Geoelectrical imaging

While VES yield information is related to individual points, 2-D resistivity imaging yields more detailed geological information, such as  thickness of overburden and lateral variation of resistivity. This technique provides true resistivity sections to a depth of approx. 100m. Water-filled layers and structures will appear as conductive zones. This method has proven cost-effective in data gathering and interpretation, and in providing increased understanding of sub-surface features. For reliable depth information the electrical imaging method is less appropriate, but the combination with VES leads to satisfying results.