Electronic Theses and Dissertations

Identifier

6092

Date

2017

Document Type

Thesis

Degree Name

Master of Science

Major

Earth Sciences

Concentration

Geography

Committee Chair

Youngsang Kwon

Committee Member

Larsen Daniel

Committee Member

Lumsden David

Committee Member

Arleen Hill

Abstract

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.

Comments

Data is provided by the student.

Library Comment

Dissertation or thesis originally submitted to the local University of Memphis Electronic Theses & dissertation (ETD) Repository.

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