Haagsma, Autumn Joy2014-01-172014-01-172013-10https://hdl.handle.net/11299/162337University of Minnesota M.S. thesis. October 2013. Major: Geological Sciences. Advisor: Justin Revenaugh. 1 computer file (PDF); vi,40 pages.East River Flats, a city park along the Mississippi River, was analyzed using Geometrics SmartSeis seismograph and 16 geophones. Refraction calculations and models were done using 1D and 2D time-term inversion methods. The results yielded a 3 layer model which consisted of a low velocity top soil, water saturated sand and gravel, and highly fractured Platteville formation limestone. en-USThesis or Dissertation