Lineaments in groundwater exploration: a review of applications and limitations

Excerpt

The mapping of linear features on various types of maps or remotely sensed data is one of the keys to understanding groundwater occurrence, especially in areas with igneous and metamorphic rocks of poor primary porosity, commonly referred to as hard rock terrain. Lineaments mapped with remote-sensing data have therefore been the focus for targeting well sites for many decades, albeit with varying success. Sometimes lineament mapping, regardless of geologic environment, is believed to be the panacea for successful groundwater exploration. Numerous papers and reports have been produced showing lineaments as the backbone of the investigations, with more or less impressive results. The mapping and interpretation of lineaments needs to be done with care and with a proper understanding of its applications and limitations. This is not always the case. Here, an overview of lineaments in groundwater exploration is presented, with some examples of both successful approaches and potential pitfalls. …