Fold axis
Lesson Flashcards: Folds
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An imaginary straight line of intersection of the axial plane with the surface of all different layers
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Anticline
A type of fold that is convex upward and whose oldest rocks are in its core
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Fold limbs
The flanks of a fold, found on both sides of the axial plane
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Compressional stress
The stress that squeezes something and is the stress component perpendicular to a given surface
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Fold
A wavelike structure formed by the bending of any type of rock due to compressional stress
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Stress
Force applied per unit area
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Fold axial plane
An imaginary plane that bisects a fold into two halves that are as similar as possible
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Fold hinge point
The point of maximum curvature on a folded surface
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Syncline
A type of fold that is concave upward and whose youngest rocks are in its core
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Score