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# Why the density of rocks increase with depth?

Updated: 8/9/2023

Wiki User

6y ago

According to the Law of Superposition, in an undisturbed column of rock layers, the oldest layers are at the bottom, the youngest at the top. Logically, there must be a first layer, without which the succeeding layer would not rest. Deposits of sediments that appear in sedimentary rock are laid down over long periods of time and often appear layered, like the pages of a book that starts at a certain time and goes back further in time with each page.

Wiki User

14y ago

Wiki User

15y ago

The deeper you go, the more the rocks above press down on them.

Wiki User

6y ago

Because the weight of the rock above is pressing down towards the Earth's centre. Basically - the closer you are to the centre of the Earth - the more rock is pressing down.

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### What is the relationship between the density of earth materials and depth below the surface of the earth?

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