GENERAL GEOLOGY

Detailed explanation-1: -Sedimentary rocks are originally laid down vertically. Sedimentary rocks form with the oldest layers on the bottom and the youngest on top. Sediments are deposited horizontally so sedimentary rock layers are originally horizontal. Sedimentary rock layers that are not horizontal are deformed.

Detailed explanation-2: -Principle of Original Horizontality, states that sediments are deposited in flat, horizontal layers. Sedimentary particles settling under the influence of gravity in a body of water will deposit horizontal layer of sediment.

Detailed explanation-3: -Deltas, river banks, and the bottom of waterfalls are common areas where sediment accumulates. Glaciers can freeze sediment and then deposit it elsewhere as the ice carves its way through the landscape or melts.

Detailed explanation-4: -Pieces of rock are loosened by weathering, then transported to some basin or depression where sediment is trapped. If the sediment is buried deeply, it becomes compacted and cemented, forming sedimentary rock. Clastic sedimentary rocks may have particles ranging in size from microscopic clay to huge boulders.

Detailed explanation-5: -Law of Horizontality As sediments deposit, they deposit in horizontal layers. This is known as the Law of Horizontality. The oldest layers are at the bottom and the newest layers are at the top. If you were to dig down through the layers, you would be going back in geologic time.