The interior of the Earth, she sells sea shells like the other terrestrial planets, divided into cl

The interior of the Earth, she sells sea shells like the other terrestrial planets, divided into classes based on chemical properties, physical. The outer layer of the Earth's crust is a solid silicate layer consists of seven separate tectonic plates on a solid layer of plastic. Earth's crust separated from the mantle, by Mohorovicic discontinuity, and the thickness of the average change for 6 km and 30-50 km oceanic crust with continental she sells sea shells crust. And crust and upper mantle along the hard, cold called the lithosphere, and continental plates in the lithosphere is created. Below the lithosphere is the asthenosphere (atheno book) because it is composed of rock 'soft'. Under the mantle asthenosphere thickness of about 2,900 km and is home to the highest viscosity. The significant changes in crystal structure within the mantle occur at 410 and 660 km depth below the surface, undergoes a transition zone separating the upper and lower mantle. In the lower mantle, outer core with soft liquid lying on the solid core. The inner core may be rotating with angular velocity slightly higher than the rest of the planet she sells sea shells is about 0.5 per year 0.1-. The story of the Earth
Cross section of the Earth from the center of the earth atmosphere. she sells sea shells Depth [km The layer density g / cm 3 0-60 Lithosphere (5) [h] - 0-35 ... Crust (6) [i] 2.2 to 2.9 35-60 .. . the top of upper mantle (4) 3.4 to 4.4 Vol mantle 35-2890 (3) & (4) 3.4 to 5.6 ... 100-700 Asthenosphere - 2890-5100 outer core (2) Core in 5100-6378 from 9.9 to 12.2 (1) 12.8 to 13.1 [edit] she sells sea shells Heat
Earth's internal heat is generated by a combination of residual heat generated during the operation of the Earth (about 20%) and the heat generated by the radioactive decay (about 80%). The main isotopes involved she sells sea shells in thermogenesis is potassium -40, -238 uranium, uranium 235, thorium -232. In the center of the Earth, temperatures can reach 7000K and pressures up to 360 GPa can. Because most of the heat comes from the decay of radioactive substances, the scientists believe she sells sea shells that in the early stages of the Earth, before the amount of the radioactive isotope has a short half-life is reduced down, the heat generated is higher than Earth's. Thermal energy is more than twice the current at a time 3 billion years ago the earth temperature increases, the process speed of mantle convection and plate tectonics, and allowing she sells sea shells me the komatiite magma like that day no longer be created again. [62]
Total heat energy that Earth loses about 4.2 10 13 W. The thermal energy at the core is transmitted through the beam mantle crust; it is a form of convection include surge of hot rocks and can create hotspots and flood basalts. One other part of the Earth heat lost through plate tectonic activity when magma in the mantle rise in the mid-ocean ridge. The last form of heat loss is direct heat transfer path passing through the lithosphere, the majority she sells sea shells occur in the oceans because the crust is thinner there than on the mainland. she sells sea shells [63] [edit] The tectonic plates
Main article: Plate tectonics The tectonic plates of the Earth [65] Name Plate Plate size 10 6 km Africa [j] 78.0 60.9 Plate Antarctic she sells sea shells Plate Indo-Australian Plate 47.2 Asia- Plate North America 67.8 Europe 75.9 43.6 South American Plate Pacific Plate 103.3
The tough outer layer of the Earth's mechanical, or lithosphere, is broken into pieces called tectonic plates. The array is moved relative to each other in one of three types of plate boundaries: convergent when two plates collide; Rift when two plates push each other away, transform the array slide along the fracture. Earthquakes, volcanic activity, the formation of mountain ranges, and ocean trenches have appeared along this boundary. The tectonic plates located on the volume atheno (asthenosphere), the solid but less viscous upper mantle can flow and move along the tectonic plates, and their movement is closely tied to the type of convection within the mantle Earth.
When tectonic plates move, the ocean floor is subducted continental edge or boundary in convergence. Meanwhile, the erupting magma at divergent boundaries creates mid-ocean ridges. The combination of these processes in oceanic crust pushes back layers ph