Applications of the Landmark Computer Workstation
                    to the Study of Environmental Geology

A. Martinez, J. Hopkins, H. Feldman, A. Feltz, T. Carr, R. Black, N. Anderson


Many projects underway at Kansas involve application of geophysical methods 
to a variety of environmental questions and problems associated with salt 
dissolution.  The Permian salts are present in the shallow subsurface of the 
central and southern parts of Kansas.  Environmental problems differ in scale 
from large-scale salt water contamination of entire aquifers, to localized 
dissolution collapse features.  Causation is a combination of natural 
processes and anthropogenic activities (e.g., irrigation and oil field 
activities).

Various geophysical methods are used to image the geology of the shallow 
subsurface (0 - 100m).  These methods include high-resolution seismic 
reflection (2-d and 3-d), vertical seismic profiling, and ground penetrating 
radar, and are used in conjunction with the Landmark interpretation system.  
The Landmark system allows a more efficient, detailed, and integrated study 
to be performed at these sites than with conventional environmental study 
methods.  Examples from throughout Kansas are used to illustrate the utility 
of using the computer workstation to perform integrated studies of 
environmental problems.