Exercise 4

Download Williams and Kuniansky (2016) and review Figure 13 of that report. The acoustic televiewer image from 2,100 to 2,200 feet (640 to 670 m) shows solution openings formed along bedding planes and in discrete zones near the base of the Oldsmar Formation of the Lower Floridan aquifer in well GA-GLY9, Brunswick, Georgia, USA. Next, download Wacker and others (2014) plate 1 that shows visual borehole logs of the porosity in the upper Biscayne Aquifer.

  1. What do you notice about the different dissolved openings?
  2. How do the older Floridan aquifer openings compare to the younger Biscayne Aquifer?
  3. How does this compare to the even older Paleozoic rock (541 to 252 million years ago) images of the telogenetic karst aquifer shown in Figure 17 of this book?

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Introduction to Karst Aquifers Copyright © 2022 by Eve L. Kuniansky, Charles J. Taylor, and Frederick Paillet. All Rights Reserved.