Practical insight on geophysical surveys in Indonesia — resistivity, groundwater, geotechnical, and exploration.
How the geoelectric method works, the types of instruments, and how to pick the right resistivity meter for groundwater, mineral, and geotechnical surveys.
Geophysical methods for groundwater exploration: resistivity, magnetic resonance sounding (NMR) that detects water directly, and borehole logging.
Vs30 is the basis of seismic site classification in SNI 1726. Learn how to measure it with MASW, refraction, and PS logging (OYO McSEIS-PS).
How seismic refraction and MASW work, when to use them, and the instruments needed to map bedrock depth and ground velocity profiles.
Why Induced Polarization is effective for detecting sulfide mineralization, and how to combine it with resistivity for more accurate exploration.
Principles of magnetic surveys, the difference between ground and drone (UAV) magnetometers, and the advantages of drone-based surveys for mineral exploration and mapping.
What geophysical borehole logging is, the common log types, and its applications for groundwater, geotechnics, and exploration.
