Examples of Basil Applied to Geological Problems
    The examples listed below illustrate a number of geological problems to which basil has been successfully applied.  All of these problems are two-dimensional.  In some cases the plane-strain assumption is used.  Otherwise the 2-D layer is treated as a thin viscous sheet (similar to plane-stress, but including the effect of buoyancy).  The selection of diagrams provides a sample of the kind of graph that may be produced by the sybil program, using a menu-driven graphical user interface that permits great flexibility.