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.
The deeper you go, the more the rocks above press down on them.
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.
Density variations of seawater with latitude are very similar to those for temperature variations with latitude. Because of the influence of temperature on seawater density, low latitudes exhibit lower densities at the surface that rapidly increase with depth. Higher latitudes exhibit little or no difference in density owing to the lack of a thermocline. Such a rapid change in density with depth is called a pycnocline, and like a thermocline is absent at higher latitudes.
An increase in air density will mean a decrease in the absorption and radiation of energy. An increase of air density causes temperature and pressure to rise.
Increase
cottan balls The previous answer was surely a joke. The answer is rocks.
Rocks usually get different concentration levels as different strata are reached. The silica and magnesium content in rocks increases as the depth increases.
Density
Bulk density generally increases with soil depth due to increasing pressure from the soil column above. Porosity is inversely related to bulk density, thus porosity should decrease as soil depth increases.
By definition, increasing the density of rocks in the mountains would decrease the elevation of mountains. However one could try to reason that increasing the density would cause more increase in uplift and and increase in elevation.
the density of sea increases with depth
the density of sea increases with depth
As the iron content increases, it's density will also increase. Iron and magnesium rich rocks are known as mafic rocks. Please see the related link.
The density of water increases with depth due to the increase in pressure. As water molecules are packed closer together under high pressure, the density of water increases. Therefore, in deep water where the pressure is higher, the density of water is also higher.
As the depth increases, the density increases also.
As the depth increases, the density increases also.
The Earth's core is about 7 times the density of the surface rock. That means, a person in a deep mineshaft is getting closer to more mass. Therefore, density is relative to the depth of the earth by the correlation this has on a person's weight.
Most metamorphism takes place deep underground, where high heat and pressure change the rocks, since both increase with depth.
Buoyancy is proportional to fluid density but the question seems to imply density increasing with depth. Gases such as the atmosphere behave in that way. Liquids do not because they are to all intents and purposes incompressible. A cubic metre of water in Lake Baikal would still have a mass of 1Tonne whether at the surface or down at the bottom.