Question

The phenomenon not associated with imbricate structures is ___________

(a) Series of thrust blocks occur in close proximity

(b) Thrust blocks are piled up one above another

(c) All fault surfaces dip in the same direction

(d) Thrust blocks aren’t piled up one above another

The question was asked in final exam.

I would like to ask this question from Classification of Faults in section Faults and Faulting of Engineering Geology

Answer 1

The correct answer is (d) Thrust blocks aren’t piled up one above another

For explanation: When a series of thrust faults occur in close proximity, thrust blocks are piled up one above another and all the fault surfaces dip in same direction. The resulting interesting structure is known as an imbricate structure.