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
John Currie
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
Geophysical Survey Demand Driving New Technology Development Geophysical survey companies are experiencing significant growth due to increases in the number of mineral and oil exploration projects worldwide. Declines in reserves are directly tied to an increase in funding for exploration activities. Geophysical surveys are an essential part of these exploration processes and are imperative to … Read more
Geophysical companies conduct efficient geophysical explorations for governments, individuals, mapping professionals, mining companies and others who who depend upon geoscientific data. Some of the applications are indicated below: Efficient geophysical exploration surveys employ the use of precise airborne geophysical data acquisition systems to ensure that the data obtained during a survey is highly precise and … Read more
What is Geophysics? Geophysics uses high tech, sensitive instrumentation to detect and analyze various physical properties of the Earth, which are linked to its geology. Geophysical surveys are the collection and mapping of geophysical data. This data can prove invaluable to mining companies, oil companies and other companies as it helps to provide a means … Read more
Geophysical exploration is a means of sourcing out high concentrations of various minerals and commodities under the Earth’s surface by employing surveying methods, such as electromagnetic surveys and magnetic surveys. Geophysical exploration can be conducted on the ground or by air and can detect a variety of different magnetic mineable ores such as kimberlites and … Read more
Quality, experienced Geophysicists are integral to overseeing the proper execution of all stages of the the acquisition process. Starting with initial survey design and an extensive review of the client’s survey targets and goals, Terraquest incorporates an experienced Geophysicist from the start of the planning process to provide input into extensive survey planning including, There … Read more
The Demand for Airborne Geophysical Surveys Greater global demand for minerals and hyrdocarbons is leading to an increased demand for geophysical surveying. Airborne geophysical surveying, in particular magnetics, electromagnetics, and radiometrics, have become the leading techniques to initiate the mineral exploration process and gravity and magnetics are used in hydrocarbon applications. Airborne survey data can … Read more
