MaxMin & VLF-EM Method
Purpose: MaxMin and VLF-EM (Very Low Frequency Electromagnetics) are electromagnetic methods widely used in mineral exploration and environmental studies. These methods are effective for detecting conductive targets and geological structures in varied terrains, including areas with dense vegetation.
Applications:
Mineral Exploration: MaxMin’s wide frequency range (110 Hz to 56 kHz) and adaptable coil separations (10m to 250m) allow it to locate conductive mineral deposits and assess subsurface variations.
Structural and Environmental Mapping: VLF-EM is sensitive to conductive anomalies associated with faults, fractures, and other structural features, making it useful for mapping groundwater and geotechnical features.
Technical Process: MaxMin surveys use transmitter and receiver coils at set distances to detect variations in conductivity. Accurate positioning with Trimble R12i systems ensures data quality, even in rugged or overgrown areas. Data processing corrects for spacing and alignment, creating detailed maps of conductivity anomalies.
Key Uses: MaxMin and VLF-EM provide versatile and detailed subsurface information, making them essential for locating mineral targets, mapping faults, and exploring conductive features in challenging environments.
- MaxMin is a geophysical method that reads frequencies as low as 110 Hz to 56k Hz. Intercoil separations can range from 10m/12.5m to 250m and larger
- Trimble R12i rover / R12 base with 35W receiver record the transmitter and receiver locations so that post processing can correct for spacing errors, especially through bush and with uncut survey lines.
