Date of Award
Master of Science
In this study, the source of historical chloride anomalies in the Mississippi River Valley alluvial aquifer from southeast Arkansas is investigated using spatial statistical and geochemical techniques. The spatial statistical and geochemical techniques are employed to determine whether the source of the saline groundwater is due to evaporative processes in the soil column, injection of saline fluids from depth, or infiltration from rivers. Spatial statistical analyses show chloride anomalies in the alluvial aquifer are more closely related to tectonic features associated with the injection of saline fluids from depth than evaporative concentration of soil waters that may have recharged groundwater. Geochemical data and some hydrologic tracers independently suggest anomlaies are from the injection of saline fluids from depth, likely from the Smackover and Lower Wilcox formations in southern Arkansas. However, stable isotope data suggest evaporative processes further exacerbate the salinity problem.
dissertation or thesis originally submitted to the local University of Memphis Electronic Theses & dissertation (ETD) Repository.
Paul, Justin Michael, "The Source of Saline Groundwater in the Mississippi River Valley Alluvial Aquifer in Southeast Arkansas" (2015). Electronic Theses and Dissertations. 1276.