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A dome differs from an anticline in that its beds dip

  • A.vertically around its margin
  • B.outward in all directions from a central point
  • C.away from a linear axis only
  • D.toward a central point from all directions

Answer: B

Correct answer: outward in all directions from a central point

A dome is a fold with no axis of elongation: the beds dip away in every direction from a central high, so the outcrop pattern is a set of concentric rings with the oldest in the middle. An anticline has a linear axis and its beds dip away in only two directions. The basin is the corresponding downfold, with the youngest rocks in the centre.

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