SUNKARA DEVIPRASANTH ID 160080009 PETROLEUM ENGINEERING NAME OF THE SEMINOR : PARTS OF EARTH
Parts of the earth
Inner Core Solid Outer Core Liquid Mantle Crust Lithosphere – Crust and Upper Layer of the Mantle Layer of the Mantle (asthenosphere) that consists of hot rock of tar-like consistency, which slowly moves
The Crust * The Earth’s crust is like the skin of an apple. It is very thin compared to the other three layers. The crust makes up 1% of the Earth. The crust of the Earth is broken into many pieces called plates. In crust metamorphic , and sedimentary rocks ect . Earth's mantle and crust formed about 100 million years after the formation of the planet about 4.6ago
Thinnest layer of the Earth that ranges from only 2 miles in some areas of the ocean floor to 75 miles deep under mountains Made up of large amounts of silicon and aluminum Two types of crust: oceanic crust and continental crust Composed of plates on which the continents and oceans rest Ocean Land Oceanic Crust Continental Crust
The Mantle The mantle is the layer below the crust. The mantle is the largest layer of the Earth. The mantle is divided into two regions: the upper and lower sections . Earth's mantle is an average thickness of 2,886 kilometres The mantle makes up about 84% of Earth's volume.It is predominantly solid but it behaves as a very viscous fluid .
Solid but capable of flow (like hot asphalt ) Thickest layer of the Earth (making up 70% of the Earth’s mass) The hot material (magma) in the mantle rises to the top of the mantle, cools, then sinks, reheats, and rises again. These convection currents cause changes in the Earth’s surface Upper Mantle Convection Currents Middle Mantle Lower Mantle Mantle
Outer Core * The core of the Earth is like a ball of very hot metals. * The outer core is liquid. * The outer core is made up of iron and is very dense.
Outer Core Molten (liquid) metal that is about 4,700°C (8,500°F) Located about 1,800 miles beneath the crust and is about 1,400 miles thick Composed of the melted metals nickel and iron
Inner Core Solid sphere composed mostly of iron It is believed to be as hot as 6,650°C (12,000°F) Heat in the core is probably generated by the radioactive decay of uranium and other elements It is solid because of the pressure from the outer core, mantle, and crust compressing it tremendously
Inner Core * The inner core of the Earth has temperatures and pressures so great that the metals are squeezed together and are not able to move. * The inner core is a solid.
Layers of the Earth
Exosphere: 700 to 10,000 km (440 to 6,200 miles) Thermosphere: 80 to 700 km (50 to 440 miles) Mesosphere: 50 to 80 km (31 to 50 miles) Stratosphere: 12 to 50 km (7 to 31 miles) Troposphere: 0 to 12 km (0 to 7 miles)
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conclusion Earth is made of of four layers, the crust, mantle, and outer core, and the inner core. Inside and around Earth there is five spheres, the Geosphere(Lithosphere), the Atomosphere , the Hydrosphere, the Cryosphere, and the Biosphere. These spheres all interact to make what life what it is here on Earth. It is the ground we walk on, the air we breath, the water we drink. the cold places we live and all the living creatures here on Earth.