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An angular unconformity is one in which the beds above and below are

  • A.parallel with no visible break
  • B.parallel but separated by a long interval
  • C.of identical age
  • D.at different angles of dip

Answer: D

Correct answer: at different angles of dip

The angular unconformity is the most obvious kind and tells the fullest story: the lower beds were deposited, tilted or folded, eroded to a surface, and then buried by younger beds laid down at a different angle. Hutton’s unconformity at Siccar Point is the classic example.

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