This project examined the surface geology of the primary floodplain in Harkers Run, located in Oxford, OH. The primary focus for this project was to determine and map the surface and subsurface geology of Harkers Run. For this study, a team of students in Geoenvironmental Field Methods (GLG 311VA) used topographic base maps and GPS devices to mark contacts between geologic units. The students delineated surficial deposits and bedrock exposure points within the study area based on landscape topography and outcrops. GPS data was then uploaded to Google Earth and overlaid with the digitized field map made in Adobe Illustrator. The study area was divided into three distinct geologic units: modern Qa (Quaternary Alluvium), glacially deposited Qt (Quaternary Till), and OLS (Ordovician Limestone & Shale) bedrock. The study area was initially part of a shallow marine basin during Ordovician times (460-440 Ma), followed by multiple sequences of glacial advance and retreat during the Pleistocene (26-24 Ka). Modern floodplains have been primarily shaped through fluvial channel and overbank deposition, slope erosion, and agricultural processes. Knowing the geologic history of an area provides geoscientists with vital information which can assist in future study. For the students involved, this research provided field experience using professional tools and methods that are consistent within the geoscience industry, preparing them for future careers and studies.
Author(s): Ryan Sawyer, Environmental Earth Science and Sustainability Major
Connor Woodward, Environmental Earth Science Major
Conor Cahill, Geology Major
Advisor(s): Brian Currie, Department of Geology & Environmental Earth Science
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