Environmental Geophysics Associates
It is primarily used to identify, and map caves, sinkholes conduits, faults, fractures, subsidence; groundwater contamination by brine or other polluters; it is also used for location of buried oil and gas wells; geophysical methods also help locate seepages beneath dams, rivers.
http://www.pallasweb.com/blog/exploring-caves-sinkholes-around-austin-and-barton-springs
Exploring the Underground Caves and Sinkholes Around Austin and Barton Springs - Pallasart Web... Local geologist Dr. Saribudak is a modern-day Indian Jones. He can be found spelunking through Austin’s many caves, and is an expert on all things found under the ground.
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