High Definition-Airborne Gravity Gradiometry Technology

Gedex delivers immense value by reducing risk of exploration, fast-tracking best prospects and ultimately accelerating discovery success rates by providing mass and density information at a quality that no other geophysical system can. We can transform resource discovery and development by illuminating previously undetectable economic deposits. Our technology assists in detecting and defining important subsurface structures that, in combination with existing imaging techniques, create substantial value through costs savings and discoveries.

The Gedex high definition airborne gravity gradiometry data (HD-AGG™) is the most significant new technology capable of transforming resource discovery to be developed in over twenty years. The HD-AGG™ system measures minute changes in the strength and direction of the Earth’s gravity field, to performance levels better than 1Eotvos (E)/√Hz, from a fixed wing aircraft.

The cost effective imaging derived from this data maps changes in the subsurface geology, ranging from the near surface features to depths in the orders of kilometers. This new exploration data can be used either alone or quantitatively integrated with other geophysical imaging technologies (seismic, electromagnetics, magnetics) as well as integrated with legacy data to detect buried resources that current generations of technology cannot effectively image. Integration with HD-AGG™ data also improves other technologies, enabling a new generation of risk mitigation best practices to evolve. As a result, Gedex clients can rely on faster discoveries with lower project time, cost and risk.

The importance of 1 E/Hz

Our technology goal, defined as 1E/√Hz, is of critical importance for the HD-AGG™ system to accurately map the subsurface variations in geology. This goal defines both the instantaneous resolution of the instrument at 1 Eotvos (E) and just as importantly, its speed √Hz (per square root Hertz (cycles per second)). The instantaneous accuracy determines the sensitivity of the system to the changes in the subsurface geology, as this number gets smaller the geological content or richness of the data increases.

The speed of the system is also important as the faster the system samples the higher the resulting spatial sampling on the ground which creates a higher resolution image. At 1E/√Hz the Gedex HD-AGG™ is an order of magnitude improvement over the current best gravity gradiometry technology available today.