Sampling and excavating proves timely and costly. In Archaeology—above all other pursuits for which GPR is used, one must be critical of instrument data and take into account a number of conditions to dig for artifacts and bones. Secondly, without the articulation of shapes in underground data, one can’t be sure what exactly they may find when they dig. This is where Ground Penetrating Radar does the work for an archaeologist who needs solid, interpretable data that can be presented in a variety of ways to ensure for cultivated perspective.
Various other methods in archaeological survey have their limitations:
While resistivity meters are lightweight and cheap, often they do not determine depth or create vertical profiles as accurately as other techniques. Deeper investigations require longer cables, and laying the cable properly and maintaining clean, interference-free leads can be time-consuming. Often, results are ambiguous with coarse resolutions. Lastly, the presence of pipes, cables and other structures may further complicate their interpretation.
Magnetometers respond to iron and steel levels in materials and largely depend on objects’ mass for sufficient detection. Unfortunately, high concentrations of magnetic materials may disrupt the detection of subtler anomalies that may be of more interest to the archaeologist. GPR does not have this issue.
Electromagnetic conductivity instruments also respond strongly to metal, which of course means that survey focusing on finding nonmetallic materials may be thrown off or interrupted.
The scope of archaeology projects will determine which US Radar GPR system will fit your needs. Contact Us for specific recommendations.