This is in the mantle or upper mantle.
This is in the mantle or upper mantle.
The atmosphere is not part of Earth's interior. The Earth's interior comprises the crust, mantle, outer core, and inner core. The atmosphere is the layer of gases that surrounds the planet and is part of the Earth's external environment.
core
The outer mantle
The Earth's mantle is the thickest part of the interior, about 2900 km thick, and has a temperature of about 1000 degrees C. This makes it elastic : it can be pushed down by the weight of the crust, and return to its original position when the load decreases. This has occurred when large ice caps (such as Greenland and Antarctica) add to the weight of the crust.
The temperature can reach 1800 degrees Celsius in the Earth's mantle, specifically in the lowermost part called the lower mantle. This high temperature is due to the immense pressure and heat generated by the movement of tectonic plates and radioactive decay within the Earth's interior.
The outer core.
The heat increases to the point that rocks can begin to melt in the lower part of the Earth's mantle, known as the asthenosphere. This is where the temperature and pressure conditions allow for rocks to melt and form magma.
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Temperature plays a crucial role in changing the state of materials within the Earth's interior because it affects the physical and chemical properties of rocks and minerals. As temperature increases with depth, materials can transition from solid to liquid, such as the melting of mantle rocks to form magma. This temperature-driven process influences geological phenomena like volcanic activity and plate tectonics, as well as the formation of different rock types. Additionally, temperature impacts the viscosity and behavior of molten materials, which are essential for understanding Earth's dynamic processes.
The answer is the asthenosphere, the crust is part of the lithosphere, which is part of the outer portion of the earth (the part we live on), the asthenosphere is just below it and the point where rocks begin to melt.