Microgravity Survey Applications
Mapping of variations in subsurface density
Geophysical surveys are used to map the three-dimensional density distribution of the subsurface. The gravity method is ideal for mapping variations in subsurface density, which can be caused by a variety of geological processes.
Voiding, cavities and solution features
The microgravity method can be used to detect and map voids, cavities and solution features within the subsurface. These features often occur in karst terrain and can range in size from small fractures to large caverns.
Cave, Dene and Swallow Hole Detection
Karst terrain is characterised by the presence of caves, dolines (sinkholes) and swallow holes. The microgravity method can be used to map these features, as well as their subsurface extent.
The microgravity method can be used in the assessment of the subsurface extent of historic mine-workings. This is particularly useful in areas where there is no surface evidence of mining activity.
Geological Mapping including near-surface fault detection
The microgravity method can be used for geological mapping at a variety of scales. This includes the mapping of near-surface fault zones, which can be achieved by analysing variations in subsurface density.