Showcasing our capabilities in conducting microgravity surveys

Microgravity surveys are extremely sensitive and require expert supervision and understanding to be carried out effectively. Different subsurface materials have different bulk densities. In microgravity surveying, areas of contrasting density are located by collecting surface measurements of the variation in the Earth’s gravitational field.

A gravity meter is a highly sensitive spring balance. When positioned above a dense material, it records the acceleration due to gravity (g) as relatively high (a positive gravity anomaly). When positioned above a low-density material (e.g., an air-filled cavity), the gravity meter records a relative gravity low (or negative gravity anomaly).

Microgravity surveying applications

  • Cavity detection (including bomb shelters, hidden tunnels or audits, old mine workings, sinkholes and karstic dissolution features)
  • Mineral exploration
  • Density determination
  • Grouting investigations
  • Shallow pipe and sewer detection

As part of RSK’s one-stop solution, we have the capability to undertake follow-up intrusive investigations using dynamic probe testing to verify the findings of a gravity survey.

Other geophysical surveys techniques

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RSK Geosciences is part of the RSK group of companies

The RSK group is a leading integrated environmental, engineering and technical services business offering bespoke end-to-end solutions to a variety of sectors. Headquartered in the UK but with an established presence throughout Europe, Africa, the Middle East, Asia and Australia, RSK helps organisations around the world achieve their business aspirations in a sustainable and efficient manner.