Cost and Time-effective Benefits of Airborne Geophysical Surveys

The Need for Cost-Effective Airborne Geophysical Surveys

Geophysical surveying is an important part of the mineral exploration process, and is thus an extremely useful methodology for mineral exploration companies. Airborne and ground geophysical surveys are essential to identify and locate different mineral commodities in a specific area. Governmental agencies also use geophysical surveys to identify and promote potential zones of interest within their territory, which may contain valuable mineral deposits, hydrocarbons and even groundwater.
Mineral exploration companies operate on exploration budgets, so need to utilize the most cost efficient methods of exploration.  Airborne and ground geophysical surveys are exactly that, providing both cost and time benefits for the exploration project by utilizing their valuable datasets.  

Airborne Geophysical Surveys

Airborne geophysical surveys can be coordinated and executed to quickly and effectively measure geophysical properties of the subsurface.  This data can then be interpreted to assist with determining geological structures within the project area, helping to identify areas of economic interest.  Airborne geophysical survey technologies that are used on exploration projects include:
  • Magnetics - measures magnetic susceptibility and remanence
  • Radiometrics - measures natural radiation and can determine locations of minerals containing trace quantities of K, U and Th.
  • Gravity - measures density
  • Electromagnetics - measures electrical conductivity, resistivity, and inductance contrasts  
Airborne geophysical surveys offers the advantage of being able to safely and efficiently survey remote and rugged terrains.  Ground-based exploration methods are simply unable to compete economically with airborne geophysical survey methods in terms of the large areas that can be quickly covered while acquiring geophysical data.
Mineral exploration companies typically survey their entire properties using airborne geophysics to highlight areas where they need to focus more expensive ground methods such as geochemical studies, ground geophysics, and drilling.  Also of equal importance, the airborne geophysical survey data can tell them where they don't need to spend on further ground studies.    
Specialists in Airborne Geophysical Surveys
Terraquest was established in 1984 and since then, our dedicated team has flown over 1,500 airborne geophysical surveys using both fixed wing and helicopter platforms.  Our professional crews provide significant experience having carried out airborne magnetic, gravity, gamma ray spectrometry, and electromagnetics on five continents.  Our quality data sets have been utilized in the exploration for base and precious metals, kimberlite, hydrocarbons, uranium, rare earth minerals and water. The company has performed exemplary surveys for both small and large exploration groups as well as many government agencies.  References can be provided upon request.    Visit
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