Question 23
Earth Movements and VulcanicityUse Figure 1 (a cross-section of folded rock layers with a line marked F–F) to answer this question. The Figure 1 represents
- A.an overthrust fold
- B.a simple fold
- C.an asymmetrical fold
- D.a symmetrical fold.
Show the answer and explanation
Answer: A (an overthrust fold)
Explanation
The fold has been pushed over so far that it has broken and moved along a thrust plane (F–F): an overthrust fold.