Buried ferrous metal has been a traditional target of geophysical surveys because of the needs of the construction and environmental fields.
Detection of electromagnetic and magnetic fields is one of the oldest and most robust methods in use today. Coupled with digital electronics and computer processing algorithms both electromagnetic (EM) and magnetic methods have become easier to apply and gained increasingly widespread use. Non-ferrous metal identification has been made possible more recently using time domain measurements of an EM field. Specific instrument construction and operational protocols, along with field technique, data collection protocol, and post collection processing are the variables that determine survey results.
Delta Geophysics has a clear understanding of the instrument capabilities, field techniques, processing alternatives, and the characteristics of potential field data to provide you with top quality surveys and the ability to recognize when things may not be as they seem.
EM and magnetic methods are used the detection of highly conductive metallic objects such as buried ordnance, tanks, pipelines, utilities, drums, reinforced foundations and other metal components of buried structures.
Specific applications include locating abandoned and buried monitoring or water wells, drum trenches, determining the limits of buried metal-containing dumps, locating and mapping archaeological sites, and identifying unmarked graves under specific circumstances.
Delta Geophysics provides carefully executed state-of-the art survey results. In most circumstances our surveys can be collected concurrently with GPS positioning to provide base maps with sub-meter accuracy that allow the identification of anomaly locations long after field markings have disappeared. Let Delta apply their years of potential field measurement experience to provide you with the extra level of knowledge that will help make your geotechnical and environmental decisions today hold up tomorrow.