Seismic methods
The geostack team has unique expertise in seismic applied to near-surface settings. With an acquisition system designed specifically by its technical team and inspired by university research, we have participated in a large number of characterization projects at different scales for industrial, academic and government partners. We are equipped for projects of all sizes and are very agile in adapting to your needs and meeting your objectives.

Rapid deployment

Deployment of three-component towed geophones
Can be used with an accelerated mass or a vibrating source
High productivity of up to 3 km per day on drivable roads, for fast and efficient ground coverage.
Summer and winter operation
Used for seismic reflection and MASW2D surveys
Flexible deployment
Use of regular or accelerated sledgehammer, or dynamite as needed
Deployment of autonomous wireless measuring stations for carrying out seismic refraction, MASW and seismic reflection surveys.
Deployment of up to 156 three-component wireless stations for high-resolution combined seismic
Operation in both summer and winter, in all types of environments, including remote locations, with low environmental impact. Versatile services, adaptable to various contexts.

Seismic refraction
Ideal for sites with unconsolidated deposits <20m thick
Allows bedrock surface mapping
Provides clues about the presence of fluid and the quality of the rock
Layer or tomography interpretation of Vp velocities

Seismic reflection
Ideal for depths 10 - 100 m
Often used for bedrock mapping
Allows mapping of Vs
Allows to differentiate the types of unconsolidated deposits (ex: sand vs clay)

MASW-1D
Provides a vertical profile of Vs for the site investigated
Deployment possible in urban or remote areas
Possibility of coupling with another seismic method to increase control over interpretation

MASW - 2D
Ideal for depths 0 – 30m
Allows mapping of stratigraphic units
Can be produced at the same time as seismic reflection
Useful for hydrogeological and geotechnical characterization

Vertical seismic profile ( downhole )
Deployment in an existing borehole
Allows high vertical resolution of seismic velocities P and S
Use of a three-component sensor for better identification of propagation modes
