What causes rock to melt inside the earth?

Answer 1

1) Residual heat of formation. The extreme thermal energy that is found within the core of the earth is due in part to the way the planet formed. The early earth was completely molten when protoplanetary materials were super heated as they aggregated. And the heat of formation was added to by the impact of lots of large objects, which added lots of heat energy. Some of that heat energy remains in the core. 2) Radioactive decay. Radioactive elements were carried to the core of the earth with iron when the earth differentiated early in its history. These elements are decaying and releasing heat as they do so. This heat keeps the iron core molten and is responsible for providing the energy to melt the rocks and form volcanoes.

Answer 2

Heat. Molten rock can be formed from the subduction and melting of cold, dense, wet oceanic crust at some convergent plate margins. The moisture in the rock assists in the melting of the crust and the rock surrounding it. Magma is also formed at hot spots in the mantle where hot material undergoes decompression melting as it rises. Decompression melting also occurs at the mid-ocean ridges where new oceanic crust is formed from rising mantle rock.

Answer 3

Rock melts inside the Earth primarily due to high temperatures and pressure. The Earth's heat comes from radioactive decay and residual heat from its formation. When the temperature and pressure reach a certain point, the minerals in the rock can no longer maintain their solid state, leading to melting.

Answer 4

a. a rise in temperature e. a drop in pressure I believe it is heat and pressure

Answer 5

Magma is liquefied rock within the earth. Lava is liquefied rock that has exited the earth's interior through a crack or fissure in the crust.

Answer 6

The Earth's Core

Answer 7

sexy and i know it