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Applied

Geophysical

METHODS

Geophysical
Methodologies

Seismic
MASW · P-Wave Refraction · VS30
Principle
Acoustic impedance contrasts at lithological boundaries
Reveals
Layering, site competence, load-bearing parameters
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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
FDEM/TEM
Frequency & Time 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
Magnetotellurics
Mineralisation · Lithology · Crustal Structures
Principle
Resistivity profiling of deep structures
Reveals
Detect subsurface mineral deposits, alteration zones & geological structures

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

Areas We
Serve in Tasmania

Spaulding Geophysics provides comprehensive geophysical services across Tasmania, from Hobart and Launceston to regional centres, coastal towns, and remote communities statewide.

South & Greater Hobart
  • Hobart
  • Kingston
  • Margate
  • Kettering
  • Bruny Island
  • New Norfolk
  • Sorell
  • Dodges Ferry
North & Launceston
  • Launceston
  • George Town
  • Longford
  • Perth
  • Hadspen
  • Westbury
  • Deloraine
  • Bridport
Northwest Coast
  • Devonport
  • Burnie
  • Ulverstone
  • Wynyard
  • Penguin
  • Smithton
  • Latrobe
  • Port Sorell
East Coast & Midlands
  • Bicheno
  • St Helens
  • Scottsdale
  • Swansea
  • Campbell Town
  • Ross
  • Queenstown
  • Huonville

Spaulding Geophysics delivers geophysical services across all of Tasmania — including Hobart, Launceston, Devonport, Burnie, Ulverstone, George Town, Longford, Deloraine, Smithton, Wynyard, Bicheno, St Helens, Scottsdale, Queenstown, Huonville, Kingston, Kettering, Bruny Island and surrounding communities. Remote and regional sites welcomed.