Ground and Borehole Geophysical Surveying

Aurora Geosciences offers a wide variety of ground and borehole geophysical exploration methods:

Magnetic & Gravity Surveys

• Ground magnetic & gradiometer surveys
• Ground Gravity surveys (target, property and regional) using Scintrex CG-6 gravimeters

Electromagnetic Surveys (EM)

• Time Domain EM (TDEM) (deep conductivity)
• Frequency Domain EM ( HLEM, VLF) (shallow structure & mapping
• ELF EM (deep passive EM which is a cost-effective alternative to MT/CSAMT)

Electrical / Resistivity Surveys

• Capacitively Coupled Resistivity (CCR)
  • ARRt (Aurora Rapid Reactance Tomography)
  • OhmMapper
• ERT (Wenner, Schlumberger, Dipole–dipole)
• Borehole resistivity

Induced Polarization (IP) / Resistivity Surveys

• 2D & 3D IP/Resistivity
• Gradient (dipole–dipole & pole–dipole arrays)
• Spectral IP parameter extraction
• Downhole IP

GPR Surveys

• Ground Penetrating Radar (permafrost & overburden)

Borehole Logging

• Gamma, magnetic susceptibility, resistivity, IP, EM, temperature
• Downhole structural & lithological interpretation from OTV and ATV

Bathymetry & Hydrographic Surveys

• Lake depth determination (Lowrance / Airmar sonar)
• Sub-bottom profiling (EdgeTech 424)