Passive seismic method uses vibrations generated by waves crashing on distant coasts as well as passing traffic to characterize the subsurface. For Quaternary studies, sounding with PS has been demonstrated as a method for quickly mapping bedrock topography in a variety of terrains and bedrock lithologies. We have a Tromino device that we would like to use to test and supplement a draft bedrock topography map for the lower Wabash Valley and surroundings. I envision a project suitable for a Senior Thesis/Independent Study that could involve both theoretical and practical aspects of the method. A two-semester project would likely be best, although a particular well-prepared and motivated student might be able to do it in one. The project would involve 5-10 days of fieldwork, depending in part on the student’s level of interest. The product would include a report and map that would be presented at the North-Central GSA meeting in Champaign 2016. The project could even be a foray into Master’s-level research that could begin the following summer. Seed funding is available, but we would likely want to search for more.

Advisers: Andrew Phillips (ISGS, aphillps@illinois.edu), and Michael Stewart (Stewart1@illinois.edu)