It is the pressure of the overlying rock and is equal to density of rock (kg.m^-3) x depth (m) x gravity (m.s^-2). Therefore, it increases with depth and it increases where rocks are denser like in the mantle. It is not responsible for rock deformation but it is responsible for metamorphism.

It is the pressure of the overlying rock and is equal to density of rock (kg.m^-3) x depth (m) x gravity (m.s^-2). Therefore, it increases with depth and it increases where rocks are denser like in the mantle. It is not responsible for rock deformation nor metamorphism.

It is the pressure of the overlying rock and is equal to density of rock (kg.m^-3) x depth (m) x gravity (m.s^-2). It decreases with depth and that is why rocks become ductile deeper in the crust.

It is the pressure of the overlying rock and is equal to density of rock (kg.m^-3) x depth (m) x gravity (m.s^-2). It decreases with depth and that is why rocks become brittle deeper in the crust.

It is the pressure of the overlying rock and is equal to density of rock (kg.m^-3) x depth (m) x gravity (m.s^-2). Therefore, it increases with depth and it increases when rocks are denser like in the mantle. It is responsible for rock deformation and metamorphism.