Earth - our vast common house that you always want to see a nice, but today it is in serious danger, and to blame for his troubles we humans.Man has always thought that the planet on which he lives - reliable, unlimited and infinitely generous, but that it is their activities can cause pollution of the lithosphere, could not even imagine.
Today, we often ask ourselves the question of how to ensure the safety of the Earth and ourselves.This is especially observed last decade, when actually caused harm is becoming more evident.
seemed earlier that the Earth will exist unchanged for thousands of years have not yet, but recently rose to humanity such serious problems as the pollution of the lithosphere.Painful impression produced were once fertile land that today exhausted and unfit for farming.
lithosphere contamination has led to the fact that part of the soil never been used in agriculture since it has completely lost productivity.Today, these lands occupy almost 1% of the land surface.
Our time is deservedly called "junk civilization."Previously descendants inherited for centuries left castles or at worst ruined fortress, the heirs will receive from us the mountain of household waste, which are commonly accumulated in the suburbs.It is caused by thoughtless human activity and its desire to make a profit at any cost.
factors causing pollution of the lithosphere - is, first of all, industrial and agricultural waste, uncontrolled construction, the huge scale of mining.Mankind is irreversibly destroys what is for him a source of livelihood.Large corporations, was unceremoniously poured into the ground radioactive substances, toxic chemicals, and metal oxides.The fact that the pollution of the lithosphere can cause ecological catastrophe from which no one is safe, they are of little interest.The consequences are already breaking out all over the place in different corners of the Earth.
What is the structure of the lithosphere, what we know about her?If we look at the chemical composition of the rocks that are in the earth's crust, it can only be judged fairly on the depth of up to 15-16 km.What happens deeper, scientists today have not been studied until the end, and about many phenomena, they can only guess.The difficulty lies in the fact that the lithosphere is available only direct research in the areas of land.
sometimes confuse "the crust" and "lithosphere", but they are not identical, but just close enough in meaning.Lithosphere - is uppermost, solid Earth.It consists of high-strength rock.About the thickness it still argue the scientists, some call the range of 30-40 km, while others tend to think that it is 60-70 km.
Lithosphere structure is as follows: the crust, upper mantle, as well as moving the area or folded belt and stable platform.If we look at its structure under the ocean and under the continents, it is significantly different.Under the latter, it consists of layers of granite, basalt and sediment thickness of up to 80 km, and in the ocean of the rare elements: dunite and harzburgite, its thickness in these regions is about 5-10 km and the granite layer at all.
Ecological functions of the lithosphere: geodynamic, geochemical and geophysical.They are caused, first of all, the evolution of our Earth.The first includes natural and anthropogenic processes, provides a comfortable and, of course, the safety of human habitation on Earth.The second and third - a geochemical and geophysical fields that directly affect the state of the community of living organisms and, of course, in the human environment.
Earth is like a human body, any improper interference would have undesirable consequences, and expect a man only self-regulating ecological functions of the lithosphere - is irresponsible and short-sighted.
