This is a system for physically exploring the geology of the deeper parts of the earth using state-of-the-art equipment and sensors. Geology and geologic structure, occurrence of ore deposits, occurrence of hydrothermal reservoirs, hot spring water aquifers, and environmental pollution are analyzed geophysically. ■Seismic reflection and refraction exploration ■Gravity exploration ■Magnetic exploration (airborne and surface) ■Electromagnetic exploration (CSAMT method, TEM method, VLF method) ■Electric exploration (IP method, resistivity image profiling) ■Radiometric exploration (γ-ray) ■Geophysical logging (temperature, electric, radiometric, acoustic, PS, caliper, etc.) ■Physical property measurements of rocks (specific gravity, magnetic susceptibility, resistivity, polarity, thermal conductivity, etc.) ■Processing of various data, and simulation analysis ■Precision survey using GPS ■Major surveys carried out