The mantle is the solid layer of earth that can flow because of great heat and pressure
Temperature and pressure increase massively from earth's surface to the centre of the Earth. At the inner core, the pressure is so great that iron is solid, even at such high temperatures.
The mantle is mostly solid due to high pressure and temperature, but it can partially melt in certain areas near the surface or where there is intense heat from the core. This molten material can rise and create volcanic activity.
Pressure is involved because as the plates move apart, lower mantle material is hot, flexible, and solid. This rock is solid because of the great pressure of the layers above it. However. as the rock of the lower mantle rises, the pressure drops and the material melts.
The inner core is solid.The outer core is liquid.It may seem odd that the hotter, inner core is solid while the outer core is liquid magma, but in the inner core you have the entire pressure of the earth pushing down on you.The outer core is hot, molten iron and nickel under extreme pressure. Convection currents cause movements in the liquid outer core. Scientists hypothesize that these movements cause Earth's magnetic field. The outer core surrounds the inner core, which occupies the center of Earth. The inner core is also iron and nickel and is also extremely hot. But pressure within the inner core is so great that it remains a solid.
Metamorphic rocks form deep under the Earth's surface because the high pressures and temperatures required for the transformation of existing rocks into metamorphic rocks are typically found at greater depths. These conditions are usually created by tectonic forces or by the burial of rocks under layers of sediment.
the entire mantle is solid because the pressure is so great the rock are unable to melt.
The pressure (due to gravity) in the center of the Earth is so great, that it compresses the otherwise molten metal alloy - to a solid.
As you go closer to the center of the Earth, pressure increases. The pressure at the center is great enough that rather than it be a liquid, it has been compressed to a solid state.
As far as we can tell, the inner core of our planet is made of a mixture of nickel and iron. The high temperature, under normal pressure, would melt nickel and iron, however, the core is under enormous pressure because of the weight of the mantle and crust, which are on top of it, and pressure tends to push substances in the direction of a more solid phase.
Temperature and pressure increase massively from earth's surface to the centre of the Earth. At the inner core, the pressure is so great that iron is solid, even at such high temperatures.
Temperature and pressure increase massively from the Earth's surface to the centre of the Earth. At the inner core, the pressure is so great that iron is solid, even at such high temperatures.
The great pressure heats up the rock so that it melts. Further down, in the central core, the pressure is so high that the iron-nickel mixture is solid.
The surface pressure on Saturn varies significantly due to its gaseous nature and lack of a solid surface. However, estimates suggest that the pressure at the cloud tops is around 1 bar, similar to Earth's atmospheric pressure. As one descends deeper into the atmosphere, the pressure increases dramatically, reaching thousands of times that of Earth's pressure at great depths.
The inner core is solid due to the high pressure. Even at such a temperature, the pressure is so great that the material can only exist as a solid. The outer core is liquid as it is at a huge temperature, yet does not have the pressure to force it into solid form.
-the inner core of the earth has temperatures and pressures so great, that metals are squeezed together and not able to move. -the inner core is a solid because of the high pressure -the core is 800 miles or 2000 km in diameter. -The temperature of the core is more than 4,400 degrees c. or 9032-10832 degrees F It is a solid because of all the pressure it gets or has. -It is the final layer of the earth. -It is mostly made up of iron and a little amount of nickel. -it generates a magnetic field -its density is about 15g/cm3
The mantle is mostly solid due to high pressure and temperature, but it can partially melt in certain areas near the surface or where there is intense heat from the core. This molten material can rise and create volcanic activity.
When a volcano explodes, it is due to the decompression of gasses trapped in the magma. A gas will expand greatly with a large pressure change. A liquid or solid will not. Additionally, the core has thousands of miles of rock on top of it. The weight of the rocks is what generates the enormous pressure, and it is also what holds the high pressure environment in place.