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Salt Water Intrusion:
An Introduction and Overview
Dr. Clark Alexander
Skidaway Institute of Oceanography
University of Georgia
Groundwater Resources
Aquifers and Aquitards/Aquicludes
Unconfined & Confined Aquifers
Cone of Depression
Cone of Depression
Surficial
Aquifer
Floridan Aquifer System
(USGS, 2001)
(Krause and Randolph, 1989)
1880 Conditions
1986 Conditions
(Krause and Randolph, 1989)
(Krause and Randolph, 1989)
Vertical Saltwater Intrusion
(USGS, 2001)
Brunswick
(Krause and Randolph, 1989)
Lateral Saltwater Intrusion
(USGS, 2001)
Hilton Head
(USGS, Payne, 2010)
(A) Modern tidal creek
Post-Miocene
Mioceneaquitard
Seabed
Calibogue Sound
(B) Infilled paleochannel
Mioceneaquitard
Savannah River paleochannel
Seabed
Post-Miocene
(USGS, Falls et al, 2005)
Other Paleochannels
Quaternarypaleochannel
Upper Floridan Aquifer
Pliocene
Sea level
Drill site
~9,000 feet~10 feet
Miocene AquitardMiocene Aquitard
Seabed
Savannah Harbor Expansion Project
Savannah Harbor Expansion Project
![Shallow Water Estuaries: The Minho Case Studysalt wedge configuration [13,14]. Associated with this salt wedge, salt intrusion can spread as far as 17 km from the mouth during the](https://img.pdfslide.net/doc/110x75/5f3cfba3826d9b49471d8946/shallow-water-estuaries-the-minho-case-study-salt-wedge-coniguration-1314.jpg)
