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Airborne Geophysical Surveys - A Range of Choices for Mineral Exploration

By John CurrieArticlesSeptember 18, 20200 comments

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 ...

Airborne Electromagnetic Surveys for Exploration

By John CurrieArticlesSeptember 18, 20200 comments

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 ...

EM-Power Your Exploration with Airborne Electromagnetic Surveys

By John CurrieArticlesSeptember 18, 20200 comments

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 ...

Planning an Airborne Geophysical Survey - What to Know

By John CurrieArticlesSeptember 18, 20200 comments

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 ...

Airborne Magnetic Surveys – It's All About the Details

By John CurrieArticlesSeptember 18, 20200 comments

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 ...

Is a Licensed Operator Required for Airborne Geophysical Surveys?

By FluxQ & ASeptember 18, 20200 comments

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 ...

How to Choose an Airborne Magnetic Survey Supplier

By John CurrieArticlesSeptember 18, 20200 comments

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 ...

Applying Regional or Detailed Airborne Magnetic Surveys

By John CurrieArticlesSeptember 18, 20200 comments

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 ...

How Long Does An Airborne Geophysical Survey Take?

By MarkQ & ASeptember 18, 20200 comments

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 ...

Principles of Airborne Magnetic Surveying for Exploration

By John CurrieArticlesSeptember 18, 20200 comments

An airborne magnetic survey is the predominant method of remotely collecting geophysical data using a specially modified aircraft outfitted with magnetometers to fly a grid pattern over a targeted area. Airborne magnetic surveys are an effective geological exploration technique to ...

Airborne Electromagnetic Surveys with Terraquest's Matrix VLF-EM

By John CurrieArticlesSeptember 18, 20200 comments

VLF-EM surveying is a geophysical technique using Very Low Frequency radio transmissions. The continuous, high power, low frequency electromagnetic transmission ranges from 3 kHz to 24 kHz. When the waves come in contact with a conductive material in the subsurface, they generate ...

Success Factors in Choosing an Airborne Geophysical Survey Company

By John CurrieArticlesSeptember 7, 20200 comments

A qualified geophysical company is capable of providing a wide range of geophysical surveying services, though typically specialize in either ground or airborne acquisition. The capabilities of a geophysical company are contingent upon their years of survey experience within the field ...

Deriving Exploration Value from Airborne Radiometric Surveys

By John CurrieArticlesSeptember 7, 20200 comments

In terms of conducting geophysical surveys, gamma spectrometry or airborne radiometric surveys can be employed as a means of detecting gamma rays or natural radioactive emanations. This detectable radiation comes from the decaying of some of the radioactive natural elements occurring ...

Overview of Airborne Magnetic Surveys and Capabilities

By John CurrieArticlesSeptember 7, 20200 comments

Exploration geophysics is used as a means of acquiring quality data to study geological variations within specific areas of the Earth's crust. The information gathered during a geophysical survey aids in the production of geophysical maps, which are utilized in the prospecting stage ...

Why Employ Airborne Electromagnetic Surveys in Exploration?

By John CurrieArticlesSeptember 7, 20200 comments

Electromagnetic surveys are a type of geophysical exploration used to detect metallic and non-metallic minerals. The mining industry uses this surveying method as an economical means of prospecting to acquire useful data for an exploration project.   While electromagnetic surveys ...

What Airborne Geophysical Surveys Mean for the Lay-Person

By PixieSeptember 4, 20200 comments

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 ...

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