踪，该项目涉及未变形到劈裂岩石序列的磁椭球演化，这保留了结构发育的完整序列，磁性矿物学特征将使用扫描电镜和x射线技术来确定。研究结果有望阐明在变形的最早阶段早期解理织物的获得

9814343Pares In naturally deformed rocks the most common planar fabric is cleavage. Some of the mechanism controlling the development of cleavage are reasonably understood, however several important problems require insight into how the earliest cleavage fabric initiated. This project's goal is to recognize and quantify the incipient stages of cleavage formation in mudrocks, prior to the development of a penetrative fabric. The development of cleavage in its incipient stage in mudrocks, where there are no visible structure in outcrop, can be readily tracked by the magnetic anisotropy ellipsoid, and this project involves magnetic ellipsoid evolution in sequences of undeformed to cleaved rocks, which preserves the complete sequence of fabric development, characterization of the magnetic mineralogy responsible will be determined using SEM microscopy and x-ray techniques. Results are expected to illuminate the acquisition of incipient cleavage fabric in the earliest stages of deformation.***