Date of Award
Master of Science
The upper-Claiborne confining unit overlies the Memphis aquifer in Shelby County, Tennessee. Hydrogeologic windows are locations where clay intervals are thin or absent within the confining unit, resulting in localized vertical recharge. Previous work has not been geostatistically focused. In this study, 430 borehole geophysical logs were analyzed. The objectives were to: 1) capture and analyze exisiting well log data in a geodatabase 2) utilize geostatisitical modeling at a variety of scales 3) integrate well log data with historic water-table elevation trends and 4) produce multi scaled maps that illustrate hydrostratigraphic trends in terms of inter-aquifer communication. Geostatisitical ordinary kriging and deterministic inverse distance weighting were undertaken. The series of isopach maps suggest the couth-central and southestern areas of Shelby County proximate the wellfields of Sheahan and Lichterman are in direct hydrologic communication with the Shallow aquifer. A multi-scale geostatistical approach contributed further understanding on varying lithology in the county.
dissertation or thesis originally submitted to the local University of Memphis Electronic Theses & dissertation (ETD) Repository.
Murphy, Andrew Barnett, "A Geospatial Investigation of the Potential for Inter-Aquifer Communication in Shelby County, Tennessee: A Multi-Scale Spatial Dependency Model" (2017). Electronic Theses and Dissertations. 1771.