McKee’s study (1982) involved digging pits to
examine sediments just below the dune surface in
an attempt to consider the shallow internal structures
of a variety of dunes. However, only the
development of ground penetrating radar (GPR)
has provided the opportunity to examine sedimentary
structures tens of meters below the surface.
Bristow and co-workers have made considerable
use of dunes in our area for GPR studies (Bristow
et al. 2000, 2005, 2007). At the Warsaw site, they
combined GPR information about the dip of
foreset beds with OSL dates and have suggested
that the dune here has migrated its full width
towards the east in the past 5000 years (Fig. 6).
Work on Natab East and Station Dune also
indicated lateral migration, although not always