Geophysical Prospection
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Geophysical prospection is an advanced technique for subsurface exploration, enabling detailed information on its composition, structure, and physical properties without the need for excavations or direct drilling.
The hydrogeology sector has expertise in passive seismic techniques and electromagnetic surveys:
- Passive Seismic Techniques: This method uses natural environmental noise, generated by sources such as traffic, wind, or thunderstorms, to analyze subsurface composition via specialized three-dimensional geophones. These tools can quickly determine the depth of rock layers and the thickness of sedimentary strata, providing crucial information for construction projects, such as estimating excavation volumes.
- Electromagnetic Surveys: These detect variations in soil properties caused by objects or deposits with differing conductivity. By generating and measuring electromagnetic fields, this method produces detailed maps of the soil’s apparent conductivity.