GENERAL GEOLOGY

Detailed explanation-1: -law of superposition, a major principle of stratigraphy stating that within a sequence of layers of sedimentary rock, the oldest layer is at the base and that the layers are progressively younger with ascending order in the sequence.

Detailed explanation-2: -The cross-cutting law says that if a rock is cut by another rock, then it is older than the rock which has cut it. Stratigraphy-The branch of geology that studies rock layers (strata) & layering (stratification). It is primarily used in the study of sedimentary & layered volcanic rocks.

Detailed explanation-3: -The Law of Superposition Newer or younger rock layers are found on top. Older rock layers are found at the bottom. Scientists can read layers of rock knowing that each layer of sediment is deposited on top of older layers.

Detailed explanation-4: -Students can define the Law of Superposition. • The law says that within a sequence of layers of. sedimentary rock, the oldest layer is at the bottom and. each layer above gets progressively younger. 2.

Detailed explanation-5: -The main law is the law of superposition. This law states that deeper rock layers are older than layers closer to the surface. An unconformity is a gap in rock layers. They occur where older rock layers eroded away completely before new rock layers were deposited.