GENERAL GEOLOGY

GEOLOGY

STRATIGRAPHY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which principle or law states that “When layers of sediments are deposited, they settle in flat, horizontal layers due to gravity."
A
Uniformitarianism
B
Original Horizontality
C
Lateral Continuity
D
Superposition
Explanation: 

Detailed explanation-1: -The principle of original horizontality states that layers of sediment are originally deposited horizontally under the action of gravity. It is a relative dating technique. The principle is important to the analysis of folded and tilted strata.

Detailed explanation-2: -The Law of Original Horizontality suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed. This allows us to infer that something must have happened to the rocks to make them tilted. This includes mountain building events, earthquakes, and faulting.

Detailed explanation-3: -Deposition is the geological process in which sediments, soil and rocks are added to a landform or landmass. Wind, ice, water, and gravity transport previously weathered surface material, which, at the loss of enough kinetic energy in the fluid, is deposited, building up layers of sediment.

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