shear zone

geology

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June 17, 2026

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A shear zone in geology is an area characterized by shear structures or closely spaced, parallel faults. These zones often act as pathways for underground solutions and are sites where ore deposits can form.1

In the context of plate tectonics, shear occurs when lithospheric plates slide past one another. These zones of shear link other plate boundaries and are known as transform faults.234

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tunnels and underground excavations
Nature of the rock mass
…with claylike material called gouge), shear zones (crushed from shear displacement), altered zones (in which heat or chemical action have largely destroyed the original bond cementing the rock crystals), bedding planes, and weak seams (in shale, often altered to clay). Since these geologic details (or hazards) usually can only be…
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…with claylike material called gouge), shear zones (crushed from shear displacement), altered zones (in which heat or chemical action have largely destroyed the original bond cementing the rock crystals), bedding planes, and weak seams (in shale, often altered to clay). Since these geologic details (or hazards) usually can only be…
Read More