Induced Polarization

IP is a powerful surface geophysical method that measures the chargeability of subsurface materials—capturing their ability to store and release electrical charge. Conducted using electrode arrays, IP surveys record decaying voltage after current injection (time-domain) or use frequency variation for spectral IP, building a resistivity-chargeability profile for the subsurface.

Applications

• Mineral Exploration
• Detects disseminated sulfides and alteration halos.
• Key for targeting porphyry, VMS, and base-metal systems.
• Guides drilling with high-resolution anomalies.
• Geotechnical & Soil Assessment
• Differentiates clay-rich zones affecting stability and foundation design.
• Useful where resistivity may misinterpret conductive clays.
• Environmental & Hydrogeological Surveys
• Maps contaminant plumes and pollution zones by identifying soil chemical responses.
• Assesses soil-fluid interactions—like biodegradation—at grain-fluid interfaces.
• Helps delineate aquifer boundaries and clay barriers in groundwater modeling.

Why Choose Induced Polarization

• Provides enhanced detection of sulfide mineralization and subtle lithological changes.
• Non-destructive, field-scalable, and cost-effective.
• When combined with resistivity (ERT), it delivers a rich, dual-parameter subsurface model.

Considerations

• Fieldwork demands precise timing, signal averaging, and possibly high-power sources.
• Interpretation requires expertise to differentiate clays, contaminants, and ore-related signatures.
• Survey depth may be constrained by complex geology or overburden conductivity.



Partner with SLA Geophysics to integrate Induced Polarization (IP) into your exploration, engineering, or environmental programs. Our tailored surveys combine IP with ERT and other geophysical methods, delivering accurate, efficient, and environmentally responsible insights. Contact us for a free quote and let’s uncover what's beneath with clarity and confidence.