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A paraconformity is difficult to detect because

  • A.the underlying rock is igneous
  • B.it is always concealed by a fault
  • C.the beds are parallel and the surface shows no erosion
  • D.the beds are discordant in dip

Answer: C

Correct answer: the beds are parallel and the surface shows no erosion

A paraconformity is a break with nothing to see: the beds are parallel, the surface is planar and unremarkable, and the contact looks entirely conformable. It is detected only from the fossils or the radiometric ages, which reveal that a great span of time is missing from an apparently continuous sequence.

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