GENERAL GEOLOGY

GEOLOGY

PALEONTOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The ____ states that layers of sediment were originally deposited horizontally under the action of gravity.
A
law of superposition
B
law of horizontality
C
uniformitarianism
D
unconformities
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: -The principle of original horizontality declares that the origin of rock is based on the horizontal deposition. In other words, this principle states that the layers of sediment (rock) are originally deposited in a horizontal pattern, which is governed by the action of gravity.

Detailed explanation-4: -Steno’s Law of Original Horizontality states that most sediments, when originally formed, were laid down horizontally.

Detailed explanation-5: -According to the Principle of Original Horizontality, sediments are deposited horizontally. After they have been transformed into rock, strata may become tilted or folded by various tectonic movements. However, this principle basically states that “tilted or folded layers used to be flat”.

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