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Related Flashcards
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Cards In This Set
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What is stress?
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Force per unit area (compression, tension, and shear). The rate of application effects response
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What is strain?
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The change in size or shape in response to stress
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Rocks respond to stress with elastic or plastic behavior which results to...?
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Brittle fracture or ductile failure
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Characteristics of elastic behavior are...?
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Linear relationship of stress and strain, strain is recoverable (the material returns to its original shape with the stress is removed)
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Elastic Limit...?
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If exceeded, the material fractures (brittle failure, faults and earthquakes!)
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Geological maps represent...?
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Rock types and geological structures such as tilted beds, joints, faults, and folds
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What is a strike?
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A compass direction of a line formed by the intersection of an inclined plane with a horizontal plane
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What is a dip?
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Dip is the direction and angle horizontal in which a plane is oriented
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What are folds?
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Wavelike bends in layered rock (rock strained in a ductile manner, usually under compression)
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What is the axial plane?
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It divides a fold into two limbs.
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What is the surface trace of an axial plane called?
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A hinge line (or axis) of the fold
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What is an anticline?
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Upward-arching folds
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What are synclines?
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Downward-arching folds
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Plunging folds ...?
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Hinge line is not horizontal
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Isoclinal folds...?
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Parallel limbs
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