GENERAL GEOLOGY

Detailed explanation-1: -Compression squeezes rocks together, causing rocks to fold or fracture (break) (figure 1). Compression is the most common stress at convergent plate boundaries. Rocks that are pulled apart are under tension. Rocks under tension lengthen or break apart.

Detailed explanation-2: -The movement of the Earth’s plates leads to rocks being compressed into each other, and this in turn leads to the formation of folds and faults. Folds form when the layers of rock bend around, and faults occur where rock layers actually break, and in some cases slide over each other.

Detailed explanation-3: -Anticlines are folded rocks that arch upward and dip away from the center of the fold. The oldest rocks are at the center of an anticline and the youngest are draped over them.

Detailed explanation-4: -Explanation: Folds may be defined as undulations or bends or curvatures developed in the rocks of the crust as a result of stresses to which these rocks have been subjected from time to time in the past history of the Earth.