Do I need a licensed geophysical surveyor to perform airborne geophysical surveys? The answer is that a professional operator will have all licenses, certificates and inspections readily available for the client to view prior to signing a contract. Licenses protect the safety of all involved and are a necessary cost in exploration services.< Specialists in … Read more
How long do airborne geophysical surveys generally take? Is it something that can be done in a single day? A small property sized survey can be performed in a day; however, most surveys require several weeks. Large airborne geophysical surveys for major projects may take months of acquisition time. Specialists in Airborne Geophysical Surveys Terraquest … Read more
Airborne magnetic geophysical surveys or aeromagnetic surveys are one of the most commonly employed geophysical survey methods being practiced today. Aeromagnetic surveys are considered a primary and essential survey technology ]and are typically flown in conjunction with other survey technologies.An airborne magnetic survey is able to measure the earth’s magnetic fields from the air. Variations … Read more
In the past several decades, airborne magnetic surveys have become a common means of acquiring data required for mineral and hydrocarbon exploration. The information uncovered during a magnetic survey is often the first phase of an exploration program to detect valuable minable magnetic ores such as kimberlites, chrome, and magnetic iron ores, as well as … Read more
Even though airborne surveys are a relatively low cost and efficient method of exploration, each survey must be as economically viable as possible in the grassroots stage of exploration. Therefore it is extremely important that your airborne survey is thoroughly planned and executed according to the predetermined survey plan. Integral to the planning process are … Read more
Airborne geophysical surveys and magnetic data acquisition are common practices that benefit the mining industry and a wide range of exploration professionals. Airborne geophysics provides a broad overview of the geology of a particular area, as well as measure the fluctuating magnetic signatures found in the Earth’s crust that may be indicative of mineral concentrations. … Read more
Exploration geophysics is the science of acquiring data regarding the Earth’s properties using above ground survey methods. Electromagnetic surveys are used to assess the varying electric currents conducted between sulphide minerals and barren silicate minerals. Airborne electromagnetic surveys (AEM) offer a fast and cost effective means of acquiring data on electromagnetic currents. Through the use … Read more
Airborne Electromagnetic geophysical surveys measuring the electrical resistivity of the earth are conducted from the air using towed EM arrays or EM loops. Airborne EM typically use a transmitter that carries a current that varies in magnitude as a function of time to measure electromagnetic conductors. In Time domain EM systems, the current is turned … Read more
There are a variety of geophysical survey methods that are used both in mineral prospecting or hyrdrocarbon exploration. Using either ground or airborne geophysical survey techniques, geophysical companies employ the use of magnetic, radiometric, gravity and electromagnetic equipment to detect minerals or indicators of mineral occurrences. Airborne Magnetic Surveys The most commonly used geophysical survey … Read more
The advantages of airborne surveys include low data acquisition costs; widespread coverage; detailed coverage as required; high resolution; and in some cases, the ability to drill directly from the survey results. On the other hand, ground geophysics supports additional methods not possible in the air, including: And so, in reaching a brief conclusion, it can … Read more
