- Crust : The crust is very thin (average 20Km). This does not sound very thin but if you were to imagine the Earth as a football, the crust would be about ½millimetre thick
- Oceanic Crust : contained Silicon and magnesium. The thinnest parts are under the oceans (OCEANIC CRUST) and go to a depth of roughly 10 kilometres
- Continental Crust : contained Silium and alumunium. The thickest parts are the continents (CONTINENTAL CRUST) which extend down to 35 kilometres on average
- Lithosphere : Has two layer, they are SiAl (Silium-alumunium) dan SiMa (Silikon Magnesium).It has the thickness about 40-60 kilometres. Lithosphere has Silicon-oksida until 59,12 %, and it also called Silicat layer. It has the deep 1.200 kms
- Asthenosphere : The between is the nicel and ferum. It’s the liquid layer. It has the deep 1700 kms and it has the very high temperature
- Mohorocivic : it’s stronger due to high pressure. It layed between mantle and Lithosphere
- Mantle : It’s the layer of hard rock. Its temperature is 30000 C. And the thickness is 2900 kms
- Outer core : The outer core is the layer beneath the mantle. It is made of liquid iron and nickel. Complex convection currents give rise to a dynamo effect which is responsible for the Earth's magnetic field. Its thickness is 2200 kms
- Inner core : The inner core is the bit in the middle!. It is made of solid iron and nickel. Temperatures in the core are thought to be in the region of 5000-6000°c and it's solid due to the massive pressure. Its thickness is 1250 kms
Minggu, 27 Februari 2011
Lithosphere
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