28 Şubat 2011 Pazartesi

Wear


Wear

internal power of continents, the earth energy source of the plate movement engine, a much larger external energy source would be in the process of destruction of the continents eroding effect: solar energy. The atmosphere provides the energy required to move the cycle of water movement and sunlight, water and wind erosion of minerals from the surface of the continent with the ocean again removed with the help of these two vehicle crash sustain databases to help. This mechanism gradually thickened in the sedimentary rock layer accumulated on the oceanic crust, transported and then melts into the interior of the Earth in the subduction mechanism.

Wear mechanism follows the movement of water under the influence of gravity, aşınarak the high mountains lowered, the depths of the ocean leads to an increase in siltation, which törpülenerek in the recesses and projections on the globe by the effect of inclusion in the direction of approach the ideal format works geoid determined.

Various theories have been the origin of the solar system is proposed. Kant-Laplace theory is regarded as the current theory is the theory called the Nebula. According to this theory, fog, called a spiral motion around the rotational axis of the mass of hot gas, cooled gradually reduced. This is formed in the center of attraction of the sun back. Those who are drawn by the sun light gases, other than shooting the effect of the cavity extends to different distances from the sun cooled down those planets are formed.

The origin of the earth world, was a superheated gas mass in the solar system occurs. Over time, the effect of rotation around the axis, the cold outside in, so intertwined layers of different temperatures together. Today, high-temperature protected inland. The origin of the earth and soil structure since the last time to be determined with the aid of geological time.

Geologic Time Earth about 4500000000 years old, was until now in various stages. Each of these phases, called geologic time, climatic conditions in different species and found. The investigation of the structure of the Earth geology, geological history, the determination of the characteristics of the fossils and sedimentary layers. Geologic time today at the top, next time do a ranking.

First Time Second Time Third Time Prehistoric fourth time

Primitive time between now and the end of the standard geological time about 600 million years old. Primitive time, it is estimated that about put 4000000000 years.

Important events of that time: the emergence of the oldest continental nuclei in water, the formation of single-celled organisms

Radiolaria, which characterizes the time of primitive algae and microorganisms.

First Time (Paleozoic)

Default between now and the end of geological time about 225 million years old. The first time is estimated to put about 375 million years.

Important events of that time: Caledonia, in particular the formation of wrinkles Hersinya soot plants in the first period of the formation of coal deposits similar to the formation of the first organisms to fish for the first time marked by the emergence of the organisms and trilobittir graptolites.

The second time (Mesozoic) between now and the end of the standard geological time about 65 million years old. The second time, it is estimated that about 160 million years make. What characterized the second time were not at the end of this time of the dinosaurs and ammonites.

Time important events: the appearance of Equatorial Guinea and cold climates Kimmeridge and the second time that the formation of wrinkles characterized Avustrien ammonites and dinosaur creatures.

Third time (Neozoik) between now and the end of the standard geological time, about 2,000,000 years old. The third time, it is estimated that about 63 million years share.

Important events of that time to win the look of the start of today's continents § § § current climate zones and plant communities in the formation of brown coal basin for the development of § § fold Nümmilitler Alpine and the third time that the emergence nummilit life of mammals, Hipparion, Elephas and start characterized mastadondur appear.

Fourth Time (Quaternary) began 2 million years old and still between now and the standard of geological time. Important events of the day: climate change, and four great ice age (Günz, Mindel, Riss, Wurm) to live human life forms that characterize the emergence of the mammoth and the man is the fourth time

Earth internal structure of the world, thickness, density and temperature are different, made several nested layers. Edinilirken information on the properties of these layers are used seismic waves.

Core-mantle Taşküre (lithosphere)

Seismic waves Seismic waves show different wavelengths. Seismic waves, which increases by dense layers with smaller wavelengths, the number of oscillations. Density of the layers at the longer wavelength, the number of oscillations is reduced.

The core density and weight of the heavy elements in the partition. Part of the world's inner core, outer core part km'ler 5120-2890, 6371-5150 km'ler part of the inner core is called. The inner core of iron-nickel mixture at high pressure and temperature affect the crystalline state. This mixture is already in the molten outer core.

Layer between the core and mantle lithosphere. The mantle density between 3.3 to 5.5 g/cm3 km'ler 100-2890 ° C temperature range between 1900 and 3700th Mantle, the greatest part of the volume of the space creates. Structure of silicon, magnesium, nickel and iron available. The upper part of the mantle as the high temperature and pressure plastic function. Sub-sections in the liquid state. Mantle is therefore constantly alçalıcı-yükselici movements.

The upper and lower parts of the mantle Mantle Alçalıcı-Yükselici movements by density difference between hot liquid substance called magma rises to yerkabuğuna. Sections increases the density of the magma is inserted into the ground.

Taşküre (lithosphere) mantle layer is up and down on the ground. The average thickness of 100 km. Taşküre'nin average of 35 km is the upper part of the earth's crust known. More than silicon and aluminum in the composition by the formation of stones called SIAL. is in the section on the bottom of the earth's crust is made of silicon and magnesium is called for the function. Sial is lost thinner sole of the ocean in some places. For example, SIAL in some parts of the Pacific Ocean floor seen. 33 m from the earth to rise deep into the earth at a temperature increase of 1 ° C. This step is as Geotherm.

Continents and oceans of the earth and the water masses formed part of the upper part of the country. That looks like a very large island in the middle of the sea is as continental land masses. Northern half Küre country, the southern half Küre larger space. Asia, Europe, North America and throughout the African continent is in much of the northern half Küre away. A large part of South America and Africa, Australia and islands around the Antarctic continent is located in the South Half Küre. The Earth, about ¾ full of water is covered. Does the great sea that separates the continents of the waters.

Results of land and sea in the various countries, the more room for the northern half Dağılışının Kure, Küre northern half, and annual average temperature is higher. Temperature differences are more pronounced. Co-widths of the temperature curves shows more variation. It is easier to transport between continents. Are more numerous than the population. The development of cultures and it is easier to spread. Fast and highly developed economy.

Hipsografik curve of the earth, the steps of the height and depth curve. Continental Platform: deep-sea platform, then the widest part of the high mountains and coastal plains. The average land Elevation: 1000 m is the average height of the country. Everest 8840 meters above sea level, where the world's highest mountain. Continental Shelf: Under the sea level, is up on the shore line at -200 m deep called in the continental shelf (shelf). As part of the continental shelf remained under water. Continental margin: shelf is the section that connects with the deep-sea platform. Marine Average Depth: Average depth 4000 m is the sea. Denz Mariana Trench is the deepest place in the world 11 035 m depth. Deep Sea Platform: Continental, surrounded by hills, the average depth of 6000 m with most of the earth. Deep Sea Pits: moving continents on Sima, where everyone is in çarptıkları. The narrowest point of the earth.(ALINTIDIR)

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