When Folding Occurs, Rocks Situated in the Hinges (On the Axes)

question 54

Multiple Choice

When folding occurs, rocks situated in the hinges (on the axes) of the folds are____________ .

• A) plastically deformed and extruded down the flanks of the folds
• B) crushed and compressed to make them atypically dense and tight
• C) elongated and pulled apart to produce tensional joints and greater fracture porosity
• D) sheared out parallel to the fold limbs

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