The geology of Frederick County, Virginia is known mostly from surface mapping. Based
on this work are interpretations ofthe subsurface geology including cross sections which have
been constrained by the surface geology and by the method of area balancing based upon
palinspastic reconstruction. With the intent to further constrain these cross sections. gravity
measurements were made at 422 sites in Frederick County. Then, gravity anomalies were
compared with theoretical gravity profiles calculated from two dimensional models of density
distribution based upon the cross sections.
Using the cross section geometry and densities published for the known and inferred rock
units, the theoretical gravity profiles did not compare favorably with corresponding Bouguer
gravity profiles. However, by modifying the geometry of the model units and adjusting the
model unit densities, a reasonable fit between theoretical and Bouguer gravity profiles was
obtained. Although the geometrical modifications adhered to the structural style, no attempt
was made to area balance these modifications within the model.
next to an author's name indicates that all files or directories associated with their ETD are accessible from the Virginia Tech campus network only.
![[VT]](http://scholar.lib.vt.edu/images/ETD-db/restricted.gif)
