Seismic Refraction Tomography

At Retro Geoenergy, we offer state-of-the-art Seismic Refraction Tomography (SRT) services — a proven geophysical method used to determine subsurface velocity structures by analyzing refracted seismic waves.

SRT is widely applied in geotechnical, environmental, hydrogeological, and engineering projects, providing valuable insights into subsurface layering, rock quality, and groundwater zones.

By combining high-quality field data acquisition with advanced tomographic inversion techniques, our SRT surveys deliver accurate 2D and 3D models of the subsurface, ensuring reliable solutions for exploration, construction, and environmental studies.

Engineering & Geotechnical Investigations
  • Determination of depth to bedrock, weathered/fractured zones, and soil overburden thickness.
  • Subsurface profiling for foundations, tunnels, dams, bridges, and road projects.
  • Evaluation of rippability, rock competence, and elastic properties for construction.

Hydrogeological Studies
  • Identification of aquifer boundaries, groundwater zones, and fracture networks.
  • Mapping of weathered zones and saturated layers for water exploration.
  • Integration with ERT for improved groundwater assessment.

Environmental & Hazard Assessments
  • Detection of landslide-prone areas and slope stability conditions.
  • Mapping of subsurface cavities, weak zones, and fault/fracture zones.
  • Supporting environmental studies with non-invasive subsurface characterization.

Mining & Resource Exploration
  • Delineation of overburden and ore body geometry.
  • Evaluation of structural features affecting mineral deposits.
  • Pre-feasibility assessments for open-pit and underground mines.

• Deployment of seismic geophones, hammer/weight drop, or explosive sources.

• Data acquisition using multi-channel seismographs.

• Processing with advanced tomographic inversion software for 2D/3D velocity models.

• Integration with Seismic Reflection, ERT, and MASW for comprehensive subsurface imaging.

• 2D and 3D seismic velocity models.

• Depth-to-bedrock and subsurface layering maps.

• Engineering parameters such as Vp/Vs ratios, elastic modulus, and rippability indices.

• Comprehensive geotechnical and geological interpretation reports.

✅ Proven expertise in executing SRT surveys for diverse projects across India and abroad.

✅ Use of modern instruments and inversion techniques for high-resolution results.

✅ Strong integration with other geophysical methods for multi-disciplinary solutions.

✅ Commitment to delivering accurate, cost-effective, and client-focused services.


🔹 With Retro Geoenergy’s Seismic Refraction Tomography (SRT) services, clients gain a clear, high-resolution understanding of the subsurface, enabling better decision-making in exploration, engineering design, and environmental management.