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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

Rocks formed from consolidated sediment

A unit of mass equal to 2,000lbs. or 907.18474 kg.

Particles, sand, gravel and other rock, found loose, suspended in solid or liquid, or consolidated

Any length of mineralization, often a discontinuous vein

Wire mesh of various size, used for classifying gravel by size

A usually grayish, fine grained mineral substance composed of the metamorphosised compaction of any of clay, volcanic ash, and shale sediments