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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 agoThe deeper you go, the more the rocks above press down on them.
Wiki User
∙ 6y agoBecause 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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Why do high latitude water lack a pycnocline?
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.
What effect does air density have on the absorption and radiation of energy?
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.
Rocks can melt without changing temperature when the pressure exerted on them is .?
Increase
What has more density a cotton ball or rocks?
cottan balls The previous answer was surely a joke. The answer is rocks.
A high concentration of a mineral in rock?
Rocks usually get different concentration levels as different strata are reached. The silica and magnesium content in rocks increases as the depth increases.
Which characteristic of rocks tends to increase as the rocks are metamorphosed?
Density
Does the soil porosity increase as the depth increases?
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.
How would elevation of mountains be different if rocks were denser?
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.
How does the density of sea change with depth?
the density of sea increases with depth
How does the density of water change with depth?
the density of sea increases with depth
As the amount of iron in an ignous rock becomes greater its density will?
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.
Why is density of water more in deep water?
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.
What is the relationship between the density of earth materials and depth below the surface of the earth?
As the depth increases, the density increases also.
What is the relationship between the density of the earths materials and depth below the surface of the earth?
As the depth increases, the density increases also.
It so happens that an actual increase in weight is found in even the deepest mine shafts what does this tell us about how the Earth's density changes with depth?
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.
Where does metamorphism take place?
Most metamorphism takes place deep underground, where high heat and pressure change the rocks, since both increase with depth.
Is the buoyant force caused by the increase in density in depth fluid?
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.
