Structural Geology > 2004 Workshop > Long demo set #2

Long Demonstrations, Set #2

Session #3 (Tuesday 8:30) , repeated in Session #7 (Thursday 3:30)

L2A: Using the Autocorrelation Function in NIH-Image to Define Shape Preferred Orientations in Rocks and on Mars (Cameron Davidson, Carleton College). Humans are very good at spotting patterns at all scales including subtle variations in foliation at the outcrop and thin section scale to patterned ground on Mars. However, we are not very good at quantifying these variations other than saying a rock is well-foliated or not foliated. In this session we will use the autocorrelation function in NIH-Image to quantify the shape-preferred orientation in foliated tonalities from British Columbia and to define the preferred orientation present in various patterned ground terrain on Mars. NIH-Image is quick and easy to use, is free, and runs on Mac and PC platforms.

L2B: A Primer on the Use of Focal Mechanism Solutions in Analysis of Active Structures (Vince Cronin, Baylor University). The goal is to teach student geologists (at a senior undergraduate level or above) what an earthquake focal-mechanism solution is, something about how it is derived by seismologists, and how to employ them to derive useful information about active structures. This is not a course for seismologists – needed is a general familiarity with plotting lines and planes on a stereonet, but a working knowledge of seismology or facility with higher mathematics is not required.

L2C: Evolution of Normal Fault Systems During Progressive Deformation and Sand Box Experiments on Thrust Belt Development (Robert Burger, Smith College, and Ron Harris, Brigham Young University). This activity is based on QuickTime movies and color digital photographs derived from sandbox experiments that produce normal faults in a variety of boundary conditions following experiments developed by Ken McClay. Students view specially edited movies to gain awareness of the evolution of normal faults systems. They then investigate the formation and evolution of a fault system for a particular structural setting by tracing and labeling individual faults on a set of photographs taken at regular intervals during an experiment. This activity helps students develop an awareness of fault initiation, propagation, rotation, and inactivation during progressive deformation. No description available for Harris' portion of demonstration.

L2D: Problem-Based Learning (PBL): What it is, a Demonstration, and a Discussion on How to Plan and Implement a PBL Project (Dave Mogk, Montana State University). Problem-based learning is an educational approach that organizes curriculum and instruction around carefully crafted "ill-structured" problems. Students gather and apply knowledge from multiple disciplines in their quest for solutions as they develop critical thinking, problem solving, and collaborative skills. This session will present the basic philosophy and guidelines of PBL, an example project will demonstrate a term-long project that integrates structural geology and metamorphic petrology towards an interpretation of the Archean basement of SW Montana, and a group discussion will explore additional opportunities to use PBL in structural geology courses.

L2E: Composite session on the use of analog materials, with the following 6 short presentations: