Near & Surface
Geophysical
METHODS
Scientific Toolkit
Geophysical
Methodologies
Seismic
MASW · P-Wave Refraction · VS30
Principle
Acoustic impedance contrasts at lithological boundaries
Reveals
Layering, site competence, load-bearing parameters
<
ERI/IP
Electrical Resistivity · Induced Polarisation
Principle
Ionic movement and charge storage in pore fluids
Reveals
Lithology, moisture, leachate, sulfide mineralisation
Magnetics
Ground Magnetic Survey
Principle
Naturally occurring magnetic property variations
Reveals
Rock types, buried metallic objects, structural features
EM/FDEM
Frequency-Domain Electromagnetics
Principle
Subsurface eddy current induction
Reveals
Highly conductive bodies, faults, contamination plumes
GPR
Ground Penetrating Radar
Principle
High-frequency radar reflections from dielectric contrasts
Reveals
Utilities, voids, concrete delamination, buried structures
Concrete Structural NDT
Corrosion · Strength · Voids · Rebar
Principle
Non Destructive Concrete Testiting and Scanning
Reveals
Map defects, rebar and assess structural integrity of slabs
Our Methodology
Phased Approach to
Site Characterisation
A systematic four-phase framework that moves from broad reconnaissance to quantitative analysis — delivering maximum insight with minimum site disruption.
01
Phase One
Reconnaissance
- Rapid, broad screening via EM/FDEM
- Large spatial coverage in minimal time
- Anomaly maps guiding focused investigation
- Identify target zones rapidly
02
Phase Two
Comprehensive Imaging
- Tool optimisation per target
- Resistivity, seismic, magnetics
- Depth-constrained 2D/3D models
- Delineate structure and contamination
03
Phase Three
Targeted Investigation
- pXRF on-site geochemical analysis
- Quantitative soil assessment
- Heavy metal and contaminant ID
- Classification of suspect zones
04
Phase Four
Integrated Reporting
- Geophysics + geochemistry + geotech
- Clear conceptual site model
- Drilling and remediation recommendations
- Engineering design guidance