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Rocks

Published on: Apr 17 2016 by loma loma

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Rocks

Rocks and processes that are the earth’s surface:

The Earth’s crust is made up of different rocks, which is building a Alaabsah crust and oceanic crust.

Section of rocks exposed section is covered with soil and plants and buildings.

Rocks great importance to humans as the rock reveal to us the geological history of the earth and rocks consisting of metals and minerals made up of chemical elements.

Rock types:
1) igneous rocks:
It is the rock that is sourced from magma from the earth and features of these rocks generally Balhabibat coarse coherent and solid with some substance called “carnivorous materials” are divided into these rocks are divided into two types:

A_ackoralanfjarih: consisted exit of magma from the earth Fberdt and turned into rocks of the most important igneous rocks explosiveness is Albazelic

B_ackoralbatunaih: It also rocks formed from magma that oozed but did not reach the earth’s surface, but cooled in the ground

2) sedimentary rocks:

It rocks formed by the accumulation and deposition of different materials in the oceans and on the surface of the ground after the deposition of these materials operate two mechanisms dimensions make disintegrating layer material and precipitating into rocks, namely:

1-pressing him:

And works by compressing material deposited and piled on top of each this pressure leads to the CBS article downsized and discharged from the water.

2-cementation him:

Which are powered by the penetration of solvents into the inside, where the sediment serve as cement, which leads to hardening of the material, coherence and turn into sedimentary rocks.

* Recipes sedimentary rocks:

One-class-: All sedimentary rocks pile up on top of each other to form layers.

The bottom layer is the oldest and the top layer is the latest.

2-fossils and paleontology: within sedimentary rocks we can find fossils of a residue or marks preserved in rocks that indicate the presence of animals and plants outdated.

3) metamorphic rocks:

Rocks of this type have already been rocks of another kind as a result of exposure to heat and pressure

Occurred in which changes in the chemical building or mineral composition of the rock types and mass exchange these rocks we find some types of white marble and gray which turned out Rosobehubed types of marble brown and black rocks which turned from Fireworks rocks

How rocks comprise:

Acko composed by a process:

Altpelet: is the process of disintegration of the rocks and the formation of a larger amount of rock and lasting process Altpelet as long as long as the factors that affect the rock varies Altpelet kind of place to place and there are quick types of Altpelet a slow and other types There are three types of Tpelet namely:

Altpelet physical: It Altpelet working rock altering its shape and size without affecting the building chemotherapy for rock itself this kind of Altpelet associated climatic conditions are Mbaclr especially in the temperature change that lead to the expansion of the rock and contracting, as well as freezing the water inside the cracks rocky leading to increasing the volume of water and break up rock this kind prevails in the dry desert climate in the cold Arctic climate.

Altpelet Chemical: This type of Altpelet the presence of water or any other solvent such as citrus fruit or vegetable Alehioanejontejeh to the process of melting this is the chemical composition of the rock change and accordingly is also a physical change

Altpelet Membership: This type of Altpelet all previous types that the main factor which is an organism such as plants, animals, and these may be Altpelet Tpelet membership Mekangkeh For example, entering the trunks of the trees into the Rock and break it and also there Tpelet organic chemical which is that the organism norepinephrine membership change materials Chemical blend of rock.

After the process of Altpelet Taatbda after operations that are the earth’s surface:

1) Transportation: is the process in which the disintegrating material moves from one place to another

2) the shelf: a process in which the disintegrating material separated from the place and start to move

3) deposition: is the process in which the deposition material elsewhere and be a new view


Factors involved in the design of the terrain:

1) By the water: a big role in the design of the design of the terrain on the surface of the ground water is causing Altpelet shelf, transport and deposition.

Water in Nature found the movement of permanent they move from sea to land and space to land, sea and so on (natural water cycle) w that reaches the earth’s surface is either flowing waters of the upper or penetrate in the ground like water underground, water flowing in the valleys and streams rivers of great on the shelf and the transfer of materials Altpelet to the possibility of a low over all pregnancies waterborne called sediment the river, a boat from materials dissolved in the water molecules and small and large when afraid speed of the water flow Tbeida process of deposition Initially deposited pieces Kaberhoalthagalh and then cutting Alsgerhoalkhvifa either solutes in the water often is up to the mouth of the river and deposited in the sea examples of the types of terrain formed by water: waterfalls, Delta ……..

2) Wind: The wind played a big role in the design of the terrain, especially in regions

Desert wind, because there is very strong due to the lack of trees and apartment buildings This makes wind friction with the ground is weak and there is no reduces the wind speed of the most important forms of terrain designed by the wind: sand dunes, other forms such as the Ultimate cautioned pemphigus, columns

3) dermatoses: mean Paljladat glaciers giant extends over large distances and because of the size of these blocks and weight they leave marks even after the disappearance of these blocks is made up in cold regions where the ice melts and accumulates year after the new Nohvaljlad pressure on the old and out of the air and it turns to ice Solid .

This dermatoses do not keep their place, but advancing by gravity and through it you design the terrain.

About a tenth of the earth’s surface is covered with ice blocks and 97% of which are found at the poles and 3% found on the mountain tops highest in the world.

Of the most important forms of terrain designed by glaciers: Marj u find this scene in northern Europe and the last scene is Fayyord We find this scene in the State of Norway.

4) by the sea: the sea is the most important factor in the design of the coasts in the world designed Femiah sea terrain in with Altpelet shelf deposition and transport operations.

Sea water caused Tpelet Mekangkeh and Tpelet chemical Femiah powerful sea hit the rocks Vftha while salty seawater causing chemical Tpelet.


As a result of the work of water sailed many forms of terrain comprising the Astuar Bay and other

Filed under: minerals and rocks

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