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USGS CMG InfoBank: Geologic Structure Classes

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Comment: 07:07 - 07:33 (00:26)
Source: Annenberg/CPB Resources - Earth Revealed - 8. Earth's Structures
Keywords: structure, deformation, unconformity, fault, fracture, fold

Our transcription: But drawing cross sections involves more than just applying this technique.
A knowledge of common types of geological structures is also essential.
Geologists recognize three main classes of structure caused by deformation in Earth's crust: unconformities, faults and fractures, and folds.

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