Pressure and extreme heat.
The weight of the rocks in the crust and upper mantle.
Diamonds are believed to be formed about 90 miles below the surface of the Earth, in the mantle. So, the weight of the Earth above them creates the pressure to form diamonds.
Generally, diamonds are formed in the Earth and not from Supernovas.
Diamonds are usually formed in the upper mantle.
Natural diamonds are stones recovered from the area around volcanic pipes where diamonds erupt from below the earth's mantle.
The weight of the rocks in the crust and upper mantle results in the pressure that allows diamonds to form.
The weight of the rocks in the crust and upper mantle.
Diamonds are believed to be formed about 90 miles below the surface of the Earth, in the mantle. So, the weight of the Earth above them creates the pressure to form diamonds.
The weight of the rocks in the crust and upper mantle results in the pressure that allows diamonds to form.
The overburden load / self weight of the approximately 150 to 190 km of material that overlies the layer of the Earth's mantle where diamonds form creates the pressure required.
Diamonds are able to form in the Earthâ??s mantle. This is because there is carbon and great amounts of heat and pressure.
Overburden or lithostatic pressure.
Diamonds form under great pressure and heat in the mantle. The mantle surrounds the core. Diamonds are found in intrusive lava, (underground deposits)
Gravity and the mass of rock above the diamond stability zone.
The vast majority of diamonds form within the Earth's lithospheric mantle at depths of around 150 to 190 km. Volcanic pipes bring them to the surface with kimberlite or lamproite in the pipes. Diamonds are formed from carbon.
Overburden or lithostatic pressure.
The weight of the rocks above the mantle results in high pressure.Diamonds need high temperatures and pressure to form from carbon. Diamonds form in the mantle in certain zones where conditions are right for them to do so.There just happens to be the right critical temperature-pressure-mineral environment in the mantle in certain zones for their formation.