Vector Induced Polarization / Resistivity with Magneto-tellurics
A 1km grid pattern of stations covering an area of 25km2 with 25 gDAS24 receivers, providing;
• simultaneous acquisition of 25 Tensor Magneto-Telluric soundings at 1km-spaced stations, with dedicated and mutual remote references for a frequency range of 0.001 through 10,000Hz for 1-, 2- and 3-D interpretation of deep resistivity structure, and;
• subsequent simultaneous acquisition of very long period Induced Polarization parameters, circumventing inductive electromagnetic coupling effects and increasing target-over- background responses, incorporating telluric cancelation and monitoring of transmitted current variations.
High resolution Induced Polarization / Resistivity tomography with MT profiling
A continuous array of 200m electric-field dipoles with interspersed magnetometers for MT determinations along two 10km survey lines with 50 gDAS24 receivers simultaneously acquiring high resolution step-through (3D tomographic) Pole-Dipole IP and Resistivity data to large (>25) n- levels incorporating telluric cancelation and monitoring transmitted current variations, with provision of EMAP-style MT data.
Natural / Artificial seismic monitoring
Mid- to long-term 3-component seismic monitoring (with or without additional controlled seismic sources) at broadly spaced (eg. 5 or 10km locations) for crustal tomography, seismic risk analyses, structural mapping, and others.
gDAS24 - Commonly used configurations