A vertical excavation in rock used for the transport of workers and/or material
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Category: <span>S</span>
A vertical excavation in rock used for the transport of workers and/or material
A mineral comprised of ultramafic magnesium silicate rock having undergone hydration and metamorphosis
A geophysical prospecting technique, measuring electric current conducted by sulphide bodies
A light, non-metallic mineral element. Symbol, Se
A finely crystallized gypsum mass, CaSO4·2H2O
The study of the origin and effect of earthquakes, and measurement thereof
See seismic prospecting
A geophysical study of the study of bedrock depth, or cavity location by the measuring the reflection of shockwaves induced into the ground
A hexagonal, metallic mineral ore of iron, composed of iron carbonate FeCO3