GENERAL GEOLOGY

GEOLOGY

PHYSICAL GEOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following represents the correct sequence of sedimentary rock formation?
A
erosion, weathering, compaction, cementation, deposition
B
compaction, cementation, deposition, weathering, erosion
C
deposition, cementation, compaction, erosion, weathering
D
weathering, erosion, deposition, compaction, cementation
Explanation: 

Detailed explanation-1: -The broken pieces of rocks are carried away by wind, glaciers and rivers. This process is called as erosion. The eroded material is finally deposited as pebbles, sand or mud. Therefore, the sequence of processes is: weathering, erosion, deposition.

Detailed explanation-2: -Sedimentary rocks are the product of 1) weathering of preexisting rocks, 2) transport of the weathering products, 3) deposition of the material, followed by 4) compaction, and 5) cementation of the sediment to form a rock. The latter two steps are called lithification.

Detailed explanation-3: -The most important geological processes that lead to the creation of sedimentary rocks are erosion, weathering, dissolution, precipitation, and lithification.

Detailed explanation-4: -PROCESSES OF THE ROCK CYCLE Several processes can turn one type of rock into another type of rock. The key processes of the rock cycle are crystallization, erosion and sedimentation, and metamorphism.

Detailed explanation-5: -Compaction and cementation are important stages in the sedimentary rock cycle. The sedimentary rock cycle describes how sedimentary rock forms and happens in the following order: erosion, deposition, compaction, cementation.

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