Laurel B. Goodwin
Office: 175 Weeks Hall
The most significant deformation of the earth's crust is accommodated by major fault systems, which extend into shear zones at depth. The central focus of my research is to understand how such brittle-to-ductile systems evolve in both space and time. An accurate reading of the structural record is necessary to understand processes such as strain localization and fluid-fault interactions. I use various combinations of the following tools to accomplish this goal: • detailed mapping and structural analysis • structural petrography • image analysis (to quantify structural patterns) • permeability analysis • analysis of crystallographic preferred orientations of minerals in rocks • electron microscopy (both SEM and TEM). In general, I link observations made at different scales in order to solve specific problems. These problems range from material controls on near-surface fault-zone deformation processes to the structural record of rheology of lower crustal rocks. I am particularly interested in how macroscopic structures reflect the underlying deformation mechanisms. Another area of specific interest is fault-zone deformation of granular porous material (such as poorly lithified sediments and nonwelded tuffs), and the influence of resulting structures on multi-phase fluid flow and transport.
The Structural Geology & Tectonics research group consists of myself and Professor Basil Tikoff along with several graduate students and post-doctoral researchers. Learn more at the research group's website.
Prospective student opportunitites
The SG&T research group's facilities encompass all scales of analysis and reflect our collaboration with other research groups in the Department of Geology & Geophysics. Examine our facilities here.