Radiometric Surveys Radiometric Surveys detect and map gamma rays, and can be performed on the ground, in the air, or in a borehole. Airborne gamma-ray spectrometry or radiometric surveying for mineral exploration measures the gamma-rays that are emitted from naturally occurring radioactive isotopes that are found in rocks and soils near the surface. The most abundant of … Read more
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Why Use Aeromagnetic Surveys? Aeromagnetic surveys are an efficient geophysical prospecting tool for many mineral and petroleum exploration companies and government agencies. A fixed-wing airplane or helicopter is extensively modified to be magnetically quiet and equipped with wingtip pods, a tail stinger, or a towed bird to house magnetometers for acquiring magnetic data. This type … Read more
In radio communications terminology, VLF means Very Low Frequency, typically about 15 to 25 kHz. VLF-EM is a geophysical survey technique that measures VLF signals from very powerful radio transmitters that induce electric currents in conductive bodies thousands of kilometres away. These powerful transmitters are located around the world, and are used primarily for military communication purposes with … Read more
Finding the Best Airborne Geophysical Survey Companies The best global geophysical survey companies will be able to plan and execute effective geophysical surveys in any area of the world. Successful airborne geophysical survey providers know how to safely acquire high quality geophysical data, which can be used to enhance exploration and engineering projects. Acquiring accurate … Read more
Facts About Electromagnetic Surveys Electromagnetic (EM) geophysical surveys are based on the propagation of electric currents and electromagnetic fields in the earth. EM surveys can be conducted as airborne, ground or borehole surveys, and is one of the most commonly used methods in mineral exploration. In EM surveys, an electric current is transmitted through the … Read more
Professional Geophysical Consultants Many companies in the mineral and petroleum exploration industries already know the value of using professional geophysical consultants. These consultants specialize in selecting, planning, executing, and controlling the quality of comprehensive airborne geophysical surveys which provide essential data for the exploration project. This data is used to create geophysical maps of specific … Read more
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 … Read more
Collecting Data With Airborne Surveys Airborne geophysical surveys are used to acquire a regional overview of the geology. Many mining and exploration companies utilize airborne surveys to acquire geophysical data over their project areas. Airborne surveys provide a cost and time effective means of acquiring high resolution geophysical data over large areas of interest. Airborne … Read more
What Is Gamma-Ray Spectrometry? Gamma ray spectrometry is the study of the energy spectra of gamma-ray sources, typically for the nuclear industry, astrophysics, and geochemical investigation. Most radioactive sources produce gamma rays of varying intensities and energies. When these gamma-ray emissions are detected and analyzed with a spectrometry system, a gamma-ray energy spectrum is produced. … Read more
Understanding the Benefits of Airborne Magnetic Surveys In order to understand the benefits of airborne magnetic surveys, it is important to realize the costs and time-consuming nature of mineral and petroleum exploration. Acquiring quality airborne magnetic data can help to drastically reduce these costs and times. These surveys make it possible to quickly gather detailed … Read more
