Introduction

Fugro Airborne Surveys has performed airborne gamma-ray spectrometry (AGS or radiometrics) surveys for over 40 years, throughout the world. In the last 5 years alone, Fugro Airborne Surveys has flown over 1 million line kilometres of airborne gamma-ray spectrometer surveys.

Applications

Airborne gamma-ray spectrometry is an effective geological mapping tool in many different environments and has been applied to mineral, environmental, geothermal, hydrocarbon and even water investigations. The following are some of the most common applications for airborne gamma-ray spectrometry surveys:

• Mineral exploration: gold, mineral sands, uranium, rare earth elements;
• Geothermal exploration: potassic alteration;
• Hydrocarbon exploration: potassic/uranium alteration;
• Geological mapping: mineral, engineering and water exploration applications, paleodrainage systems;
• Contamination mapping and detection: military and industrial waste (eg. ¹³⁷Cs and ⁶⁰Co);
• Emergency response: fallout, nuclear contamination;
• Baseline surveys: for mining, nuclear reactor and industrial sites.