Decreasing the pressure will not produce liquid rock below the surface.
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Melting of a rock at temperatures below its melting point would not produce liquid rock below the surface. The other processes, such as increased temperature or pressure, would lead to the formation of liquid rock.
The liquid below the surface of the earth is mostly molten rock, called magma. It is found in the mantle layer of the earth, between the crust and the core. The outer core of the earth is also a liquid, consisting mainly of molten iron and nickel.
Yes, soil can form below the Earth's surface through various processes such as weathering of bedrock and deposition of sediments. Over time, these processes can create layers of soil that are found beneath the topsoil.
Yes, groundwater is typically found in liquid form within the spaces between soil particles and rocks below the Earth's surface.
The ice deposited by the atmosphere on a surface that is below freezing is known as frost. Frost typically forms when water vapor in the air comes into contact with a cold surface and freezes without first becoming liquid.
Mantle minerals such as olivine and pyroxene originate between 60 to 200 kilometers below the Earth's surface. These minerals are brought to the surface by volcanic activity through processes like magma rising from the mantle and erupting as lava.